---
_id: '14843'
abstract:
- lang: eng
text: The coupling between Ca2+ channels and release sensors is a key factor defining
the signaling properties of a synapse. However, the coupling nanotopography at
many synapses remains unknown, and it is unclear how it changes during development.
To address these questions, we examined coupling at the cerebellar inhibitory
basket cell (BC)-Purkinje cell (PC) synapse. Biophysical analysis of transmission
by paired recording and intracellular pipette perfusion revealed that the effects
of exogenous Ca2+ chelators decreased during development, despite constant reliance
of release on P/Q-type Ca2+ channels. Structural analysis by freeze-fracture replica
labeling (FRL) and transmission electron microscopy (EM) indicated that presynaptic
P/Q-type Ca2+ channels formed nanoclusters throughout development, whereas docked
vesicles were only clustered at later developmental stages. Modeling suggested
a developmental transformation from a more random to a more clustered coupling
nanotopography. Thus, presynaptic signaling developmentally approaches a point-to-point
configuration, optimizing speed, reliability, and energy efficiency of synaptic
transmission.
acknowledged_ssus:
- _id: EM-Fac
- _id: PreCl
- _id: M-Shop
acknowledgement: We thank Drs. David DiGregorio and Erwin Neher for critically reading
an earlier version of the manuscript, Ralf Schneggenburger for helpful discussions,
Benjamin Suter and Katharina Lichter for support with image analysis, Chris Wojtan
for advice on numerical solution of partial differential equations, Maria Reva for
help with Ripley analysis, Alois Schlögl for programming, and Akari Hagiwara and
Toshihisa Ohtsuka for anti-ELKS antibody. We are grateful to Florian Marr, Christina
Altmutter, and Vanessa Zheden for excellent technical assistance and to Eleftheria
Kralli-Beller for manuscript editing. This research was supported by the Scientific
Services Units (SSUs) of ISTA (Electron Microscopy Facility, Preclinical Facility,
and Machine Shop). The project received funding from the European Research Council
(ERC) under the European Union’s Horizon 2020 research and innovation program (grant
agreement no. 692692), the Fonds zur Förderung der Wissenschaftlichen Forschung
(Z 312-B27, Wittgenstein award; P 36232-B), all to P.J., and a DOC fellowship of
the Austrian Academy of Sciences to J.-J.C.
article_processing_charge: No
article_type: original
author:
- first_name: JingJing
full_name: Chen, JingJing
id: 2C4E65C8-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Walter
full_name: Kaufmann, Walter
id: 3F99E422-F248-11E8-B48F-1D18A9856A87
last_name: Kaufmann
orcid: 0000-0001-9735-5315
- first_name: Chong
full_name: Chen, Chong
id: 3DFD581A-F248-11E8-B48F-1D18A9856A87
last_name: Chen
- first_name: Itaru
full_name: Arai, Itaru
id: 32A73F6C-F248-11E8-B48F-1D18A9856A87
last_name: Arai
- first_name: Olena
full_name: Kim, Olena
id: 3F8ABDDA-F248-11E8-B48F-1D18A9856A87
last_name: Kim
- first_name: Ryuichi
full_name: Shigemoto, Ryuichi
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
citation:
ama: Chen J, Kaufmann W, Chen C, et al. Developmental transformation of Ca2+ channel-vesicle
nanotopography at a central GABAergic synapse. Neuron. doi:10.1016/j.neuron.2023.12.002
apa: Chen, J., Kaufmann, W., Chen, C., Arai, itaru, Kim, O., Shigemoto, R., &
Jonas, P. M. (n.d.). Developmental transformation of Ca2+ channel-vesicle nanotopography
at a central GABAergic synapse. Neuron. Elsevier. https://doi.org/10.1016/j.neuron.2023.12.002
chicago: Chen, JingJing, Walter Kaufmann, Chong Chen, itaru Arai, Olena Kim, Ryuichi
Shigemoto, and Peter M Jonas. “Developmental Transformation of Ca2+ Channel-Vesicle
Nanotopography at a Central GABAergic Synapse.” Neuron. Elsevier, n.d.
https://doi.org/10.1016/j.neuron.2023.12.002.
ieee: J. Chen et al., “Developmental transformation of Ca2+ channel-vesicle
nanotopography at a central GABAergic synapse,” Neuron. Elsevier.
ista: Chen J, Kaufmann W, Chen C, Arai itaru, Kim O, Shigemoto R, Jonas PM. Developmental
transformation of Ca2+ channel-vesicle nanotopography at a central GABAergic synapse.
Neuron.
mla: Chen, JingJing, et al. “Developmental Transformation of Ca2+ Channel-Vesicle
Nanotopography at a Central GABAergic Synapse.” Neuron, Elsevier, doi:10.1016/j.neuron.2023.12.002.
short: J. Chen, W. Kaufmann, C. Chen, itaru Arai, O. Kim, R. Shigemoto, P.M. Jonas,
Neuron (n.d.).
date_created: 2024-01-21T23:00:56Z
date_published: 2024-01-11T00:00:00Z
date_updated: 2024-03-05T09:31:24Z
day: '11'
department:
- _id: PeJo
- _id: EM-Fac
- _id: RySh
doi: 10.1016/j.neuron.2023.12.002
ec_funded: 1
external_id:
pmid:
- '38215739'
language:
- iso: eng
month: '01'
oa_version: None
pmid: 1
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '692692'
name: Biophysics and circuit function of a giant cortical glumatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z00312
name: The Wittgenstein Prize
- _id: bd88be38-d553-11ed-ba76-81d5a70a6ef5
grant_number: P36232
name: Mechanisms of GABA release in hippocampal circuits
- _id: 26B66A3E-B435-11E9-9278-68D0E5697425
grant_number: '25383'
name: Development of nanodomain coupling between Ca2+ channels and release sensors
at a central inhibitory synapse
publication: Neuron
publication_identifier:
eissn:
- 1097-4199
issn:
- 0896-6273
publication_status: inpress
publisher: Elsevier
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/synapses-brought-to-the-point/
scopus_import: '1'
status: public
title: Developmental transformation of Ca2+ channel-vesicle nanotopography at a central
GABAergic synapse
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14846'
abstract:
- lang: eng
text: Contraction and flow of the actin cell cortex have emerged as a common principle
by which cells reorganize their cytoplasm and take shape. However, how these cortical
flows interact with adjacent cytoplasmic components, changing their form and localization,
and how this affects cytoplasmic organization and cell shape remains unclear.
Here we show that in ascidian oocytes, the cooperative activities of cortical
actomyosin flows and deformation of the adjacent mitochondria-rich myoplasm drive
oocyte cytoplasmic reorganization and shape changes following fertilization. We
show that vegetal-directed cortical actomyosin flows, established upon oocyte
fertilization, lead to both the accumulation of cortical actin at the vegetal
pole of the zygote and compression and local buckling of the adjacent elastic
solid-like myoplasm layer due to friction forces generated at their interface.
Once cortical flows have ceased, the multiple myoplasm buckles resolve into one
larger buckle, which again drives the formation of the contraction pole—a protuberance
of the zygote’s vegetal pole where maternal mRNAs accumulate. Thus, our findings
reveal a mechanism where cortical actomyosin network flows determine cytoplasmic
reorganization and cell shape by deforming adjacent cytoplasmic components through
friction forces.
acknowledged_ssus:
- _id: EM-Fac
- _id: Bio
- _id: NanoFab
acknowledgement: We would like to thank A. McDougall, E. Hannezo and the Heisenberg
lab for fruitful discussions and reagents. We also thank E. Munro for the iMyo-YFP
and Bra>iMyo-mScarlet constructs. This research was supported by the Scientific
Service Units of the Institute of Science and Technology Austria through resources
provided by the Electron Microscopy Facility, Imaging and Optics Facility and the
Nanofabrication Facility. This work was supported by a Joint Project Grant from
the FWF (I 3601-B27).
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Silvia
full_name: Caballero Mancebo, Silvia
id: 2F1E1758-F248-11E8-B48F-1D18A9856A87
last_name: Caballero Mancebo
orcid: 0000-0002-5223-3346
- first_name: Rushikesh
full_name: Shinde, Rushikesh
last_name: Shinde
- first_name: Madison
full_name: Bolger-Munro, Madison
id: 516F03FA-93A3-11EA-A7C5-D6BE3DDC885E
last_name: Bolger-Munro
orcid: 0000-0002-8176-4824
- first_name: Matilda
full_name: Peruzzo, Matilda
id: 3F920B30-F248-11E8-B48F-1D18A9856A87
last_name: Peruzzo
orcid: 0000-0002-3415-4628
- first_name: Gregory
full_name: Szep, Gregory
id: 4BFB7762-F248-11E8-B48F-1D18A9856A87
last_name: Szep
- first_name: Irene
full_name: Steccari, Irene
id: 2705C766-9FE2-11EA-B224-C6773DDC885E
last_name: Steccari
- first_name: David
full_name: Labrousse Arias, David
id: CD573DF4-9ED3-11E9-9D77-3223E6697425
last_name: Labrousse Arias
- first_name: Vanessa
full_name: Zheden, Vanessa
id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
last_name: Zheden
orcid: 0000-0002-9438-4783
- first_name: Jack
full_name: Merrin, Jack
id: 4515C308-F248-11E8-B48F-1D18A9856A87
last_name: Merrin
orcid: 0000-0001-5145-4609
- first_name: Andrew
full_name: Callan-Jones, Andrew
last_name: Callan-Jones
- first_name: Raphaël
full_name: Voituriez, Raphaël
last_name: Voituriez
- first_name: Carl-Philipp J
full_name: Heisenberg, Carl-Philipp J
id: 39427864-F248-11E8-B48F-1D18A9856A87
last_name: Heisenberg
orcid: 0000-0002-0912-4566
citation:
ama: Caballero Mancebo S, Shinde R, Bolger-Munro M, et al. Friction forces determine
cytoplasmic reorganization and shape changes of ascidian oocytes upon fertilization.
Nature Physics. 2024. doi:10.1038/s41567-023-02302-1
apa: Caballero Mancebo, S., Shinde, R., Bolger-Munro, M., Peruzzo, M., Szep, G.,
Steccari, I., … Heisenberg, C.-P. J. (2024). Friction forces determine cytoplasmic
reorganization and shape changes of ascidian oocytes upon fertilization. Nature
Physics. Springer Nature. https://doi.org/10.1038/s41567-023-02302-1
chicago: Caballero Mancebo, Silvia, Rushikesh Shinde, Madison Bolger-Munro, Matilda
Peruzzo, Gregory Szep, Irene Steccari, David Labrousse Arias, et al. “Friction
Forces Determine Cytoplasmic Reorganization and Shape Changes of Ascidian Oocytes
upon Fertilization.” Nature Physics. Springer Nature, 2024. https://doi.org/10.1038/s41567-023-02302-1.
ieee: S. Caballero Mancebo et al., “Friction forces determine cytoplasmic
reorganization and shape changes of ascidian oocytes upon fertilization,” Nature
Physics. Springer Nature, 2024.
ista: Caballero Mancebo S, Shinde R, Bolger-Munro M, Peruzzo M, Szep G, Steccari
I, Labrousse Arias D, Zheden V, Merrin J, Callan-Jones A, Voituriez R, Heisenberg
C-PJ. 2024. Friction forces determine cytoplasmic reorganization and shape changes
of ascidian oocytes upon fertilization. Nature Physics.
mla: Caballero Mancebo, Silvia, et al. “Friction Forces Determine Cytoplasmic Reorganization
and Shape Changes of Ascidian Oocytes upon Fertilization.” Nature Physics,
Springer Nature, 2024, doi:10.1038/s41567-023-02302-1.
short: S. Caballero Mancebo, R. Shinde, M. Bolger-Munro, M. Peruzzo, G. Szep, I.
Steccari, D. Labrousse Arias, V. Zheden, J. Merrin, A. Callan-Jones, R. Voituriez,
C.-P.J. Heisenberg, Nature Physics (2024).
date_created: 2024-01-21T23:00:57Z
date_published: 2024-01-09T00:00:00Z
date_updated: 2024-03-05T09:33:38Z
day: '09'
department:
- _id: CaHe
- _id: JoFi
- _id: MiSi
- _id: EM-Fac
- _id: NanoFab
doi: 10.1038/s41567-023-02302-1
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41567-023-02302-1
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 2646861A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: I03601
name: Control of embryonic cleavage pattern
publication: Nature Physics
publication_identifier:
eissn:
- 1745-2481
issn:
- 1745-2473
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/stranger-than-friction-a-force-initiating-life/
scopus_import: '1'
status: public
title: Friction forces determine cytoplasmic reorganization and shape changes of ascidian
oocytes upon fertilization
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '14979'
abstract:
- lang: eng
text: Poxviruses are among the largest double-stranded DNA viruses, with members
such as variola virus, monkeypox virus and the vaccination strain vaccinia virus
(VACV). Knowledge about the structural proteins that form the viral core has remained
sparse. While major core proteins have been annotated via indirect experimental
evidence, their structures have remained elusive and they could not be assigned
to individual core features. Hence, which proteins constitute which layers of
the core, such as the palisade layer and the inner core wall, has remained enigmatic.
Here we show, using a multi-modal cryo-electron microscopy (cryo-EM) approach
in combination with AlphaFold molecular modeling, that trimers formed by the cleavage
product of VACV protein A10 are the key component of the palisade layer. This
allows us to place previously obtained descriptions of protein interactions within
the core wall into perspective and to provide a detailed model of poxvirus core
architecture. Importantly, we show that interactions within A10 trimers are likely
generalizable over members of orthopox- and parapoxviruses.
acknowledged_ssus:
- _id: ScienComp
- _id: LifeSc
- _id: EM-Fac
acknowledgement: "We thank A. Bergthaler (Research Center for Molecular Medicine of
the Austrian Academy of Sciences) for providing VACV WR. We thank A. Nicholas and
his team at the ISTA proteomics facility, and S. Elefante at the ISTA Scientific
Computing facility for their support. We also thank F. Fäßler, D. Porley, T. Muthspiel
and other members of the Schur group for support and helpful discussions. We also
thank D. Castaño-Díez for support with Dynamo. We thank D. Farrell for his help
optimizing the Rosetta protocol to refine the atomic model into the cryo-EM map
with symmetry.\r\n\r\nF.K.M.S. acknowledges support from ISTA and EMBO. F.K.M.S.
also received support from the Austrian Science Fund (FWF) grant P31445. This publication
has been made possible in part by CZI grant DAF2021-234754 and grant https://doi.org/10.37921/812628ebpcwg
from the Chan Zuckerberg Initiative DAF, an advised fund of Silicon Valley Community
Foundation (funder https://doi.org/10.13039/100014989) awarded to F.K.M.S.\r\n\r\nThis
research was also supported by the Scientific Service Units (SSUs) of ISTA through
resources provided by Scientific Computing (SciComp), the Life Science Facility
(LSF), and the Electron Microscopy Facility (EMF). We also acknowledge the use of
COSMIC45 and Colabfold46."
article_processing_charge: Yes (in subscription journal)
article_type: original
author:
- first_name: Julia
full_name: Datler, Julia
id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
last_name: Datler
orcid: 0000-0002-3616-8580
- first_name: Jesse
full_name: Hansen, Jesse
id: 1063c618-6f9b-11ec-9123-f912fccded63
last_name: Hansen
- first_name: Andreas
full_name: Thader, Andreas
id: 3A18A7B8-F248-11E8-B48F-1D18A9856A87
last_name: Thader
- first_name: Alois
full_name: Schlögl, Alois
id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
last_name: Schlögl
orcid: 0000-0002-5621-8100
- first_name: Lukas W
full_name: Bauer, Lukas W
id: 0c894dcf-897b-11ed-a09c-8186353224b0
last_name: Bauer
- first_name: Victor-Valentin
full_name: Hodirnau, Victor-Valentin
id: 3661B498-F248-11E8-B48F-1D18A9856A87
last_name: Hodirnau
- first_name: Florian KM
full_name: Schur, Florian KM
id: 48AD8942-F248-11E8-B48F-1D18A9856A87
last_name: Schur
orcid: 0000-0003-4790-8078
citation:
ama: Datler J, Hansen J, Thader A, et al. Multi-modal cryo-EM reveals trimers of
protein A10 to form the palisade layer in poxvirus cores. Nature Structural
& Molecular Biology. 2024. doi:10.1038/s41594-023-01201-6
apa: Datler, J., Hansen, J., Thader, A., Schlögl, A., Bauer, L. W., Hodirnau, V.-V.,
& Schur, F. K. (2024). Multi-modal cryo-EM reveals trimers of protein A10
to form the palisade layer in poxvirus cores. Nature Structural & Molecular
Biology. Springer Nature. https://doi.org/10.1038/s41594-023-01201-6
chicago: Datler, Julia, Jesse Hansen, Andreas Thader, Alois Schlögl, Lukas W Bauer,
Victor-Valentin Hodirnau, and Florian KM Schur. “Multi-Modal Cryo-EM Reveals Trimers
of Protein A10 to Form the Palisade Layer in Poxvirus Cores.” Nature Structural
& Molecular Biology. Springer Nature, 2024. https://doi.org/10.1038/s41594-023-01201-6.
ieee: J. Datler et al., “Multi-modal cryo-EM reveals trimers of protein A10
to form the palisade layer in poxvirus cores,” Nature Structural & Molecular
Biology. Springer Nature, 2024.
ista: Datler J, Hansen J, Thader A, Schlögl A, Bauer LW, Hodirnau V-V, Schur FK.
2024. Multi-modal cryo-EM reveals trimers of protein A10 to form the palisade
layer in poxvirus cores. Nature Structural & Molecular Biology.
mla: Datler, Julia, et al. “Multi-Modal Cryo-EM Reveals Trimers of Protein A10 to
Form the Palisade Layer in Poxvirus Cores.” Nature Structural & Molecular
Biology, Springer Nature, 2024, doi:10.1038/s41594-023-01201-6.
short: J. Datler, J. Hansen, A. Thader, A. Schlögl, L.W. Bauer, V.-V. Hodirnau,
F.K. Schur, Nature Structural & Molecular Biology (2024).
date_created: 2024-02-12T09:59:45Z
date_published: 2024-02-05T00:00:00Z
date_updated: 2024-03-05T09:27:47Z
day: '05'
ddc:
- '570'
department:
- _id: FlSc
- _id: ScienComp
- _id: EM-Fac
doi: 10.1038/s41594-023-01201-6
external_id:
pmid:
- '38316877'
has_accepted_license: '1'
keyword:
- Molecular Biology
- Structural Biology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1038/s41594-023-01201-6
month: '02'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 26736D6A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P31445
name: Structural conservation and diversity in retroviral capsid
publication: Nature Structural & Molecular Biology
publication_identifier:
eissn:
- 1545-9985
issn:
- 1545-9993
publication_status: epub_ahead
publisher: Springer Nature
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/down-to-the-core-of-poxviruses/
status: public
title: Multi-modal cryo-EM reveals trimers of protein A10 to form the palisade layer
in poxvirus cores
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2024'
...
---
_id: '12334'
abstract:
- lang: eng
text: Regulation of the Arp2/3 complex is required for productive nucleation of
branched actin networks. An emerging aspect of regulation is the incorporation
of subunit isoforms into the Arp2/3 complex. Specifically, both ArpC5 subunit
isoforms, ArpC5 and ArpC5L, have been reported to fine-tune nucleation activity
and branch junction stability. We have combined reverse genetics and cellular
structural biology to describe how ArpC5 and ArpC5L differentially affect cell
migration. Both define the structural stability of ArpC1 in branch junctions and,
in turn, by determining protrusion characteristics, affect protein dynamics and
actin network ultrastructure. ArpC5 isoforms also affect the positioning of members
of the Ena/Vasodilator-stimulated phosphoprotein (VASP) family of actin filament
elongators, which mediate ArpC5 isoform–specific effects on the actin assembly
level. Our results suggest that ArpC5 and Ena/VASP proteins are part of a signaling
pathway enhancing cell migration.
acknowledged_ssus:
- _id: ScienComp
- _id: LifeSc
- _id: Bio
- _id: EM-Fac
acknowledgement: "We would like to thank K. von Peinen and B. Denker (Helmholtz Centre
for Infection Research, Braunschweig, Germany) for experimental and technical assistance,
respectively.\r\nThis research was supported by the Scientific Service Units (SSUs)
of ISTA through resources provided by Scientific Computing (SciComp), the Life Science
Facility (LSF), the Imaging and Optics facility (IOF), and the Electron Microscopy
Facility (EMF). We acknowledge support from ISTA and from the Austrian Science Fund
(FWF) (P33367) to F.K.M.S., from the Research Training Group GRK2223 and the Helmholtz
Society to K.R,. and from the Deutsche Forschungsgemeinschaft (DFG) to J.F. and
K.R."
article_number: add6495
article_processing_charge: No
article_type: original
author:
- first_name: Florian
full_name: Fäßler, Florian
id: 404F5528-F248-11E8-B48F-1D18A9856A87
last_name: Fäßler
orcid: 0000-0001-7149-769X
- first_name: Manjunath
full_name: Javoor, Manjunath
id: 305ab18b-dc7d-11ea-9b2f-b58195228ea2
last_name: Javoor
- first_name: Julia
full_name: Datler, Julia
id: 3B12E2E6-F248-11E8-B48F-1D18A9856A87
last_name: Datler
orcid: 0000-0002-3616-8580
- first_name: Hermann
full_name: Döring, Hermann
last_name: Döring
- first_name: Florian
full_name: Hofer, Florian
id: b9d234ba-9e33-11ed-95b6-cd561df280e6
last_name: Hofer
- first_name: Georgi A
full_name: Dimchev, Georgi A
id: 38C393BE-F248-11E8-B48F-1D18A9856A87
last_name: Dimchev
orcid: 0000-0001-8370-6161
- first_name: Victor-Valentin
full_name: Hodirnau, Victor-Valentin
id: 3661B498-F248-11E8-B48F-1D18A9856A87
last_name: Hodirnau
- first_name: Jan
full_name: Faix, Jan
last_name: Faix
- first_name: Klemens
full_name: Rottner, Klemens
last_name: Rottner
- first_name: Florian KM
full_name: Schur, Florian KM
id: 48AD8942-F248-11E8-B48F-1D18A9856A87
last_name: Schur
orcid: 0000-0003-4790-8078
citation:
ama: Fäßler F, Javoor M, Datler J, et al. ArpC5 isoforms regulate Arp2/3 complex–dependent
protrusion through differential Ena/VASP positioning. Science Advances.
2023;9(3). doi:10.1126/sciadv.add6495
apa: Fäßler, F., Javoor, M., Datler, J., Döring, H., Hofer, F., Dimchev, G. A.,
… Schur, F. K. (2023). ArpC5 isoforms regulate Arp2/3 complex–dependent protrusion
through differential Ena/VASP positioning. Science Advances. American Association
for the Advancement of Science. https://doi.org/10.1126/sciadv.add6495
chicago: Fäßler, Florian, Manjunath Javoor, Julia Datler, Hermann Döring, Florian
Hofer, Georgi A Dimchev, Victor-Valentin Hodirnau, Jan Faix, Klemens Rottner,
and Florian KM Schur. “ArpC5 Isoforms Regulate Arp2/3 Complex–Dependent Protrusion
through Differential Ena/VASP Positioning.” Science Advances. American
Association for the Advancement of Science, 2023. https://doi.org/10.1126/sciadv.add6495.
ieee: F. Fäßler et al., “ArpC5 isoforms regulate Arp2/3 complex–dependent
protrusion through differential Ena/VASP positioning,” Science Advances,
vol. 9, no. 3. American Association for the Advancement of Science, 2023.
ista: Fäßler F, Javoor M, Datler J, Döring H, Hofer F, Dimchev GA, Hodirnau V-V,
Faix J, Rottner K, Schur FK. 2023. ArpC5 isoforms regulate Arp2/3 complex–dependent
protrusion through differential Ena/VASP positioning. Science Advances. 9(3),
add6495.
mla: Fäßler, Florian, et al. “ArpC5 Isoforms Regulate Arp2/3 Complex–Dependent Protrusion
through Differential Ena/VASP Positioning.” Science Advances, vol. 9, no.
3, add6495, American Association for the Advancement of Science, 2023, doi:10.1126/sciadv.add6495.
short: F. Fäßler, M. Javoor, J. Datler, H. Döring, F. Hofer, G.A. Dimchev, V.-V.
Hodirnau, J. Faix, K. Rottner, F.K. Schur, Science Advances 9 (2023).
date_created: 2023-01-23T07:26:42Z
date_published: 2023-01-20T00:00:00Z
date_updated: 2026-05-21T07:36:27Z
day: '20'
ddc:
- '570'
department:
- _id: FlSc
- _id: EM-Fac
doi: 10.1126/sciadv.add6495
external_id:
isi:
- '000964550100015'
file:
- access_level: open_access
checksum: ce81a6d0b84170e5e8c62f6acfa15d9e
content_type: application/pdf
creator: dernst
date_created: 2023-01-23T07:45:54Z
date_updated: 2023-01-23T07:45:54Z
file_id: '12335'
file_name: 2023_ScienceAdvances_Faessler.pdf
file_size: 1756234
relation: main_file
success: 1
file_date_updated: 2023-01-23T07:45:54Z
has_accepted_license: '1'
intvolume: ' 9'
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issue: '3'
keyword:
- Multidisciplinary
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
project:
- _id: 9B954C5C-BA93-11EA-9121-9846C619BF3A
grant_number: P33367
name: Structure and isoform diversity of the Arp2/3 complex
publication: Science Advances
publication_identifier:
issn:
- 2375-2548
publication_status: published
publisher: American Association for the Advancement of Science
quality_controlled: '1'
related_material:
record:
- id: '14562'
relation: research_data
status: for_moderation
scopus_import: '1'
status: public
title: ArpC5 isoforms regulate Arp2/3 complex–dependent protrusion through differential
Ena/VASP positioning
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 9
year: '2023'
...
---
_id: '12470'
abstract:
- lang: eng
text: "The brain is an exceptionally sophisticated organ consisting of billions
of cells and trillions of \r\nconnections that orchestrate our cognition and behavior.
To decode its complex connectivity, it is \r\npivotal to disentangle its intricate
architecture spanning from cm-sized circuits down to tens of \r\nnm-small synapses.\r\nTo
achieve this goal, I developed CATS – Comprehensive Analysis of nervous Tissue
across \r\nScales, a versatile toolbox for obtaining a holistic view of nervous
tissue context with (super\x02resolution) fluorescence microscopy. CATS combines
comprehensive labeling of the extracellular\r\nspace, that is compatible with
chemical fixation, with information on molecular markers, super\x02resolved data
acquisition and machine-learning based data analysis for segmentation and synapse
\r\nidentification.\r\nI used CATS to analyze key features of nervous tissue connectivity,
ranging from whole tissue \r\narchitecture, neuronal in- and output-fields, down
to synapse morphology.\r\nFocusing on the hippocampal circuitry, I quantified
synaptic transmission properties of mossy \r\nfiber boutons and analyzed the connectivity
pattern of dentate gyrus granule cells with CA3 \r\npyramidal neurons. This shows
that CATS is a viable tool to study hallmarks of neuronal \r\nconnectivity with
light microscopy."
acknowledged_ssus:
- _id: Bio
- _id: LifeSc
- _id: PreCl
- _id: EM-Fac
- _id: M-Shop
- _id: ScienComp
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Julia M
full_name: Michalska, Julia M
id: 443DB6DE-F248-11E8-B48F-1D18A9856A87
last_name: Michalska
orcid: 0000-0003-3862-1235
citation:
ama: Michalska JM. A versatile toolbox for the comprehensive analysis of nervous
tissue organization with light microscopy. 2023. doi:10.15479/at:ista:12470
apa: Michalska, J. M. (2023). A versatile toolbox for the comprehensive analysis
of nervous tissue organization with light microscopy. Institute of Science
and Technology Austria. https://doi.org/10.15479/at:ista:12470
chicago: Michalska, Julia M. “A Versatile Toolbox for the Comprehensive Analysis
of Nervous Tissue Organization with Light Microscopy.” Institute of Science and
Technology Austria, 2023. https://doi.org/10.15479/at:ista:12470.
ieee: J. M. Michalska, “A versatile toolbox for the comprehensive analysis of nervous
tissue organization with light microscopy,” Institute of Science and Technology
Austria, 2023.
ista: Michalska JM. 2023. A versatile toolbox for the comprehensive analysis of
nervous tissue organization with light microscopy. Institute of Science and Technology
Austria.
mla: Michalska, Julia M. A Versatile Toolbox for the Comprehensive Analysis of
Nervous Tissue Organization with Light Microscopy. Institute of Science and
Technology Austria, 2023, doi:10.15479/at:ista:12470.
short: J.M. Michalska, A Versatile Toolbox for the Comprehensive Analysis of Nervous
Tissue Organization with Light Microscopy, Institute of Science and Technology
Austria, 2023.
date_created: 2023-01-31T15:10:53Z
date_published: 2023-01-09T00:00:00Z
date_updated: 2023-08-31T12:26:58Z
day: '09'
ddc:
- '610'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JoDa
doi: 10.15479/at:ista:12470
ec_funded: 1
file:
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checksum: 1a2306e5f59f52df598e7ecfadf921ac
content_type: application/pdf
creator: cchlebak
date_created: 2023-01-31T15:11:42Z
date_updated: 2023-07-27T22:30:54Z
embargo: 2023-07-09
file_id: '12471'
file_name: 20230109_PhD_thesis_JM_final.pdf
file_size: 41771714
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date_created: 2023-01-31T15:11:51Z
date_updated: 2023-07-10T22:30:04Z
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file_name: 20230109_PhD_thesis_JM_final.docx
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has_accepted_license: '1'
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: '201'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
- _id: 26AA4EF2-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: W1232-B24
name: Molecular Drug Targets
publication_identifier:
isbn:
- ' 978-3-99078-026-8'
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '11943'
relation: part_of_dissertation
status: public
- id: '11950'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Johann G
full_name: Danzl, Johann G
id: 42EFD3B6-F248-11E8-B48F-1D18A9856A87
last_name: Danzl
orcid: 0000-0001-8559-3973
title: A versatile toolbox for the comprehensive analysis of nervous tissue organization
with light microscopy
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '12491'
abstract:
- lang: eng
text: "The extracellular matrix (ECM) is a hydrated and complex three-dimensional
network consisting of proteins, polysaccharides, and water. It provides structural
scaffolding for the cells embedded within it and is essential in regulating numerous
physiological processes, including cell migration and proliferation, wound healing,
and stem cell fate. \r\nDespite extensive study, detailed structural knowledge
of ECM components in physiologically relevant conditions is still rudimentary.
This is due to methodological limitations in specimen preparation protocols which
are incompatible with keeping large samples, such as the ECM, in their native
state for subsequent imaging. Conventional electron microscopy (EM) techniques
rely on fixation, dehydration, contrasting, and sectioning. This results in the
alteration of a highly hydrated environment and the potential introduction of
artifacts. Other structural biology techniques, such as nuclear magnetic resonance
(NMR) spectroscopy and X-ray crystallography, allow high-resolution analysis of
protein structures but only work on homogenous and purified samples, hence lacking
contextual information. Currently, no approach exists for the ultrastructural
and structural study of extracellular components under native conditions in a
physiological, 3D environment. \r\nIn this thesis, I have developed a workflow
that allows for the ultrastructural analysis of the ECM in near-native conditions
at molecular resolution. The developments I introduced include implementing a
novel specimen preparation workflow for cell-derived matrices (CDMs) to render
them compatible with ion-beam milling and subsequent high-resolution cryo-electron
tomography (ET). \r\nTo this end, I have established protocols to generate CDMs
grown over several weeks on EM grids that are compatible with downstream cryo-EM
sample preparation and imaging techniques. Characterization of these ECMs confirmed
that they contain essential ECM components such as collagen I, collagen VI, and
fibronectin I in high abundance and hence represent a bona fide biologically-relevant
sample. I successfully optimized vitrification of these specimens by testing various
vitrification techniques and cryoprotectants. \r\nIn order to obtain high-resolution
molecular insights into the ultrastructure and organization of CDMs, I established
cryo-focused ion beam scanning electron microscopy (FIBSEM) on these challenging
and complex specimens. I explored different approaches for the creation of thin
cryo-lamellae by FIB milling and succeeded in optimizing the cryo-lift-out technique,
resulting in high-quality lamellae of approximately 200 nm thickness. \r\nHigh-resolution
Cryo-ET of these lamellae revealed for the first time the architecture of native
CDM in the context of matrix-secreting cells. This allowed for the in situ visualization
of fibrillar matrix proteins such as collagen, laying the foundation for future
structural and ultrastructural characterization of these proteins in their near-native
environment. \r\nIn summary, in this thesis, I present a novel workflow that combines
state-of-the-art cryo-EM specimen preparation and imaging technologies to permit
characterization of the ECM, an important tissue component in higher organisms.
This innovative and highly versatile workflow will enable addressing far-reaching
questions on ECM architecture, composition, and reciprocal ECM-cell interactions."
acknowledged_ssus:
- _id: EM-Fac
- _id: LifeSc
- _id: Bio
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Bettina
full_name: Zens, Bettina
id: 45FD126C-F248-11E8-B48F-1D18A9856A87
last_name: Zens
citation:
ama: Zens B. Ultrastructural characterization of natively preserved extracellular
matrix by cryo-electron tomography. 2023. doi:10.15479/at:ista:12491
apa: Zens, B. (2023). Ultrastructural characterization of natively preserved
extracellular matrix by cryo-electron tomography. Institute of Science and
Technology Austria. https://doi.org/10.15479/at:ista:12491
chicago: Zens, Bettina. “Ultrastructural Characterization of Natively Preserved
Extracellular Matrix by Cryo-Electron Tomography.” Institute of Science and Technology
Austria, 2023. https://doi.org/10.15479/at:ista:12491.
ieee: B. Zens, “Ultrastructural characterization of natively preserved extracellular
matrix by cryo-electron tomography,” Institute of Science and Technology Austria,
2023.
ista: Zens B. 2023. Ultrastructural characterization of natively preserved extracellular
matrix by cryo-electron tomography. Institute of Science and Technology Austria.
mla: Zens, Bettina. Ultrastructural Characterization of Natively Preserved Extracellular
Matrix by Cryo-Electron Tomography. Institute of Science and Technology Austria,
2023, doi:10.15479/at:ista:12491.
short: B. Zens, Ultrastructural Characterization of Natively Preserved Extracellular
Matrix by Cryo-Electron Tomography, Institute of Science and Technology Austria,
2023.
date_created: 2023-02-02T14:50:20Z
date_published: 2023-02-02T00:00:00Z
date_updated: 2024-02-08T23:30:05Z
day: '02'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: FlSc
doi: 10.15479/at:ista:12491
file:
- access_level: open_access
checksum: 069d87f025e0799bf9e3c375664264f2
content_type: application/pdf
creator: bzens
date_created: 2023-02-07T13:07:38Z
date_updated: 2024-02-08T23:30:04Z
embargo: 2024-02-07
file_id: '12527'
file_name: PhDThesis_BettinaZens_2023_final.pdf
file_size: 23082464
relation: main_file
- access_level: closed
checksum: 8c66ed203495d6e078ed1002a866520c
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: bzens
date_created: 2023-02-07T13:09:05Z
date_updated: 2024-02-08T23:30:04Z
embargo_to: open_access
file_id: '12528'
file_name: PhDThesis_BettinaZens_2023_final.docx
file_size: 106169509
relation: source_file
file_date_updated: 2024-02-08T23:30:04Z
has_accepted_license: '1'
keyword:
- cryo-EM
- cryo-ET
- FIB milling
- method development
- FIBSEM
- extracellular matrix
- ECM
- cell-derived matrices
- CDMs
- cell culture
- high pressure freezing
- HPF
- structural biology
- tomography
- collagen
language:
- iso: eng
month: '02'
oa: 1
oa_version: Published Version
page: '187'
project:
- _id: eba3b5f6-77a9-11ec-83b8-cf0905748aa3
name: Integrated visual proteomics of reciprocal cell-extracellular matrix interactions
- _id: 059B463C-7A3F-11EA-A408-12923DDC885E
name: NÖ-Fonds Preis für die Jungforscherin des Jahres am IST Austria
publication_identifier:
isbn:
- 978-3-99078-027-5
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '8586'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Florian KM
full_name: Schur, Florian KM
id: 48AD8942-F248-11E8-B48F-1D18A9856A87
last_name: Schur
orcid: 0000-0003-4790-8078
title: Ultrastructural characterization of natively preserved extracellular matrix
by cryo-electron tomography
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '12759'
abstract:
- lang: eng
text: Stereological methods for estimating the 3D particle size and density from
2D projections are essential to many research fields. These methods are, however,
prone to errors arising from undetected particle profiles due to sectioning and
limited resolution, known as ‘lost caps’. A potential solution developed by Keiding,
Jensen, and Ranek in 1972, which we refer to as the Keiding model, accounts for
lost caps by quantifying the smallest detectable profile in terms of its limiting
‘cap angle’ (ϕ), a size-independent measure of a particle’s distance from the
section surface. However, this simple solution has not been widely adopted nor
tested. Rather, model-independent design-based stereological methods, which do
not explicitly account for lost caps, have come to the fore. Here, we provide
the first experimental validation of the Keiding model by comparing the size and
density of particles estimated from 2D projections with direct measurement from
3D EM reconstructions of the same tissue. We applied the Keiding model to estimate
the size and density of somata, nuclei and vesicles in the cerebellum of mice
and rats, where high packing density can be problematic for design-based methods.
Our analysis reveals a Gaussian distribution for ϕ rather than a single value.
Nevertheless, curve fits of the Keiding model to the 2D diameter distribution
accurately estimate the mean ϕ and 3D diameter distribution. While systematic
testing using simulations revealed an upper limit to determining ϕ, our analysis
shows that estimated ϕ can be used to determine the 3D particle density from the
2D density under a wide range of conditions, and this method is potentially more
accurate than minimum-size-based lost-cap corrections and disector methods. Our
results show the Keiding model provides an efficient means of accurately estimating
the size and density of particles from 2D projections even under conditions of
a high density.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: "We thank the IST Austria Electron Microscopy Facility for technical
support, and Diccon Coyle, Andrea Lőrincz and Zoltan Nusser for their helpful comments
and discussions.\r\nFunding for JSR and RAS was from the Wellcome Trust (203048;
224499; https://\r\nwellcome.org/). RAS is in receipt of a Wellcome Trust Principal
Research Fellowship (224499).\r\nFunding for CBM and PJ was from Fond zur Förderung
der Wissenschaftlichen Forschung (V\r\n739-B27 Elise-Richter Programme to CBM, Z
312-B27 Wittgenstein Award to PJ; \r\nhttps://www.fwf.ac.at). PJ received funding
from the European Research Council (ERC; https://erc.europa.eu) under the European
Union’s Horizon 2020 research and innovation programme (grant agreement no. 692692).
NH was supported by a European\r\nResearch Council Advanced Grant (ERC-AG787157)."
article_number: e0277148
article_processing_charge: No
article_type: original
author:
- first_name: Jason Seth
full_name: Rothman, Jason Seth
last_name: Rothman
- first_name: Carolina
full_name: Borges Merjane, Carolina
id: 4305C450-F248-11E8-B48F-1D18A9856A87
last_name: Borges Merjane
orcid: 0000-0003-0005-401X
- first_name: Noemi
full_name: Holderith, Noemi
last_name: Holderith
- first_name: Peter M
full_name: Jonas, Peter M
id: 353C1B58-F248-11E8-B48F-1D18A9856A87
last_name: Jonas
orcid: 0000-0001-5001-4804
- first_name: R.
full_name: Angus Silver, R.
last_name: Angus Silver
citation:
ama: Rothman JS, Borges Merjane C, Holderith N, Jonas PM, Angus Silver R. Validation
of a stereological method for estimating particle size and density from 2D projections
with high accuracy. PLoS ONE. 2023;18(3 March). doi:10.1371/journal.pone.0277148
apa: Rothman, J. S., Borges Merjane, C., Holderith, N., Jonas, P. M., & Angus
Silver, R. (2023). Validation of a stereological method for estimating particle
size and density from 2D projections with high accuracy. PLoS ONE. Public
Library of Science. https://doi.org/10.1371/journal.pone.0277148
chicago: Rothman, Jason Seth, Carolina Borges Merjane, Noemi Holderith, Peter M
Jonas, and R. Angus Silver. “Validation of a Stereological Method for Estimating
Particle Size and Density from 2D Projections with High Accuracy.” PLoS ONE.
Public Library of Science, 2023. https://doi.org/10.1371/journal.pone.0277148.
ieee: J. S. Rothman, C. Borges Merjane, N. Holderith, P. M. Jonas, and R. Angus
Silver, “Validation of a stereological method for estimating particle size and
density from 2D projections with high accuracy,” PLoS ONE, vol. 18, no.
3 March. Public Library of Science, 2023.
ista: Rothman JS, Borges Merjane C, Holderith N, Jonas PM, Angus Silver R. 2023.
Validation of a stereological method for estimating particle size and density
from 2D projections with high accuracy. PLoS ONE. 18(3 March), e0277148.
mla: Rothman, Jason Seth, et al. “Validation of a Stereological Method for Estimating
Particle Size and Density from 2D Projections with High Accuracy.” PLoS ONE,
vol. 18, no. 3 March, e0277148, Public Library of Science, 2023, doi:10.1371/journal.pone.0277148.
short: J.S. Rothman, C. Borges Merjane, N. Holderith, P.M. Jonas, R. Angus Silver,
PLoS ONE 18 (2023).
date_created: 2023-03-26T22:01:07Z
date_published: 2023-03-17T00:00:00Z
date_updated: 2023-08-01T13:46:39Z
day: '17'
ddc:
- '570'
department:
- _id: PeJo
doi: 10.1371/journal.pone.0277148
ec_funded: 1
external_id:
isi:
- '001024737400001'
file:
- access_level: open_access
checksum: 2380331ec27cc87808826fc64419ac1c
content_type: application/pdf
creator: dernst
date_created: 2023-03-27T06:51:09Z
date_updated: 2023-03-27T06:51:09Z
file_id: '12770'
file_name: 2023_PLoSOne_Rothman.pdf
file_size: 7290413
relation: main_file
success: 1
file_date_updated: 2023-03-27T06:51:09Z
has_accepted_license: '1'
intvolume: ' 18'
isi: 1
issue: 3 March
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
project:
- _id: 25B7EB9E-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '692692'
name: Biophysics and circuit function of a giant cortical glumatergic synapse
- _id: 25C5A090-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: Z00312
name: The Wittgenstein Prize
- _id: 2696E7FE-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: V00739
name: Structural plasticity at mossy fiber-CA3 synapses
publication: PLoS ONE
publication_identifier:
eissn:
- 1932-6203
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: Validation of a stereological method for estimating particle size and density
from 2D projections with high accuracy
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 18
year: '2023'
...
---
_id: '12781'
abstract:
- lang: eng
text: "Most energy in humans is produced in form of ATP by the mitochondrial respiratory
chain consisting of several protein assemblies embedded into lipid membrane (complexes
I-V). Complex I is the first and the largest enzyme of the respiratory chain which
is essential for energy production. It couples the transfer of two electrons from
NADH to ubiquinone with proton translocation across bacterial or inner mitochondrial
membrane. The coupling mechanism between electron transfer and proton translocation
is one of the biggest enigma in bioenergetics and structural biology. Even though
the enzyme has been studied for decades, only recent technological advances in
cryo-EM allowed its extensive structural investigation. \r\n\r\nComplex I from
E.coli appears to be of special importance because it is a perfect model system
with a rich mutant library, however the structure of the entire complex was unknown.
In this thesis I have resolved structures of the minimal complex I version from
E. coli in different states including reduced, inhibited, under reaction turnover
and several others. Extensive structural analyses of these structures and comparison
to structures from other species allowed to derive general features of conformational
dynamics and propose a universal coupling mechanism. The mechanism is straightforward,
robust and consistent with decades of experimental data available for complex
I from different species. \r\n\r\nCyanobacterial NDH (cyanobacterial complex I)
is a part of broad complex I superfamily and was studied as well in this thesis.
It plays an important role in cyclic electron transfer (CET), during which electrons
are cycled within PSI through ferredoxin and plastoquinone to generate proton
gradient without NADPH production. Here, I solved structure of NDH and revealed
additional state, which was not observed before. The novel “resting” state allowed
to propose the mechanism of CET regulation. Moreover, conformational dynamics
of NDH resembles one in complex I which suggest more broad universality of the
proposed coupling mechanism.\r\n\r\nIn summary, results presented here helped
to interpret decades of experimental data for complex I and contributed to fundamental
mechanistic understanding of protein function.\r\n"
acknowledged_ssus:
- _id: EM-Fac
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Vladyslav
full_name: Kravchuk, Vladyslav
id: 4D62F2A6-F248-11E8-B48F-1D18A9856A87
last_name: Kravchuk
citation:
ama: Kravchuk V. Structural and mechanistic study of bacterial complex I and its
cyanobacterial ortholog. 2023. doi:10.15479/at:ista:12781
apa: Kravchuk, V. (2023). Structural and mechanistic study of bacterial complex
I and its cyanobacterial ortholog. Institute of Science and Technology Austria.
https://doi.org/10.15479/at:ista:12781
chicago: Kravchuk, Vladyslav. “Structural and Mechanistic Study of Bacterial Complex
I and Its Cyanobacterial Ortholog.” Institute of Science and Technology Austria,
2023. https://doi.org/10.15479/at:ista:12781.
ieee: V. Kravchuk, “Structural and mechanistic study of bacterial complex I and
its cyanobacterial ortholog,” Institute of Science and Technology Austria, 2023.
ista: Kravchuk V. 2023. Structural and mechanistic study of bacterial complex I
and its cyanobacterial ortholog. Institute of Science and Technology Austria.
mla: Kravchuk, Vladyslav. Structural and Mechanistic Study of Bacterial Complex
I and Its Cyanobacterial Ortholog. Institute of Science and Technology Austria,
2023, doi:10.15479/at:ista:12781.
short: V. Kravchuk, Structural and Mechanistic Study of Bacterial Complex I and
Its Cyanobacterial Ortholog, Institute of Science and Technology Austria, 2023.
date_created: 2023-03-31T12:24:42Z
date_published: 2023-03-23T00:00:00Z
date_updated: 2023-08-04T08:54:51Z
day: '23'
ddc:
- '570'
- '572'
degree_awarded: PhD
department:
- _id: GradSch
- _id: LeSa
doi: 10.15479/at:ista:12781
ec_funded: 1
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date_updated: 2023-04-19T14:33:41Z
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file_date_updated: 2023-04-20T07:02:59Z
has_accepted_license: '1'
language:
- iso: eng
month: '03'
oa_version: Published Version
page: '127'
project:
- _id: 238A0A5A-32DE-11EA-91FC-C7463DDC885E
grant_number: '25541'
name: 'Structural characterization of E. coli complex I: an important mechanistic
model'
- _id: 627abdeb-2b32-11ec-9570-ec31a97243d3
call_identifier: H2020
grant_number: '101020697'
name: Structure and mechanism of respiratory chain molecular machines
publication_identifier:
isbn:
- 978-3-99078-029-9
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '12138'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Leonid A
full_name: Sazanov, Leonid A
id: 338D39FE-F248-11E8-B48F-1D18A9856A87
last_name: Sazanov
orcid: 0000-0002-0977-7989
title: Structural and mechanistic study of bacterial complex I and its cyanobacterial
ortholog
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '12802'
abstract:
- lang: eng
text: Little is known about the critical metabolic changes that neural cells have
to undergo during development and how temporary shifts in this program can influence
brain circuitries and behavior. Inspired by the discovery that mutations in SLC7A5,
a transporter of metabolically essential large neutral amino acids (LNAAs), lead
to autism, we employed metabolomic profiling to study the metabolic states of
the cerebral cortex across different developmental stages. We found that the forebrain
undergoes significant metabolic remodeling throughout development, with certain
groups of metabolites showing stage-specific changes, but what are the consequences
of perturbing this metabolic program? By manipulating Slc7a5 expression in neural
cells, we found that the metabolism of LNAAs and lipids are interconnected in
the cortex. Deletion of Slc7a5 in neurons affects the postnatal metabolic state,
leading to a shift in lipid metabolism. Additionally, it causes stage- and cell-type-specific
alterations in neuronal activity patterns, resulting in a long-term circuit dysfunction.
acknowledged_ssus:
- _id: PreCl
- _id: EM-Fac
- _id: Bio
- _id: LifeSc
acknowledgement: We thank A. Freeman and V. Voronin for technical assistance, S. Deixler,
A. Stichelberger, M. Schunn, and the Preclinical Facility for managing our animal
colony. We thank L. Andersen and J. Sonntag, who were involved in generating the
MADM lines. We thank the ISTA LSF Mass Spectrometry Core Facility for assistance
with the proteomic analysis, as well as the ISTA electron microscopy and Imaging
and Optics facility for technical support. Metabolomics LC-MS/MS analysis was performed
by the Metabolomics Facility at Vienna BioCenter Core Facilities (VBCF). We acknowledge
the support of the EMBL Metabolomics Core Facility (MCF) for lipidomics and intracellular
metabolomics mass spectrometry data acquisition and analysis. RNA sequencing was
performed by the Next Generation Sequencing Facility at VBCF. Schematics were generated
using Biorender.com. This work was supported by the Austrian Science Fund (FWF,
DK W1232-B24) and by the European Union’s Horizon 2020 research and innovation program
(ERC) grant 725780 (LinPro) to S.H. and 715508 (REVERSEAUTISM) to G.N.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Lisa
full_name: Knaus, Lisa
id: 3B2ABCF4-F248-11E8-B48F-1D18A9856A87
last_name: Knaus
- first_name: Bernadette
full_name: Basilico, Bernadette
id: 36035796-5ACA-11E9-A75E-7AF2E5697425
last_name: Basilico
orcid: 0000-0003-1843-3173
- first_name: Daniel
full_name: Malzl, Daniel
last_name: Malzl
- first_name: Maria
full_name: Gerykova Bujalkova, Maria
last_name: Gerykova Bujalkova
- first_name: Mateja
full_name: Smogavec, Mateja
last_name: Smogavec
- first_name: Lena A.
full_name: Schwarz, Lena A.
last_name: Schwarz
- first_name: Sarah
full_name: Gorkiewicz, Sarah
id: f141a35d-15a9-11ec-9fb2-fef6becc7b6f
last_name: Gorkiewicz
- first_name: Nicole
full_name: Amberg, Nicole
id: 4CD6AAC6-F248-11E8-B48F-1D18A9856A87
last_name: Amberg
orcid: 0000-0002-3183-8207
- first_name: Florian
full_name: Pauler, Florian
id: 48EA0138-F248-11E8-B48F-1D18A9856A87
last_name: Pauler
orcid: 0000-0002-7462-0048
- first_name: Christian
full_name: Knittl-Frank, Christian
last_name: Knittl-Frank
- first_name: Marianna
full_name: Tassinari, Marianna
id: 7af593f1-d44a-11ed-bf94-a3646a6bb35e
last_name: Tassinari
- first_name: Nuno
full_name: Maulide, Nuno
last_name: Maulide
- first_name: Thomas
full_name: Rülicke, Thomas
last_name: Rülicke
- first_name: Jörg
full_name: Menche, Jörg
last_name: Menche
- first_name: Simon
full_name: Hippenmeyer, Simon
id: 37B36620-F248-11E8-B48F-1D18A9856A87
last_name: Hippenmeyer
orcid: 0000-0003-2279-1061
- first_name: Gaia
full_name: Novarino, Gaia
id: 3E57A680-F248-11E8-B48F-1D18A9856A87
last_name: Novarino
orcid: 0000-0002-7673-7178
citation:
ama: Knaus L, Basilico B, Malzl D, et al. Large neutral amino acid levels tune perinatal
neuronal excitability and survival. Cell. 2023;186(9):1950-1967.e25. doi:10.1016/j.cell.2023.02.037
apa: Knaus, L., Basilico, B., Malzl, D., Gerykova Bujalkova, M., Smogavec, M., Schwarz,
L. A., … Novarino, G. (2023). Large neutral amino acid levels tune perinatal neuronal
excitability and survival. Cell. Elsevier. https://doi.org/10.1016/j.cell.2023.02.037
chicago: Knaus, Lisa, Bernadette Basilico, Daniel Malzl, Maria Gerykova Bujalkova,
Mateja Smogavec, Lena A. Schwarz, Sarah Gorkiewicz, et al. “Large Neutral Amino
Acid Levels Tune Perinatal Neuronal Excitability and Survival.” Cell. Elsevier,
2023. https://doi.org/10.1016/j.cell.2023.02.037.
ieee: L. Knaus et al., “Large neutral amino acid levels tune perinatal neuronal
excitability and survival,” Cell, vol. 186, no. 9. Elsevier, p. 1950–1967.e25,
2023.
ista: Knaus L, Basilico B, Malzl D, Gerykova Bujalkova M, Smogavec M, Schwarz LA,
Gorkiewicz S, Amberg N, Pauler F, Knittl-Frank C, Tassinari M, Maulide N, Rülicke
T, Menche J, Hippenmeyer S, Novarino G. 2023. Large neutral amino acid levels
tune perinatal neuronal excitability and survival. Cell. 186(9), 1950–1967.e25.
mla: Knaus, Lisa, et al. “Large Neutral Amino Acid Levels Tune Perinatal Neuronal
Excitability and Survival.” Cell, vol. 186, no. 9, Elsevier, 2023, p. 1950–1967.e25,
doi:10.1016/j.cell.2023.02.037.
short: L. Knaus, B. Basilico, D. Malzl, M. Gerykova Bujalkova, M. Smogavec, L.A.
Schwarz, S. Gorkiewicz, N. Amberg, F. Pauler, C. Knittl-Frank, M. Tassinari, N.
Maulide, T. Rülicke, J. Menche, S. Hippenmeyer, G. Novarino, Cell 186 (2023) 1950–1967.e25.
date_created: 2023-04-05T08:15:40Z
date_published: 2023-04-27T00:00:00Z
date_updated: 2024-02-07T08:03:32Z
day: '27'
ddc:
- '570'
department:
- _id: SiHi
- _id: GaNo
doi: 10.1016/j.cell.2023.02.037
ec_funded: 1
external_id:
isi:
- '000991468700001'
file:
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file_date_updated: 2023-05-02T09:26:21Z
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intvolume: ' 186'
isi: 1
issue: '9'
keyword:
- General Biochemistry
- Genetics and Molecular Biology
language:
- iso: eng
month: '04'
oa: 1
oa_version: Published Version
page: 1950-1967.e25
project:
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: W1232-B24
name: Molecular Drug Targets
- _id: 260018B0-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '725780'
name: Principles of Neural Stem Cell Lineage Progression in Cerebral Cortex Development
- _id: 25444568-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715508'
name: Probing the Reversibility of Autism Spectrum Disorders by Employing in vivo
and in vitro Models
publication: Cell
publication_identifier:
issn:
- 0092-8674
publication_status: published
publisher: Elsevier
quality_controlled: '1'
related_material:
link:
- description: News on ISTA Website
relation: press_release
url: https://ista.ac.at/en/news/feed-them-or-lose-them/
record:
- id: '13107'
relation: dissertation_contains
status: public
scopus_import: '1'
status: public
title: Large neutral amino acid levels tune perinatal neuronal excitability and survival
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 186
year: '2023'
...
---
_id: '12809'
abstract:
- lang: eng
text: "Understanding the mechanisms of learning and memory formation has always
been one of\r\nthe main goals in neuroscience. Already Pavlov (1927) in his early
days has used his classic\r\nconditioning experiments to study the neural mechanisms
governing behavioral adaptation.\r\nWhat was not known back then was that the
part of the brain that is largely responsible for\r\nthis type of associative
learning is the cerebellum.\r\nSince then, plenty of theories on cerebellar learning
have emerged. Despite their differences,\r\none thing they all have in common
is that learning relies on synaptic and intrinsic plasticity.\r\nThe goal of my
PhD project was to unravel the molecular mechanisms underlying synaptic\r\nplasticity
in two synapses that have been shown to be implicated in motor learning, in an\r\neffort
to understand how learning and memory formation are processed in the cerebellum.\r\nOne
of the earliest and most well-known cerebellar theories postulates that motor
learning\r\nlargely depends on long-term depression at the parallel fiber-Purkinje
cell (PC-PC) synapse.\r\nHowever, the discovery of other types of plasticity in
the cerebellar circuitry, like long-term\r\npotentiation (LTP) at the PC-PC synapse,
potentiation of molecular layer interneurons (MLIs),\r\nand plasticity transfer
from the cortex to the cerebellar/ vestibular nuclei has increased the\r\npopularity
of the idea that multiple sites of plasticity might be involved in learning.\r\nStill
a lot remains unknown about the molecular mechanisms responsible for these types
of\r\nplasticity and whether they occur during physiological learning.\r\nIn the
first part of this thesis we have analyzed the variation and nanodistribution
of voltagegated calcium channels (VGCCs) and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic
acid\r\ntype glutamate receptors (AMPARs) on the parallel fiber-Purkinje cell
synapse after vestibuloocular reflex phase reversal adaptation, a behavior that
has been suggested to rely on PF-PC\r\nLTP. We have found that on the last day
of adaptation there is no learning trace in form of\r\nVGCCs nor AMPARs variation
at the PF-PC synapse, but instead a decrease in the number of\r\nPF-PC synapses.
These data seem to support the view that learning is only stored in the\r\ncerebellar
cortex in an initial learning phase, being transferred later to the vestibular
nuclei.\r\nNext, we have studied the role of MLIs in motor learning using a relatively
simple and well characterized behavioral paradigm – horizontal optokinetic reflex
(HOKR) adaptation. We\r\nhave found behavior-induced MLI potentiation in form
of release probability increase that\r\ncould be explained by the increase of
VGCCs at the presynaptic side. Our results strengthen\r\nthe idea of distributed
cerebellar plasticity contributing to learning and provide a novel\r\nmechanism
for release probability increase. "
acknowledged_ssus:
- _id: EM-Fac
- _id: Bio
- _id: PreCl
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Catarina
full_name: Alcarva, Catarina
id: 3A96634C-F248-11E8-B48F-1D18A9856A87
last_name: Alcarva
citation:
ama: 'Alcarva C. Plasticity in the cerebellum: What molecular mechanisms are behind
physiological learning. 2023. doi:10.15479/at:ista:12809'
apa: 'Alcarva, C. (2023). Plasticity in the cerebellum: What molecular mechanisms
are behind physiological learning. Institute of Science and Technology Austria.
https://doi.org/10.15479/at:ista:12809'
chicago: 'Alcarva, Catarina. “Plasticity in the Cerebellum: What Molecular Mechanisms
Are behind Physiological Learning.” Institute of Science and Technology Austria,
2023. https://doi.org/10.15479/at:ista:12809.'
ieee: 'C. Alcarva, “Plasticity in the cerebellum: What molecular mechanisms are
behind physiological learning,” Institute of Science and Technology Austria, 2023.'
ista: 'Alcarva C. 2023. Plasticity in the cerebellum: What molecular mechanisms
are behind physiological learning. Institute of Science and Technology Austria.'
mla: 'Alcarva, Catarina. Plasticity in the Cerebellum: What Molecular Mechanisms
Are behind Physiological Learning. Institute of Science and Technology Austria,
2023, doi:10.15479/at:ista:12809.'
short: 'C. Alcarva, Plasticity in the Cerebellum: What Molecular Mechanisms Are
behind Physiological Learning, Institute of Science and Technology Austria, 2023.'
date_created: 2023-04-06T07:54:09Z
date_published: 2023-04-06T00:00:00Z
date_updated: 2023-04-26T12:16:56Z
day: '06'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: RySh
doi: 10.15479/at:ista:12809
file:
- access_level: closed
checksum: 35b5997d2b0acb461f9d33d073da0df5
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creator: cchlebak
date_created: 2023-04-07T06:16:06Z
date_updated: 2023-04-07T06:16:06Z
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file_name: Thesis_CatarinaAlcarva_final pdfA.pdf
file_size: 9881969
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creator: cchlebak
date_created: 2023-04-07T06:17:11Z
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date_created: 2023-04-07T06:18:05Z
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file_id: '12816'
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file_date_updated: 2023-04-07T06:18:05Z
has_accepted_license: '1'
language:
- iso: eng
month: '04'
oa_version: Published Version
page: '115'
project:
- _id: 267DFB90-B435-11E9-9278-68D0E5697425
name: 'Plasticity in the cerebellum: Which molecular mechanisms are behind physiological
learning?'
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
status: public
supervisor:
- first_name: Ryuichi
full_name: Shigemoto, Ryuichi
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
title: 'Plasticity in the cerebellum: What molecular mechanisms are behind physiological
learning'
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '12832'
abstract:
- lang: eng
text: The development of cost-effective, high-activity and stable bifunctional catalysts
for the oxygen reduction and evolution reactions (ORR/OER) is essential for zinc–air
batteries (ZABs) to reach the market. Such catalysts must contain multiple adsorption/reaction
sites to cope with the high demands of reversible oxygen electrodes. Herein, we
propose a high entropy alloy (HEA) based on relatively abundant elements as a
bifunctional ORR/OER catalyst. More specifically, we detail the synthesis of a
CrMnFeCoNi HEA through a low-temperature solution-based approach. Such HEA displays
superior OER performance with an overpotential of 265 mV at a current density
of 10 mA/cm2, and a 37.9 mV/dec Tafel slope, well above the properties of a standard
commercial catalyst based on RuO2. This high performance is partially explained
by the presence of twinned defects, the incidence of large lattice distortions,
and the electronic synergy between the different components, being Cr key to decreasing
the energy barrier of the OER rate-determining step. CrMnFeCoNi also displays
superior ORR performance with a half-potential of 0.78 V and an onset potential
of 0.88 V, comparable with commercial Pt/C. The potential gap (Egap) between the
OER overpotential and the ORR half-potential of CrMnFeCoNi is just 0.734 V. Taking
advantage of these outstanding properties, ZABs are assembled using the CrMnFeCoNi
HEA as air cathode and a zinc foil as the anode. The assembled cells provide an
open-circuit voltage of 1.489 V, i.e. 90% of its theoretical limit (1.66 V), a
peak power density of 116.5 mW/cm2, and a specific capacity of 836 mAh/g that
stays stable for more than 10 days of continuous cycling, i.e. 720 cycles @ 8
mA/cm2 and 16.6 days of continuous cycling, i.e. 1200 cycles @ 5 mA/cm2.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: 'The authors thank the support from the project COMBENERGY, PID2019-105490RB-C32,
from the Spanish Ministerio de Ciencia e Innovación. The authors acknowledge funding
from Generalitat de Catalunya 2021 SGR 01581 and 2021 SGR 00457. ICN2 acknowledges
the Severo Ochoa program from Spanish MINECO (Grant No. SEV-2017-0706). IREC and
ICN2 are funded by the CERCA Programme from the Generalitat de Catalunya. ICN2 is
supported by the Severo Ochoa program from Spanish MCIN / AEI (Grant No.: CEX2021-001214-S).
ICN2 acknowledges funding from Generalitat de Catalunya 2017 SGR 327. This study
was supported by MCIN with funding from European Union NextGenerationEU (PRTR-C17.I1)
and Generalitat de Catalunya. The authors thank the support from the project NANOGEN
(PID2020-116093RB-C43), funded by MCIN/ AEI/10.13039/501100011033/ and by “ERDF
A way of making Europe”, by the “European Union”. Part of the present work has been
performed in the frameworks of Universitat de Barcelona Nanoscience PhD program.
This research was supported by the Scientific Service Units (SSU) of IST Austria
through resources provided by Electron Microscopy Facility (EMF). S. Lee. and M.
Ibáñez acknowledge funding by IST Austria and the Werner Siemens Foundation. J.
Llorca is a Serra Húnter Fellow and is grateful to ICREA Academia program and projects
MICINN/FEDER PID2021-124572OB-C31 and GC 2017 SGR 128. L. L.Yang thanks the China
Scholarship Council (CSC) for the scholarship support (202008130132). Z. F. Liang
acknowledges funding from MINECO SO-FPT PhD grant (SEV-2013-0295-17-1). J. W. Chen
and Y. Xu thank the support from The Key Research and Development Program of Hebei
Province (No. 20314305D) and the cooperative scientific research project of the
“Chunhui Program” of the Ministry of Education (2018-7). This work was supported
by the Natural Science Foundation of Sichuan province (NSFSC) and funded by the
Science and Technology Department of Sichuan Province (2022NSFSC1229).'
article_processing_charge: No
article_type: original
author:
- first_name: Ren
full_name: He, Ren
last_name: He
- first_name: Linlin
full_name: Yang, Linlin
last_name: Yang
- first_name: Yu
full_name: Zhang, Yu
last_name: Zhang
- first_name: Xiang
full_name: Wang, Xiang
last_name: Wang
- first_name: Seungho
full_name: Lee, Seungho
id: BB243B88-D767-11E9-B658-BC13E6697425
last_name: Lee
orcid: 0000-0002-6962-8598
- first_name: Ting
full_name: Zhang, Ting
last_name: Zhang
- first_name: Lingxiao
full_name: Li, Lingxiao
last_name: Li
- first_name: Zhifu
full_name: Liang, Zhifu
last_name: Liang
- first_name: Jingwei
full_name: Chen, Jingwei
last_name: Chen
- first_name: Junshan
full_name: Li, Junshan
last_name: Li
- first_name: Ahmad
full_name: Ostovari Moghaddam, Ahmad
last_name: Ostovari Moghaddam
- first_name: Jordi
full_name: Llorca, Jordi
last_name: Llorca
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Jordi
full_name: Arbiol, Jordi
last_name: Arbiol
- first_name: Ying
full_name: Xu, Ying
last_name: Xu
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: He R, Yang L, Zhang Y, et al. A CrMnFeCoNi high entropy alloy boosting oxygen
evolution/reduction reactions and zinc-air battery performance. Energy Storage
Materials. 2023;58(4):287-298. doi:10.1016/j.ensm.2023.03.022
apa: He, R., Yang, L., Zhang, Y., Wang, X., Lee, S., Zhang, T., … Cabot, A. (2023).
A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction reactions
and zinc-air battery performance. Energy Storage Materials. Elsevier. https://doi.org/10.1016/j.ensm.2023.03.022
chicago: He, Ren, Linlin Yang, Yu Zhang, Xiang Wang, Seungho Lee, Ting Zhang, Lingxiao
Li, et al. “A CrMnFeCoNi High Entropy Alloy Boosting Oxygen Evolution/Reduction
Reactions and Zinc-Air Battery Performance.” Energy Storage Materials.
Elsevier, 2023. https://doi.org/10.1016/j.ensm.2023.03.022.
ieee: R. He et al., “A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction
reactions and zinc-air battery performance,” Energy Storage Materials,
vol. 58, no. 4. Elsevier, pp. 287–298, 2023.
ista: He R, Yang L, Zhang Y, Wang X, Lee S, Zhang T, Li L, Liang Z, Chen J, Li J,
Ostovari Moghaddam A, Llorca J, Ibáñez M, Arbiol J, Xu Y, Cabot A. 2023. A CrMnFeCoNi
high entropy alloy boosting oxygen evolution/reduction reactions and zinc-air
battery performance. Energy Storage Materials. 58(4), 287–298.
mla: He, Ren, et al. “A CrMnFeCoNi High Entropy Alloy Boosting Oxygen Evolution/Reduction
Reactions and Zinc-Air Battery Performance.” Energy Storage Materials,
vol. 58, no. 4, Elsevier, 2023, pp. 287–98, doi:10.1016/j.ensm.2023.03.022.
short: R. He, L. Yang, Y. Zhang, X. Wang, S. Lee, T. Zhang, L. Li, Z. Liang, J.
Chen, J. Li, A. Ostovari Moghaddam, J. Llorca, M. Ibáñez, J. Arbiol, Y. Xu, A.
Cabot, Energy Storage Materials 58 (2023) 287–298.
date_created: 2023-04-16T22:01:07Z
date_published: 2023-04-01T00:00:00Z
date_updated: 2023-08-01T14:08:02Z
day: '01'
department:
- _id: MaIb
doi: 10.1016/j.ensm.2023.03.022
external_id:
isi:
- '000967601700001'
intvolume: ' 58'
isi: 1
issue: '4'
language:
- iso: eng
month: '04'
oa_version: None
page: 287-298
project:
- _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A
name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of
Semiconductors for Waste Heat Recovery'
publication: Energy Storage Materials
publication_identifier:
eissn:
- 2405-8297
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: A CrMnFeCoNi high entropy alloy boosting oxygen evolution/reduction reactions
and zinc-air battery performance
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 58
year: '2023'
...
---
_id: '12885'
abstract:
- lang: eng
text: 'High-performance semiconductors rely upon precise control of heat and charge
transport. This can be achieved by precisely engineering defects in polycrystalline
solids. There are multiple approaches to preparing such polycrystalline semiconductors,
and the transformation of solution-processed colloidal nanoparticles is appealing
because colloidal nanoparticles combine low cost with structural and compositional
tunability along with rich surface chemistry. However, the multiple processes
from nanoparticle synthesis to the final bulk nanocomposites are very complex.
They involve nanoparticle purification, post-synthetic modifications, and finally
consolidation (thermal treatments and densification). All these properties dictate
the final material’s composition and microstructure, ultimately affecting its
functional properties. This thesis explores the synthesis, surface chemistry and
consolidation of colloidal semiconductor nanoparticles into dense solids. In particular,
the transformations that take place during these processes, and their effect on
the material’s transport properties are evaluated. '
acknowledged_ssus:
- _id: EM-Fac
- _id: NanoFab
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Mariano
full_name: Calcabrini, Mariano
id: 45D7531A-F248-11E8-B48F-1D18A9856A87
last_name: Calcabrini
orcid: 0000-0003-4566-5877
citation:
ama: 'Calcabrini M. Nanoparticle-based semiconductor solids: From synthesis to consolidation.
2023. doi:10.15479/at:ista:12885'
apa: 'Calcabrini, M. (2023). Nanoparticle-based semiconductor solids: From synthesis
to consolidation. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:12885'
chicago: 'Calcabrini, Mariano. “Nanoparticle-Based Semiconductor Solids: From Synthesis
to Consolidation.” Institute of Science and Technology Austria, 2023. https://doi.org/10.15479/at:ista:12885.'
ieee: 'M. Calcabrini, “Nanoparticle-based semiconductor solids: From synthesis to
consolidation,” Institute of Science and Technology Austria, 2023.'
ista: 'Calcabrini M. 2023. Nanoparticle-based semiconductor solids: From synthesis
to consolidation. Institute of Science and Technology Austria.'
mla: 'Calcabrini, Mariano. Nanoparticle-Based Semiconductor Solids: From Synthesis
to Consolidation. Institute of Science and Technology Austria, 2023, doi:10.15479/at:ista:12885.'
short: 'M. Calcabrini, Nanoparticle-Based Semiconductor Solids: From Synthesis to
Consolidation, Institute of Science and Technology Austria, 2023.'
date_created: 2023-05-02T07:58:57Z
date_published: 2023-04-28T00:00:00Z
date_updated: 2023-08-14T07:25:26Z
day: '28'
ddc:
- '546'
- '541'
degree_awarded: PhD
department:
- _id: GradSch
- _id: MaIb
doi: 10.15479/at:ista:12885
ec_funded: 1
file:
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date_updated: 2023-05-02T07:42:45Z
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file_date_updated: 2023-05-02T07:43:18Z
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language:
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month: '04'
oa: 1
oa_version: Published Version
page: '82'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication_identifier:
isbn:
- 978-3-99078-028-2
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '10806'
relation: part_of_dissertation
status: public
- id: '10042'
relation: part_of_dissertation
status: public
- id: '12237'
relation: part_of_dissertation
status: public
- id: '9118'
relation: part_of_dissertation
status: public
- id: '10123'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
title: 'Nanoparticle-based semiconductor solids: From synthesis to consolidation'
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '13107'
abstract:
- lang: eng
text: "Within the human body, the brain exhibits the highest rate of energy consumption
amongst all organs, with the majority of generated ATP being utilized to sustain
neuronal activity. Therefore, the metabolism of the mature cerebral cortex is
geared towards preserving metabolic homeostasis whilst generating significant
amounts of energy. This requires a precise interplay between diverse metabolic
pathways, spanning from a tissue-wide scale to the level of individual neurons.
Disturbances to this delicate metabolic equilibrium, such as those resulting from
maternal malnutrition\r\nor mutations affecting metabolic enzymes, often result
in neuropathological variants of neurodevelopment. For instance, mutations in
SLC7A5, a transporter of metabolically essential large neutral amino acids (LNAAs),
have been associated with autism and microcephaly. However, despite recent progress
in the field, the extent of metabolic restructuring that occurs within the developing
brain and the corresponding alterations in nutrient demands during various critical
periods remain largely unknown. To investigate this, we performed metabolomic
profiling of the murine cerebral cortex to characterize the metabolic state of
the forebrain at different developmental stages. We found that the developing
cortex undergoes substantial metabolic reprogramming, with specific sets of metabolites
displaying stage-specific changes. According to our observations, we determined
a distinct temporal period in postnatal development during which the cortex displays
heightened reliance on LNAAs. Hence, using a conditional knock-out mouse model,
we deleted Slc7a5 in neural cells, allowing us to monitor the impact of a perturbed
neuronal metabolic state across multiple developmental stages of corticogenesis.
We found that manipulating the levels of essential LNAAs in cortical neurons in
vivo affects one particular perinatal developmental period critical for cortical
network refinement. Abnormally low intracellular LNAA levels result in cell-autonomous
alterations in neuronal lipid metabolism, excitability, and survival during this
particular time window. Although most of the effects of Slc7a5 deletion on neuronal
physiology are transient, derailment of these processes during this brief but
crucial window leads to long-term circuit dysfunction in mice. In conclusion,
out data indicate that the cerebral cortex undergoes significant metabolic reorganization
during development. This process involves the intricate integration of multiple
metabolic pathways to ensure optimal neuronal function throughout different developmental
stages. Our findings offer a paradigm for understanding how neurons synchronize
the expression of nutrient-related genes with their activity to allow proper brain
maturation. Further, our results demonstrate that disruptions in these precisely
calibrated metabolic processes during critical periods of brain development may
result in neuropathological outcomes in mice and in humans."
acknowledged_ssus:
- _id: PreCl
- _id: Bio
- _id: EM-Fac
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Lisa
full_name: Knaus, Lisa
id: 3B2ABCF4-F248-11E8-B48F-1D18A9856A87
last_name: Knaus
citation:
ama: 'Knaus L. The metabolism of the developing brain : How large neutral amino
acids modulate perinatal neuronal excitability and survival. 2023. doi:10.15479/at:ista:13107'
apa: 'Knaus, L. (2023). The metabolism of the developing brain : How large neutral
amino acids modulate perinatal neuronal excitability and survival. Institute
of Science and Technology Austria. https://doi.org/10.15479/at:ista:13107'
chicago: 'Knaus, Lisa. “The Metabolism of the Developing Brain : How Large Neutral
Amino Acids Modulate Perinatal Neuronal Excitability and Survival.” Institute
of Science and Technology Austria, 2023. https://doi.org/10.15479/at:ista:13107.'
ieee: 'L. Knaus, “The metabolism of the developing brain : How large neutral amino
acids modulate perinatal neuronal excitability and survival,” Institute of Science
and Technology Austria, 2023.'
ista: 'Knaus L. 2023. The metabolism of the developing brain : How large neutral
amino acids modulate perinatal neuronal excitability and survival. Institute of
Science and Technology Austria.'
mla: 'Knaus, Lisa. The Metabolism of the Developing Brain : How Large Neutral
Amino Acids Modulate Perinatal Neuronal Excitability and Survival. Institute
of Science and Technology Austria, 2023, doi:10.15479/at:ista:13107.'
short: 'L. Knaus, The Metabolism of the Developing Brain : How Large Neutral Amino
Acids Modulate Perinatal Neuronal Excitability and Survival, Institute of Science
and Technology Austria, 2023.'
date_created: 2023-06-01T09:05:24Z
date_published: 2023-05-31T00:00:00Z
date_updated: 2024-02-07T08:03:33Z
day: '31'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: GaNo
doi: 10.15479/at:ista:13107
ec_funded: 1
file:
- access_level: closed
checksum: 4b69a4ac0bbf4163d59c0b58dcb4f2c3
content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
creator: lknaus
date_created: 2023-06-01T13:48:41Z
date_updated: 2023-06-01T13:48:41Z
file_id: '13112'
file_name: Thesis_Lisa Knaus_approved_final.docx
file_size: 12991551
relation: source_file
- access_level: open_access
checksum: 6903d152aa01181d87a696085af31c83
content_type: application/pdf
creator: lknaus
date_created: 2023-06-02T09:47:29Z
date_updated: 2023-06-07T08:41:49Z
file_id: '13114'
file_name: Thesis_Lisa Knaus_approved_final_pdfa2b.pdf
file_size: 9309015
relation: main_file
file_date_updated: 2023-06-07T08:41:49Z
has_accepted_license: '1'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: '147'
project:
- _id: 25444568-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '715508'
name: Probing the Reversibility of Autism Spectrum Disorders by Employing in vivo
and in vitro Models
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: W1232-B24
name: Molecular Drug Targets
publication_identifier:
issn:
- 2663 - 337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '12802'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Gaia
full_name: Novarino, Gaia
id: 3E57A680-F248-11E8-B48F-1D18A9856A87
last_name: Novarino
orcid: 0000-0002-7673-7178
title: 'The metabolism of the developing brain : How large neutral amino acids modulate
perinatal neuronal excitability and survival'
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '13202'
abstract:
- lang: eng
text: Phosphatidylinositol-4,5-bisphosphate (PI(4,5)P2) plays an essential role
in neuronal activities through interaction with various proteins involved in signaling
at membranes. However, the distribution pattern of PI(4,5)P2 and the association
with these proteins on the neuronal cell membranes remain elusive. In this study,
we established a method for visualizing PI(4,5)P2 by SDS-digested freeze-fracture
replica labeling (SDS-FRL) to investigate the quantitative nanoscale distribution
of PI(4,5)P2 in cryo-fixed brain. We demonstrate that PI(4,5)P2 forms tiny clusters
with a mean size of ∼1000 nm2 rather than randomly distributed in cerebellar neuronal
membranes in male C57BL/6J mice. These clusters show preferential accumulation
in specific membrane compartments of different cell types, in particular, in Purkinje
cell (PC) spines and granule cell (GC) presynaptic active zones. Furthermore,
we revealed extensive association of PI(4,5)P2 with CaV2.1 and GIRK3 across different
membrane compartments, whereas its association with mGluR1α was compartment specific.
These results suggest that our SDS-FRL method provides valuable insights into
the physiological functions of PI(4,5)P2 in neurons.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: This work was supported by The Institute of Science and Technology
(IST) Austria, the European Union's Horizon 2020 Research and Innovation Program
under the Marie Skłodowska-Curie Grant Agreement No. 793482 (to K.E.) and by the
European Research Council (ERC) Grant Agreement No. 694539 (to R.S.). We thank Nicoleta
Condruz (IST Austria, Klosterneuburg, Austria) for technical assistance with sample
preparation, the Electron Microscopy Facility of IST Austria (Klosterneuburg, Austria)
for technical support with EM works, Natalia Baranova (University of Vienna, Vienna,
Austria) and Martin Loose (IST Austria, Klosterneuburg, Austria) for advice on liposome
preparation, and Yugo Fukazawa (University of Fukui, Fukui, Japan) for comments.
article_processing_charge: No
article_type: original
author:
- first_name: Kohgaku
full_name: Eguchi, Kohgaku
id: 2B7846DC-F248-11E8-B48F-1D18A9856A87
last_name: Eguchi
orcid: 0000-0002-6170-2546
- first_name: Elodie
full_name: Le Monnier, Elodie
id: 3B59276A-F248-11E8-B48F-1D18A9856A87
last_name: Le Monnier
- first_name: Ryuichi
full_name: Shigemoto, Ryuichi
id: 499F3ABC-F248-11E8-B48F-1D18A9856A87
last_name: Shigemoto
orcid: 0000-0001-8761-9444
citation:
ama: Eguchi K, Le Monnier E, Shigemoto R. Nanoscale phosphoinositide distribution
on cell membranes of mouse cerebellar neurons. The Journal of Neuroscience.
2023;43(23):4197-4216. doi:10.1523/JNEUROSCI.1514-22.2023
apa: Eguchi, K., Le Monnier, E., & Shigemoto, R. (2023). Nanoscale phosphoinositide
distribution on cell membranes of mouse cerebellar neurons. The Journal of
Neuroscience. Society for Neuroscience. https://doi.org/10.1523/JNEUROSCI.1514-22.2023
chicago: Eguchi, Kohgaku, Elodie Le Monnier, and Ryuichi Shigemoto. “Nanoscale Phosphoinositide
Distribution on Cell Membranes of Mouse Cerebellar Neurons.” The Journal of
Neuroscience. Society for Neuroscience, 2023. https://doi.org/10.1523/JNEUROSCI.1514-22.2023.
ieee: K. Eguchi, E. Le Monnier, and R. Shigemoto, “Nanoscale phosphoinositide distribution
on cell membranes of mouse cerebellar neurons,” The Journal of Neuroscience,
vol. 43, no. 23. Society for Neuroscience, pp. 4197–4216, 2023.
ista: Eguchi K, Le Monnier E, Shigemoto R. 2023. Nanoscale phosphoinositide distribution
on cell membranes of mouse cerebellar neurons. The Journal of Neuroscience. 43(23),
4197–4216.
mla: Eguchi, Kohgaku, et al. “Nanoscale Phosphoinositide Distribution on Cell Membranes
of Mouse Cerebellar Neurons.” The Journal of Neuroscience, vol. 43, no.
23, Society for Neuroscience, 2023, pp. 4197–216, doi:10.1523/JNEUROSCI.1514-22.2023.
short: K. Eguchi, E. Le Monnier, R. Shigemoto, The Journal of Neuroscience 43 (2023)
4197–4216.
date_created: 2023-07-09T22:01:12Z
date_published: 2023-06-07T00:00:00Z
date_updated: 2023-10-18T07:12:47Z
day: '07'
ddc:
- '570'
department:
- _id: RySh
doi: 10.1523/JNEUROSCI.1514-22.2023
ec_funded: 1
external_id:
isi:
- '001020132100005'
pmid:
- '37160366'
file:
- access_level: open_access
checksum: 70b2141870e0bf1c94fd343e18fdbc32
content_type: application/pdf
creator: alisjak
date_created: 2023-07-10T09:04:58Z
date_updated: 2023-07-10T09:04:58Z
file_id: '13205'
file_name: 2023_JN_Eguchi.pdf
file_size: 7794425
relation: main_file
success: 1
file_date_updated: 2023-07-10T09:04:58Z
has_accepted_license: '1'
intvolume: ' 43'
isi: 1
issue: '23'
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
page: 4197-4216
pmid: 1
project:
- _id: 2659CC84-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '793482'
name: 'Ultrastructural analysis of phosphoinositides in nerve terminals: distribution,
dynamics and physiological roles in synaptic transmission'
- _id: 25CA28EA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '694539'
name: 'In situ analysis of single channel subunit composition in neurons: physiological
implication in synaptic plasticity and behaviour'
publication: The Journal of Neuroscience
publication_identifier:
eissn:
- 1529-2401
issn:
- 0270-6474
publication_status: published
publisher: Society for Neuroscience
quality_controlled: '1'
scopus_import: '1'
status: public
title: Nanoscale phosphoinositide distribution on cell membranes of mouse cerebellar
neurons
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 43
year: '2023'
...
---
_id: '13968'
abstract:
- lang: eng
text: The use of multimodal readout mechanisms next to label-free real-time monitoring
of biomolecular interactions can provide valuable insight into surface-based reaction
mechanisms. To this end, the combination of an electrolyte-gated field-effect
transistor (EG-FET) with a fiber optic-coupled surface plasmon resonance (FO-SPR)
probe serving as gate electrode has been investigated to deconvolute surface mass
and charge density variations associated to surface reactions. However, applying
an electrochemical potential on such gold-coated FO-SPR gate electrodes can induce
gradual morphological changes of the thin gold film, leading to an irreversible
blue-shift of the SPR wavelength and a substantial signal drift. We show that
mild annealing leads to optical and electronic signal stabilization (20-fold lower
signal drift than as-sputtered fiber optic gates) and improved overall analytical
performance characteristics. The thermal treatment prevents morphological changes
of the thin gold-film occurring during operation, hence providing reliable and
stable data immediately upon gate voltage application. Thus, the readout output
of both transducing principles, the optical FO-SPR and electronic EG-FET, stays
constant throughout the whole sensing time-window and the long-term effect of
thermal treatment is also improved, providing stable signals even after 1 year
of storage. Annealing should therefore be considered a necessary modification
for applying fiber optic gate electrodes in real-time multimodal investigations
of surface reactions at the solid-liquid interface.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: "This project has received funding from the European Union’s Horizon
2020 Research and Innovation Programme under the Marie Skłodowska-Curie grant agreement
No. 813863–BORGES. We further thank the office of the Federal Government of Lower
Austria, K3-Group–Culture, Science and Education, for their financial support as
part of the project “Responsive Wound Dressing”. We gratefully acknowledge the financial
support from the Austrian Research Promotion Agency (FFG; 888067).\r\nWe thank the
Electron Microscopy Facility at IST Austria for their support with sputter coating
the FO tips and Bernhard Pichler from AIT for software development to facilitate
data evaluation."
article_number: '1202132'
article_processing_charge: Yes
article_type: original
author:
- first_name: Roger
full_name: Hasler, Roger
last_name: Hasler
- first_name: Marie Helene
full_name: Steger-Polt, Marie Helene
last_name: Steger-Polt
- first_name: Ciril
full_name: Reiner-Rozman, Ciril
last_name: Reiner-Rozman
- first_name: Stefan
full_name: Fossati, Stefan
last_name: Fossati
- first_name: Seungho
full_name: Lee, Seungho
id: BB243B88-D767-11E9-B658-BC13E6697425
last_name: Lee
orcid: 0000-0002-6962-8598
- first_name: Patrik
full_name: Aspermair, Patrik
last_name: Aspermair
- first_name: Christoph
full_name: Kleber, Christoph
last_name: Kleber
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Jakub
full_name: Dostalek, Jakub
last_name: Dostalek
- first_name: Wolfgang
full_name: Knoll, Wolfgang
last_name: Knoll
citation:
ama: 'Hasler R, Steger-Polt MH, Reiner-Rozman C, et al. Optical and electronic signal
stabilization of plasmonic fiber optic gate electrodes: Towards improved real-time
dual-mode biosensing. Frontiers in Physics. 2023;11. doi:10.3389/fphy.2023.1202132'
apa: 'Hasler, R., Steger-Polt, M. H., Reiner-Rozman, C., Fossati, S., Lee, S., Aspermair,
P., … Knoll, W. (2023). Optical and electronic signal stabilization of plasmonic
fiber optic gate electrodes: Towards improved real-time dual-mode biosensing.
Frontiers in Physics. Frontiers. https://doi.org/10.3389/fphy.2023.1202132'
chicago: 'Hasler, Roger, Marie Helene Steger-Polt, Ciril Reiner-Rozman, Stefan Fossati,
Seungho Lee, Patrik Aspermair, Christoph Kleber, Maria Ibáñez, Jakub Dostalek,
and Wolfgang Knoll. “Optical and Electronic Signal Stabilization of Plasmonic
Fiber Optic Gate Electrodes: Towards Improved Real-Time Dual-Mode Biosensing.”
Frontiers in Physics. Frontiers, 2023. https://doi.org/10.3389/fphy.2023.1202132.'
ieee: 'R. Hasler et al., “Optical and electronic signal stabilization of
plasmonic fiber optic gate electrodes: Towards improved real-time dual-mode biosensing,”
Frontiers in Physics, vol. 11. Frontiers, 2023.'
ista: 'Hasler R, Steger-Polt MH, Reiner-Rozman C, Fossati S, Lee S, Aspermair P,
Kleber C, Ibáñez M, Dostalek J, Knoll W. 2023. Optical and electronic signal stabilization
of plasmonic fiber optic gate electrodes: Towards improved real-time dual-mode
biosensing. Frontiers in Physics. 11, 1202132.'
mla: 'Hasler, Roger, et al. “Optical and Electronic Signal Stabilization of Plasmonic
Fiber Optic Gate Electrodes: Towards Improved Real-Time Dual-Mode Biosensing.”
Frontiers in Physics, vol. 11, 1202132, Frontiers, 2023, doi:10.3389/fphy.2023.1202132.'
short: R. Hasler, M.H. Steger-Polt, C. Reiner-Rozman, S. Fossati, S. Lee, P. Aspermair,
C. Kleber, M. Ibáñez, J. Dostalek, W. Knoll, Frontiers in Physics 11 (2023).
date_created: 2023-08-06T22:01:11Z
date_published: 2023-07-14T00:00:00Z
date_updated: 2023-12-13T12:04:10Z
day: '14'
ddc:
- '530'
department:
- _id: MaIb
doi: 10.3389/fphy.2023.1202132
external_id:
isi:
- '001038636400001'
file:
- access_level: open_access
checksum: fb36dda665e57bab006a000bf0faacd5
content_type: application/pdf
creator: dernst
date_created: 2023-08-07T07:48:11Z
date_updated: 2023-08-07T07:48:11Z
file_id: '13978'
file_name: 2023_FrontiersPhysics_Hasler.pdf
file_size: 2421758
relation: main_file
success: 1
file_date_updated: 2023-08-07T07:48:11Z
has_accepted_license: '1'
intvolume: ' 11'
isi: 1
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: Frontiers in Physics
publication_identifier:
eissn:
- 2296-424X
publication_status: published
publisher: Frontiers
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Optical and electronic signal stabilization of plasmonic fiber optic gate
electrodes: Towards improved real-time dual-mode biosensing'
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2023'
...
---
_id: '14040'
abstract:
- lang: eng
text: Robust oxygenic photosynthesis requires a suite of accessory factors to ensure
efficient assembly and repair of the oxygen-evolving photosystem two (PSII) complex.
The highly conserved Ycf48 assembly factor binds to the newly synthesized D1 reaction
center polypeptide and promotes the initial steps of PSII assembly, but its binding
site is unclear. Here we use cryo-electron microscopy to determine the structure
of a cyanobacterial PSII D1/D2 reaction center assembly complex with Ycf48 attached.
Ycf48, a 7-bladed beta propeller, binds to the amino-acid residues of D1 that
ultimately ligate the water-oxidising Mn4CaO5 cluster, thereby preventing the
premature binding of Mn2+ and Ca2+ ions and protecting the site from damage. Interactions
with D2 help explain how Ycf48 promotes assembly of the D1/D2 complex. Overall,
our work provides valuable insights into the early stages of PSII assembly and
the structural changes that create the binding site for the Mn4CaO5 cluster.
acknowledged_ssus:
- _id: EM-Fac
- _id: LifeSc
- _id: ScienComp
acknowledgement: P.J.N. and J.W.M. are grateful for the support of the Biotechnology
& Biological Sciences Research Council (awards BB/L003260/1 and BB/P00931X/1). J.
Knoppová, R.S. and J. Komenda were supported by the Czech Science Foundation (project
19-29225X) and by ERC project Photoredesign (no. 854126) and L.A.S. was supported
by the Scientific Service Units (SSU) of IST Austria through resources provided
by the Electron Microscopy Facility (EMF), the Life Science Facility (LSF) and the
IST high-performance computing cluster.
article_number: '4681'
article_processing_charge: Yes
article_type: original
author:
- first_name: Ziyu
full_name: Zhao, Ziyu
last_name: Zhao
- first_name: Irene
full_name: Vercellino, Irene
id: 3ED6AF16-F248-11E8-B48F-1D18A9856A87
last_name: Vercellino
orcid: 0000-0001-5618-3449
- first_name: Jana
full_name: Knoppová, Jana
last_name: Knoppová
- first_name: Roman
full_name: Sobotka, Roman
last_name: Sobotka
- first_name: James W.
full_name: Murray, James W.
last_name: Murray
- first_name: Peter J.
full_name: Nixon, Peter J.
last_name: Nixon
- first_name: Leonid A
full_name: Sazanov, Leonid A
id: 338D39FE-F248-11E8-B48F-1D18A9856A87
last_name: Sazanov
orcid: 0000-0002-0977-7989
- first_name: Josef
full_name: Komenda, Josef
last_name: Komenda
citation:
ama: Zhao Z, Vercellino I, Knoppová J, et al. The Ycf48 accessory factor occupies
the site of the oxygen-evolving manganese cluster during photosystem II biogenesis.
Nature Communications. 2023;14. doi:10.1038/s41467-023-40388-6
apa: Zhao, Z., Vercellino, I., Knoppová, J., Sobotka, R., Murray, J. W., Nixon,
P. J., … Komenda, J. (2023). The Ycf48 accessory factor occupies the site of the
oxygen-evolving manganese cluster during photosystem II biogenesis. Nature
Communications. Springer Nature. https://doi.org/10.1038/s41467-023-40388-6
chicago: Zhao, Ziyu, Irene Vercellino, Jana Knoppová, Roman Sobotka, James W. Murray,
Peter J. Nixon, Leonid A Sazanov, and Josef Komenda. “The Ycf48 Accessory Factor
Occupies the Site of the Oxygen-Evolving Manganese Cluster during Photosystem
II Biogenesis.” Nature Communications. Springer Nature, 2023. https://doi.org/10.1038/s41467-023-40388-6.
ieee: Z. Zhao et al., “The Ycf48 accessory factor occupies the site of the
oxygen-evolving manganese cluster during photosystem II biogenesis,” Nature
Communications, vol. 14. Springer Nature, 2023.
ista: Zhao Z, Vercellino I, Knoppová J, Sobotka R, Murray JW, Nixon PJ, Sazanov
LA, Komenda J. 2023. The Ycf48 accessory factor occupies the site of the oxygen-evolving
manganese cluster during photosystem II biogenesis. Nature Communications. 14,
4681.
mla: Zhao, Ziyu, et al. “The Ycf48 Accessory Factor Occupies the Site of the Oxygen-Evolving
Manganese Cluster during Photosystem II Biogenesis.” Nature Communications,
vol. 14, 4681, Springer Nature, 2023, doi:10.1038/s41467-023-40388-6.
short: Z. Zhao, I. Vercellino, J. Knoppová, R. Sobotka, J.W. Murray, P.J. Nixon,
L.A. Sazanov, J. Komenda, Nature Communications 14 (2023).
date_created: 2023-08-13T22:01:13Z
date_published: 2023-08-04T00:00:00Z
date_updated: 2023-12-13T12:06:56Z
day: '04'
ddc:
- '570'
department:
- _id: LeSa
doi: 10.1038/s41467-023-40388-6
external_id:
isi:
- '001042606700004'
file:
- access_level: open_access
checksum: 3b9043df3d51c300f9be95eac3ff9d0b
content_type: application/pdf
creator: dernst
date_created: 2023-08-14T07:01:12Z
date_updated: 2023-08-14T07:01:12Z
file_id: '14044'
file_name: 2023_NatureComm_Zhao.pdf
file_size: 2315325
relation: main_file
success: 1
file_date_updated: 2023-08-14T07:01:12Z
has_accepted_license: '1'
intvolume: ' 14'
isi: 1
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
eissn:
- 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: The Ycf48 accessory factor occupies the site of the oxygen-evolving manganese
cluster during photosystem II biogenesis
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 14
year: '2023'
...
---
_id: '14255'
abstract:
- lang: eng
text: Toscana virus is a major cause of arboviral disease in humans in the Mediterranean
basin during summer. However, early virus-host cell interactions and entry mechanisms
remain poorly characterized. Investigating iPSC-derived human neurons and cell
lines, we found that virus binding to the cell surface was specific, and 50% of
bound virions were endocytosed within 10 min. Virions entered Rab5a+ early endosomes
and, subsequently, Rab7a+ and LAMP-1+ late endosomal compartments. Penetration
required intact late endosomes and occurred within 30 min following internalization.
Virus entry relied on vacuolar acidification, with an optimal pH for viral membrane
fusion at pH 5.5. The pH threshold increased to 5.8 with longer pre-exposure of
virions to the slightly acidic pH in early endosomes. Strikingly, the particles
remained infectious after entering late endosomes with a pH below the fusion threshold.
Overall, our study establishes Toscana virus as a late-penetrating virus and reveals
an atypical use of vacuolar acidity by this virus to enter host cells.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: "We acknowledge Elodie Chatre and the Imaging Platform Platim, SFR
Biosciences, Lyon, as well as Vibor Laketa and the Infectious Diseases Imaging Platform
(IDIP) at the Center for Integrative Infectious Disease Research (CIID) Heidelberg.
The sand fly cell lines were supplied by the Tick Cell Biobank at the University
of Liverpool. F.K.M.S. acknowledges support from the Scientific Service Units (SSUs)
of ISTA through resources provided by the Electron Microscopy Facility (EMF).\r\nThis
work was supported by CellNetworks Research Group funds and Deutsche Forschungsgemeinschaft
(DFG) funding (LO-2338/3-1) and the Agence Nationale de la Recherche (ANR) funding
(grant numbers ANR-21-CE11-0012 and ANR-22-CE15-0034), all awarded to P.-Y.L. This
work was also supported by the LABEX ECOFECT (ANR-11-LABX-0048) of Université de
Lyon (UDL), within the program “Investissements d’Avenir” (ANR-11-IDEX-0007) operated
by the ANR and by the RESPOND program of the UDL (awarded to P.-Y.L) . C.A. was
supported by the Chica and Heinz Schaller Research Group funds, NARSAD 2019 award,
a Fritz Thyssen Research Grant, and the SFB1158-S02 grant. L.B-S. is supported by
a United Kingdom Biotechnology and Biological Sciences Research Council grant (BB/P024270/1)
and a Wellcome Trust grant (223743/Z/21/Z). F.K.M.S acknowledges support from the
Austrian Science Fund (FWF, P31445). J.K. received a salary from the DFG (LO-2338/3-1)
and then from the ANR (ANR-11-LABX-0048). The salary of Z.M.U. was partially covered
by the DFG (LO-2338/3-1). S.K. received a salary from the DFG (SFB1129). We are
grateful to the Chinese Scholarship Council (CSC; 201904910701), DAAD/ANID (57451854/62180003),
the Rufus A. Kellogg fellowship program (Amherst College, Massachusetts, USA) for
awarding fellowships to Q.X., J.C., and H.A.A., respectively."
article_number: e1011562
article_processing_charge: Yes
article_type: original
author:
- first_name: Jana
full_name: Koch, Jana
last_name: Koch
- first_name: Qilin
full_name: Xin, Qilin
last_name: Xin
- first_name: Martin
full_name: Obr, Martin
id: 4741CA5A-F248-11E8-B48F-1D18A9856A87
last_name: Obr
orcid: 0000-0003-1756-6564
- first_name: Alicia
full_name: Schäfer, Alicia
last_name: Schäfer
- first_name: Nina
full_name: Rolfs, Nina
last_name: Rolfs
- first_name: Holda A.
full_name: Anagho, Holda A.
last_name: Anagho
- first_name: Aiste
full_name: Kudulyte, Aiste
last_name: Kudulyte
- first_name: Lea
full_name: Woltereck, Lea
last_name: Woltereck
- first_name: Susann
full_name: Kummer, Susann
last_name: Kummer
- first_name: Joaquin
full_name: Campos, Joaquin
last_name: Campos
- first_name: Zina M.
full_name: Uckeley, Zina M.
last_name: Uckeley
- first_name: Lesley
full_name: Bell-Sakyi, Lesley
last_name: Bell-Sakyi
- first_name: Hans Georg
full_name: Kräusslich, Hans Georg
last_name: Kräusslich
- first_name: Florian Km
full_name: Schur, Florian Km
id: 48AD8942-F248-11E8-B48F-1D18A9856A87
last_name: Schur
orcid: 0000-0003-4790-8078
- first_name: Claudio
full_name: Acuna, Claudio
last_name: Acuna
- first_name: Pierre Yves
full_name: Lozach, Pierre Yves
last_name: Lozach
citation:
ama: Koch J, Xin Q, Obr M, et al. The phenuivirus Toscana virus makes an atypical
use of vacuolar acidity to enter host cells. PLoS Pathogens. 2023;19(8).
doi:10.1371/journal.ppat.1011562
apa: Koch, J., Xin, Q., Obr, M., Schäfer, A., Rolfs, N., Anagho, H. A., … Lozach,
P. Y. (2023). The phenuivirus Toscana virus makes an atypical use of vacuolar
acidity to enter host cells. PLoS Pathogens. Public Library of Science.
https://doi.org/10.1371/journal.ppat.1011562
chicago: Koch, Jana, Qilin Xin, Martin Obr, Alicia Schäfer, Nina Rolfs, Holda A.
Anagho, Aiste Kudulyte, et al. “The Phenuivirus Toscana Virus Makes an Atypical
Use of Vacuolar Acidity to Enter Host Cells.” PLoS Pathogens. Public Library
of Science, 2023. https://doi.org/10.1371/journal.ppat.1011562.
ieee: J. Koch et al., “The phenuivirus Toscana virus makes an atypical use
of vacuolar acidity to enter host cells,” PLoS Pathogens, vol. 19, no.
8. Public Library of Science, 2023.
ista: Koch J, Xin Q, Obr M, Schäfer A, Rolfs N, Anagho HA, Kudulyte A, Woltereck
L, Kummer S, Campos J, Uckeley ZM, Bell-Sakyi L, Kräusslich HG, Schur FK, Acuna
C, Lozach PY. 2023. The phenuivirus Toscana virus makes an atypical use of vacuolar
acidity to enter host cells. PLoS Pathogens. 19(8), e1011562.
mla: Koch, Jana, et al. “The Phenuivirus Toscana Virus Makes an Atypical Use of
Vacuolar Acidity to Enter Host Cells.” PLoS Pathogens, vol. 19, no. 8,
e1011562, Public Library of Science, 2023, doi:10.1371/journal.ppat.1011562.
short: J. Koch, Q. Xin, M. Obr, A. Schäfer, N. Rolfs, H.A. Anagho, A. Kudulyte,
L. Woltereck, S. Kummer, J. Campos, Z.M. Uckeley, L. Bell-Sakyi, H.G. Kräusslich,
F.K. Schur, C. Acuna, P.Y. Lozach, PLoS Pathogens 19 (2023).
date_created: 2023-09-03T22:01:14Z
date_published: 2023-08-14T00:00:00Z
date_updated: 2023-12-13T12:22:22Z
day: '14'
ddc:
- '570'
department:
- _id: FlSc
doi: 10.1371/journal.ppat.1011562
external_id:
isi:
- '001050846300004'
pmid:
- '37578957'
file:
- access_level: open_access
checksum: 47ca3bb54b27f28b05644be0ad064bc6
content_type: application/pdf
creator: dernst
date_created: 2023-09-06T06:41:52Z
date_updated: 2023-09-06T06:41:52Z
file_id: '14269'
file_name: 2023_PloSPathogens_Koch.pdf
file_size: 4458336
relation: main_file
success: 1
file_date_updated: 2023-09-06T06:41:52Z
has_accepted_license: '1'
intvolume: ' 19'
isi: 1
issue: '8'
language:
- iso: eng
month: '08'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 26736D6A-B435-11E9-9278-68D0E5697425
call_identifier: FWF
grant_number: P31445
name: Structural conservation and diversity in retroviral capsid
publication: PLoS Pathogens
publication_identifier:
eissn:
- 1553-7374
issn:
- 1553-7366
publication_status: published
publisher: Public Library of Science
quality_controlled: '1'
scopus_import: '1'
status: public
title: The phenuivirus Toscana virus makes an atypical use of vacuolar acidity to
enter host cells
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 19
year: '2023'
...
---
_id: '14434'
abstract:
- lang: eng
text: High entropy alloys (HEAs) are highly suitable candidate catalysts for oxygen
evolution and reduction reactions (OER/ORR) as they offer numerous parameters
for optimizing the electronic structure and catalytic sites. Herein, FeCoNiMoW
HEA nanoparticles are synthesized using a solution‐based low‐temperature approach.
Such FeCoNiMoW nanoparticles show high entropy properties, subtle lattice distortions,
and modulated electronic structure, leading to superior OER performance with an
overpotential of 233 mV at 10 mA cm−2 and 276 mV at 100 mA cm−2.
Density functional theory calculations reveal the electronic structures of the
FeCoNiMoW active sites with an optimized d‐band center position that enables suitable
adsorption of OOH* intermediates and reduces the Gibbs free energy barrier in
the OER process. Aqueous zinc–air batteries (ZABs) based on this HEA demonstrate
a high open circuit potential of 1.59 V, a peak power density of 116.9 mW cm−2,
a specific capacity of 857 mAh gZn−1,
and excellent stability for over 660 h of continuous charge–discharge cycles.
Flexible and solid ZABs are also assembled and tested, displaying excellent charge–discharge
performance at different bending angles. This work shows the significance of 4d/5d
metal‐modulated electronic structure and optimized adsorption ability to improve
the performance of OER/ORR, ZABs, and beyond.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: The authors acknowledge funding from Generalitat de Catalunya 2021
SGR 01581; the project COMBENERGY, PID2019-105490RB-C32, from the Spanish Ministerio
de Ciencia e Innovación; the National Natural Science Foundation of China (22102002);
the Anhui Provincial Natural Science Foundation (2108085QE192); Zhejiang Province
key research and development project (2023C01191); the Foundation of State Key Laboratory
of High-efficiency Utilization of Coal and Green Chemical Engineering (GrantNo.2022-K31);
and The Key Research and Development Program of Hebei Province (20314305D). IREC
is funded by the CERCA Programme from the Generalitat de Catalunya. L.L.Y. thanks
the China Scholarship Council (CSC) for the scholarship support (202008130132).
This research was supported by the Scientific Service Units (SSU) of ISTA (Institute
of Science and Technology Austria) through resources provided by the Electron Microscopy
Facility (EMF). S.L., S.H., and M.I. acknowledge funding by ISTA and the Werner
Siemens.
article_number: '2303719'
article_processing_charge: No
article_type: original
author:
- first_name: Ren
full_name: He, Ren
last_name: He
- first_name: Linlin
full_name: Yang, Linlin
last_name: Yang
- first_name: Yu
full_name: Zhang, Yu
last_name: Zhang
- first_name: Daochuan
full_name: Jiang, Daochuan
last_name: Jiang
- first_name: Seungho
full_name: Lee, Seungho
id: BB243B88-D767-11E9-B658-BC13E6697425
last_name: Lee
orcid: 0000-0002-6962-8598
- first_name: Sharona
full_name: Horta, Sharona
id: 03a7e858-01b1-11ec-8b71-99ae6c4a05bc
last_name: Horta
- first_name: Zhifu
full_name: Liang, Zhifu
last_name: Liang
- first_name: Xuan
full_name: Lu, Xuan
last_name: Lu
- first_name: Ahmad
full_name: Ostovari Moghaddam, Ahmad
last_name: Ostovari Moghaddam
- first_name: Junshan
full_name: Li, Junshan
last_name: Li
- first_name: Maria
full_name: Ibáñez, Maria
id: 43C61214-F248-11E8-B48F-1D18A9856A87
last_name: Ibáñez
orcid: 0000-0001-5013-2843
- first_name: Ying
full_name: Xu, Ying
last_name: Xu
- first_name: Yingtang
full_name: Zhou, Yingtang
last_name: Zhou
- first_name: Andreu
full_name: Cabot, Andreu
last_name: Cabot
citation:
ama: He R, Yang L, Zhang Y, et al. A 3d‐4d‐5d high entropy alloy as a bifunctional
oxygen catalyst for robust aqueous zinc–air batteries. Advanced Materials.
2023. doi:10.1002/adma.202303719
apa: He, R., Yang, L., Zhang, Y., Jiang, D., Lee, S., Horta, S., … Cabot, A. (2023).
A 3d‐4d‐5d high entropy alloy as a bifunctional oxygen catalyst for robust aqueous
zinc–air batteries. Advanced Materials. Wiley. https://doi.org/10.1002/adma.202303719
chicago: He, Ren, Linlin Yang, Yu Zhang, Daochuan Jiang, Seungho Lee, Sharona Horta,
Zhifu Liang, et al. “A 3d‐4d‐5d High Entropy Alloy as a Bifunctional Oxygen Catalyst
for Robust Aqueous Zinc–Air Batteries.” Advanced Materials. Wiley, 2023.
https://doi.org/10.1002/adma.202303719.
ieee: R. He et al., “A 3d‐4d‐5d high entropy alloy as a bifunctional oxygen
catalyst for robust aqueous zinc–air batteries,” Advanced Materials. Wiley,
2023.
ista: He R, Yang L, Zhang Y, Jiang D, Lee S, Horta S, Liang Z, Lu X, Ostovari Moghaddam
A, Li J, Ibáñez M, Xu Y, Zhou Y, Cabot A. 2023. A 3d‐4d‐5d high entropy alloy
as a bifunctional oxygen catalyst for robust aqueous zinc–air batteries. Advanced
Materials., 2303719.
mla: He, Ren, et al. “A 3d‐4d‐5d High Entropy Alloy as a Bifunctional Oxygen Catalyst
for Robust Aqueous Zinc–Air Batteries.” Advanced Materials, 2303719, Wiley,
2023, doi:10.1002/adma.202303719.
short: R. He, L. Yang, Y. Zhang, D. Jiang, S. Lee, S. Horta, Z. Liang, X. Lu, A.
Ostovari Moghaddam, J. Li, M. Ibáñez, Y. Xu, Y. Zhou, A. Cabot, Advanced Materials
(2023).
date_created: 2023-10-17T10:52:23Z
date_published: 2023-07-24T00:00:00Z
date_updated: 2023-12-13T13:03:23Z
day: '24'
department:
- _id: MaIb
doi: 10.1002/adma.202303719
external_id:
isi:
- '001083876900001'
pmid:
- '37487245'
isi: 1
keyword:
- Mechanical Engineering
- Mechanics of Materials
- General Materials Science
language:
- iso: eng
month: '07'
oa_version: None
pmid: 1
project:
- _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A
name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of
Semiconductors for Waste Heat Recovery'
publication: Advanced Materials
publication_identifier:
issn:
- 0935-9648
- 1521-4095
publication_status: epub_ahead
publisher: Wiley
quality_controlled: '1'
status: public
title: A 3d‐4d‐5d high entropy alloy as a bifunctional oxygen catalyst for robust
aqueous zinc–air batteries
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
_id: '14510'
acknowledged_ssus:
- _id: EM-Fac
- _id: Bio
- _id: LifeSc
alternative_title:
- ISTA Thesis
article_processing_charge: No
author:
- first_name: Nataliia
full_name: Gnyliukh, Nataliia
id: 390C1120-F248-11E8-B48F-1D18A9856A87
last_name: Gnyliukh
orcid: 0000-0002-2198-0509
citation:
ama: Gnyliukh N. Mechanism of clathrin-coated vesicle formation during endocytosis
in plants. 2023. doi:10.15479/at:ista:14510
apa: Gnyliukh, N. (2023). Mechanism of clathrin-coated vesicle formation during
endocytosis in plants. Institute of Science and Technology Austria. https://doi.org/10.15479/at:ista:14510
chicago: Gnyliukh, Nataliia. “Mechanism of Clathrin-Coated Vesicle Formation during
Endocytosis in Plants.” Institute of Science and Technology Austria, 2023. https://doi.org/10.15479/at:ista:14510.
ieee: N. Gnyliukh, “Mechanism of clathrin-coated vesicle formation during endocytosis
in plants,” Institute of Science and Technology Austria, 2023.
ista: Gnyliukh N. 2023. Mechanism of clathrin-coated vesicle formation during endocytosis
in plants. Institute of Science and Technology Austria.
mla: Gnyliukh, Nataliia. Mechanism of Clathrin-Coated Vesicle Formation during
Endocytosis in Plants. Institute of Science and Technology Austria, 2023,
doi:10.15479/at:ista:14510.
short: N. Gnyliukh, Mechanism of Clathrin-Coated Vesicle Formation during Endocytosis
in Plants, Institute of Science and Technology Austria, 2023.
date_created: 2023-11-10T09:10:06Z
date_published: 2023-11-10T00:00:00Z
date_updated: 2024-03-25T23:30:25Z
day: '10'
ddc:
- '570'
degree_awarded: PhD
department:
- _id: GradSch
- _id: JiFr
- _id: MaLo
doi: 10.15479/at:ista:14510
ec_funded: 1
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keyword:
- Clathrin-Mediated Endocytosis
- vesicle scission
- Dynamin-Related Protein 2
- SH3P2
- TPLATE complex
- Total internal reflection fluorescence microscopy
- Arabidopsis thaliana
language:
- iso: eng
month: '11'
oa_version: Published Version
page: '180'
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication_identifier:
isbn:
- 978-3-99078-037-4
issn:
- 2663-337X
publication_status: published
publisher: Institute of Science and Technology Austria
related_material:
record:
- id: '14591'
relation: part_of_dissertation
status: public
- id: '9887'
relation: part_of_dissertation
status: public
- id: '8139'
relation: part_of_dissertation
status: public
status: public
supervisor:
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
- first_name: Martin
full_name: Loose, Martin
id: 462D4284-F248-11E8-B48F-1D18A9856A87
last_name: Loose
orcid: 0000-0001-7309-9724
title: Mechanism of clathrin-coated vesicle formation during endocytosis in plants
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: dissertation
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...
---
_id: '14591'
abstract:
- lang: eng
text: Clathrin-mediated endocytosis (CME) is vital for the regulation of plant growth
and development by controlling plasma membrane protein composition and cargo uptake.
CME relies on the precise recruitment of regulators for vesicle maturation and
release. Homologues of components of mammalian vesicle scission are strong candidates
to be part of the scissin machinery in plants, but the precise roles of these
proteins in this process is not fully understood. Here, we characterised the roles
of Plant Dynamin-Related Proteins 2 (DRP2s) and SH3-domain containing protein
2 (SH3P2), the plant homologue to Dynamins’ recruiters, like Endophilin and Amphiphysin,
in the CME by combining high-resolution imaging of endocytic events in vivo and
characterisation of the purified proteins in vitro. Although DRP2s and SH3P2 arrive
similarly late during CME and physically interact, genetic analysis of the Dsh3p1,2,3
triple-mutant and complementation assays with non-SH3P2-interacting DRP2 variants
suggests that SH3P2 does not directly recruit DRP2s to the site of endocytosis.
These observations imply that despite the presence of many well-conserved endocytic
components, plants have acquired a distinct mechanism for CME. One Sentence Summary
In contrast to predictions based on mammalian systems, plant Dynamin-related proteins
2 are recruited to the site of Clathrin-mediated endocytosis independently of
BAR-SH3 proteins.
acknowledged_ssus:
- _id: EM-Fac
- _id: LifeSc
- _id: Bio
article_processing_charge: No
author:
- first_name: Nataliia
full_name: Gnyliukh, Nataliia
id: 390C1120-F248-11E8-B48F-1D18A9856A87
last_name: Gnyliukh
orcid: 0000-0002-2198-0509
- first_name: Alexander J
full_name: Johnson, Alexander J
id: 46A62C3A-F248-11E8-B48F-1D18A9856A87
last_name: Johnson
orcid: 0000-0002-2739-8843
- first_name: Marie-Kristin
full_name: Nagel, Marie-Kristin
last_name: Nagel
- first_name: Aline
full_name: Monzer, Aline
id: 2DB5D88C-D7B3-11E9-B8FD-7907E6697425
last_name: Monzer
- first_name: Annamaria
full_name: Hlavata, Annamaria
id: 36062FEC-F248-11E8-B48F-1D18A9856A87
last_name: Hlavata
- first_name: Erika
full_name: Isono, Erika
last_name: Isono
- first_name: Martin
full_name: Loose, Martin
id: 462D4284-F248-11E8-B48F-1D18A9856A87
last_name: Loose
orcid: 0000-0001-7309-9724
- first_name: Jiří
full_name: Friml, Jiří
id: 4159519E-F248-11E8-B48F-1D18A9856A87
last_name: Friml
orcid: 0000-0002-8302-7596
citation:
ama: Gnyliukh N, Johnson AJ, Nagel M-K, et al. Role of dynamin-related proteins
2 and SH3P2 in clathrin-mediated endocytosis in plants. bioRxiv. doi:10.1101/2023.10.09.561523
apa: Gnyliukh, N., Johnson, A. J., Nagel, M.-K., Monzer, A., Hlavata, A., Isono,
E., … Friml, J. (n.d.). Role of dynamin-related proteins 2 and SH3P2 in clathrin-mediated
endocytosis in plants. bioRxiv. https://doi.org/10.1101/2023.10.09.561523
chicago: Gnyliukh, Nataliia, Alexander J Johnson, Marie-Kristin Nagel, Aline Monzer,
Annamaria Hlavata, Erika Isono, Martin Loose, and Jiří Friml. “Role of Dynamin-Related
Proteins 2 and SH3P2 in Clathrin-Mediated Endocytosis in Plants.” BioRxiv,
n.d. https://doi.org/10.1101/2023.10.09.561523.
ieee: N. Gnyliukh et al., “Role of dynamin-related proteins 2 and SH3P2 in
clathrin-mediated endocytosis in plants,” bioRxiv. .
ista: Gnyliukh N, Johnson AJ, Nagel M-K, Monzer A, Hlavata A, Isono E, Loose M,
Friml J. Role of dynamin-related proteins 2 and SH3P2 in clathrin-mediated endocytosis
in plants. bioRxiv, 10.1101/2023.10.09.561523.
mla: Gnyliukh, Nataliia, et al. “Role of Dynamin-Related Proteins 2 and SH3P2 in
Clathrin-Mediated Endocytosis in Plants.” BioRxiv, doi:10.1101/2023.10.09.561523.
short: N. Gnyliukh, A.J. Johnson, M.-K. Nagel, A. Monzer, A. Hlavata, E. Isono,
M. Loose, J. Friml, BioRxiv (n.d.).
date_created: 2023-11-22T10:17:49Z
date_published: 2023-10-10T00:00:00Z
date_updated: 2023-12-01T13:51:06Z
day: '10'
department:
- _id: JiFr
- _id: MaLo
- _id: CaBe
doi: 10.1101/2023.10.09.561523
ec_funded: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.biorxiv.org/content/10.1101/2023.10.09.561523v2
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 2564DBCA-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '665385'
name: International IST Doctoral Program
publication: bioRxiv
publication_status: submitted
related_material:
record:
- id: '14510'
relation: dissertation_contains
status: public
status: public
title: Role of dynamin-related proteins 2 and SH3P2 in clathrin-mediated endocytosis
in plants
type: preprint
user_id: 8b945eb4-e2f2-11eb-945a-df72226e66a9
year: '2023'
...