---
_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. <i>Nature Structural
    &#38; Molecular Biology</i>. 2024. doi:<a href="https://doi.org/10.1038/s41594-023-01201-6">10.1038/s41594-023-01201-6</a>
  apa: Datler, J., Hansen, J., Thader, A., Schlögl, A., Bauer, L. W., Hodirnau, V.-V.,
    &#38; Schur, F. K. (2024). Multi-modal cryo-EM reveals trimers of protein A10
    to form the palisade layer in poxvirus cores. <i>Nature Structural &#38; Molecular
    Biology</i>. Springer Nature. <a href="https://doi.org/10.1038/s41594-023-01201-6">https://doi.org/10.1038/s41594-023-01201-6</a>
  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.” <i>Nature Structural
    &#38; Molecular Biology</i>. Springer Nature, 2024. <a href="https://doi.org/10.1038/s41594-023-01201-6">https://doi.org/10.1038/s41594-023-01201-6</a>.
  ieee: J. Datler <i>et al.</i>, “Multi-modal cryo-EM reveals trimers of protein A10
    to form the palisade layer in poxvirus cores,” <i>Nature Structural &#38; Molecular
    Biology</i>. 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 &#38; Molecular Biology.
  mla: Datler, Julia, et al. “Multi-Modal Cryo-EM Reveals Trimers of Protein A10 to
    Form the Palisade Layer in Poxvirus Cores.” <i>Nature Structural &#38; Molecular
    Biology</i>, Springer Nature, 2024, doi:<a href="https://doi.org/10.1038/s41594-023-01201-6">10.1038/s41594-023-01201-6</a>.
  short: J. Datler, J. Hansen, A. Thader, A. Schlögl, L.W. Bauer, V.-V. Hodirnau,
    F.K. Schur, Nature Structural &#38; 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: '13161'
acknowledgement: Thanks to Jesse Hansen for his suggestions on improving the abstract.
article_processing_charge: No
author:
- first_name: Alois
  full_name: Schlögl, Alois
  id: 45BF87EE-F248-11E8-B48F-1D18A9856A87
  last_name: Schlögl
  orcid: 0000-0002-5621-8100
- first_name: Stefano
  full_name: Elefante, Stefano
  id: 490F40CE-F248-11E8-B48F-1D18A9856A87
  last_name: Elefante
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
citation:
  ama: 'Schlögl A, Elefante S, Hodirnau V-V. Running Windows-applications on a Linux
    HPC cluster using WINE. In: <i>ASHPC23 - Austrian-Slovenian HPC Meeting 2023</i>.
    EuroCC; :59-59.'
  apa: 'Schlögl, A., Elefante, S., &#38; Hodirnau, V.-V. (n.d.). Running Windows-applications
    on a Linux HPC cluster using WINE. In <i>ASHPC23 - Austrian-Slovenian HPC Meeting
    2023</i> (pp. 59–59). Maribor, Slovenia: EuroCC.'
  chicago: Schlögl, Alois, Stefano Elefante, and Victor-Valentin Hodirnau. “Running
    Windows-Applications on a Linux HPC Cluster Using WINE.” In <i>ASHPC23 - Austrian-Slovenian
    HPC Meeting 2023</i>, 59–59. EuroCC, n.d.
  ieee: A. Schlögl, S. Elefante, and V.-V. Hodirnau, “Running Windows-applications
    on a Linux HPC cluster using WINE,” in <i>ASHPC23 - Austrian-Slovenian HPC Meeting
    2023</i>, Maribor, Slovenia, pp. 59–59.
  ista: 'Schlögl A, Elefante S, Hodirnau V-V. Running Windows-applications on a Linux
    HPC cluster using WINE. ASHPC23 - Austrian-Slovenian HPC Meeting 2023. ASHPC:
    Austrian-Slovenian HPC Meeting, 59–59.'
  mla: Schlögl, Alois, et al. “Running Windows-Applications on a Linux HPC Cluster
    Using WINE.” <i>ASHPC23 - Austrian-Slovenian HPC Meeting 2023</i>, EuroCC, pp.
    59–59.
  short: A. Schlögl, S. Elefante, V.-V. Hodirnau, in:, ASHPC23 - Austrian-Slovenian
    HPC Meeting 2023, EuroCC, n.d., pp. 59–59.
conference:
  end_date: 2023-06-15
  location: Maribor, Slovenia
  name: 'ASHPC: Austrian-Slovenian HPC Meeting'
  start_date: 2023-06-13
date_created: 2023-06-23T11:01:23Z
date_published: 2023-07-01T00:00:00Z
date_updated: 2023-07-18T09:30:54Z
day: '01'
ddc:
- '000'
department:
- _id: ScienComp
- _id: EM-Fac
file:
- access_level: open_access
  checksum: ec8e4295d54171032cdd1b01423eb4a6
  content_type: application/pdf
  creator: dernst
  date_created: 2023-07-18T09:18:55Z
  date_updated: 2023-07-18T09:18:55Z
  file_id: '13249'
  file_name: 2023_ASHPC_Schloegl.pdf
  file_size: 316959
  relation: main_file
  success: 1
file_date_updated: 2023-07-18T09:18:55Z
has_accepted_license: '1'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Submitted Version
page: 59-59
publication: ASHPC23 - Austrian-Slovenian HPC Meeting 2023
publication_status: inpress
publisher: EuroCC
quality_controlled: '1'
status: public
title: Running Windows-applications on a Linux HPC cluster using WINE
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: conference_abstract
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
_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.</jats:p>
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. <i>Science Advances</i>.
    2023;9(3). doi:<a href="https://doi.org/10.1126/sciadv.add6495">10.1126/sciadv.add6495</a>
  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. <i>Science Advances</i>. American Association
    for the Advancement of Science. <a href="https://doi.org/10.1126/sciadv.add6495">https://doi.org/10.1126/sciadv.add6495</a>
  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.” <i>Science Advances</i>. American
    Association for the Advancement of Science, 2023. <a href="https://doi.org/10.1126/sciadv.add6495">https://doi.org/10.1126/sciadv.add6495</a>.
  ieee: F. Fäßler <i>et al.</i>, “ArpC5 isoforms regulate Arp2/3 complex–dependent
    protrusion through differential Ena/VASP positioning,” <i>Science Advances</i>,
    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.” <i>Science Advances</i>, vol. 9, no.
    3, add6495, American Association for the Advancement of Science, 2023, doi:<a
    href="https://doi.org/10.1126/sciadv.add6495">10.1126/sciadv.add6495</a>.
  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: 2023-11-21T08:05:35Z
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'
isi: 1
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: public
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: '12262'
abstract:
- lang: eng
  text: The AAA-ATPase Drg1 is a key factor in eukaryotic ribosome biogenesis that
    initiates cytoplasmic maturation of the large ribosomal subunit. Drg1 releases
    the shuttling maturation factor Rlp24 from pre-60S particles shortly after nuclear
    export, a strict requirement for downstream maturation. The molecular mechanism
    of release remained elusive. Here, we report a series of cryo-EM structures that
    captured the extraction of Rlp24 from pre-60S particles by Saccharomyces cerevisiae
    Drg1. These structures reveal that Arx1 and the eukaryote-specific rRNA expansion
    segment ES27 form a joint docking platform that positions Drg1 for efficient extraction
    of Rlp24 from the pre-ribosome. The tips of the Drg1 N domains thereby guide the
    Rlp24 C terminus into the central pore of the Drg1 hexamer, enabling extraction
    by a hand-over-hand translocation mechanism. Our results uncover substrate recognition
    and processing by Drg1 step by step and provide a comprehensive mechanistic picture
    of the conserved modus operandi of AAA-ATPases.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: "We thank M. Fromont-Racine, A. Johnson, J. Woolford, S. Rospert,
  J. P. G. Ballesta and\r\nE. Hurt for supplying antibodies. The work was supported
  by Boehringer Ingelheim (to\r\nD. H.), the Austrian Science Foundation FWF (grants
  32536 and 32977 to H. B.), the\r\nUK Medical Research Council (MR/T012412/1 to A.
  J. W.) and the German Research\r\nFoundation (Emmy Noether Programme STE 2517/1-1
  and STE 2517/5-1 to F.S.). We\r\nthank Norberto Escudero-Urquijo, Pablo Castro-Hartmann
  and K. Dent, Cambridge\r\nInstitute for Medical Research, for their help in cryo-EM
  during early phases of this\r\nproject. This research was supported by the Scientific
  Service Units of IST Austria through\r\nresources provided by the Electron Microscopy
  Facility. We thank S. Keller, Institute of\r\nMolecular Biosciences (Biophysics),
  University Graz for support with the quantification of\r\nthe SPR particle release
  assay. We thank I. Schaffner, University of Natural Resources and\r\nLife Sciences,
  Vienna for her help in early stages of the SPR experiments."
article_processing_charge: No
article_type: original
author:
- first_name: Michael
  full_name: Prattes, Michael
  last_name: Prattes
- first_name: Irina
  full_name: Grishkovskaya, Irina
  last_name: Grishkovskaya
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
- first_name: Christina
  full_name: Hetzmannseder, Christina
  last_name: Hetzmannseder
- first_name: Gertrude
  full_name: Zisser, Gertrude
  last_name: Zisser
- first_name: Carolin
  full_name: Sailer, Carolin
  last_name: Sailer
- first_name: Vasileios
  full_name: Kargas, Vasileios
  last_name: Kargas
- first_name: Mathias
  full_name: Loibl, Mathias
  last_name: Loibl
- first_name: Magdalena
  full_name: Gerhalter, Magdalena
  last_name: Gerhalter
- first_name: Lisa
  full_name: Kofler, Lisa
  last_name: Kofler
- first_name: Alan J.
  full_name: Warren, Alan J.
  last_name: Warren
- first_name: Florian
  full_name: Stengel, Florian
  last_name: Stengel
- first_name: David
  full_name: Haselbach, David
  last_name: Haselbach
- first_name: Helmut
  full_name: Bergler, Helmut
  last_name: Bergler
citation:
  ama: Prattes M, Grishkovskaya I, Hodirnau V-V, et al. Visualizing maturation factor
    extraction from the nascent ribosome by the AAA-ATPase Drg1. <i>Nature Structural
    &#38; Molecular Biology</i>. 2022;29(9):942-953. doi:<a href="https://doi.org/10.1038/s41594-022-00832-5">10.1038/s41594-022-00832-5</a>
  apa: Prattes, M., Grishkovskaya, I., Hodirnau, V.-V., Hetzmannseder, C., Zisser,
    G., Sailer, C., … Bergler, H. (2022). Visualizing maturation factor extraction
    from the nascent ribosome by the AAA-ATPase Drg1. <i>Nature Structural &#38; Molecular
    Biology</i>. Springer Nature. <a href="https://doi.org/10.1038/s41594-022-00832-5">https://doi.org/10.1038/s41594-022-00832-5</a>
  chicago: Prattes, Michael, Irina Grishkovskaya, Victor-Valentin Hodirnau, Christina
    Hetzmannseder, Gertrude Zisser, Carolin Sailer, Vasileios Kargas, et al. “Visualizing
    Maturation Factor Extraction from the Nascent Ribosome by the AAA-ATPase Drg1.”
    <i>Nature Structural &#38; Molecular Biology</i>. Springer Nature, 2022. <a href="https://doi.org/10.1038/s41594-022-00832-5">https://doi.org/10.1038/s41594-022-00832-5</a>.
  ieee: M. Prattes <i>et al.</i>, “Visualizing maturation factor extraction from the
    nascent ribosome by the AAA-ATPase Drg1,” <i>Nature Structural &#38; Molecular
    Biology</i>, vol. 29, no. 9. Springer Nature, pp. 942–953, 2022.
  ista: Prattes M, Grishkovskaya I, Hodirnau V-V, Hetzmannseder C, Zisser G, Sailer
    C, Kargas V, Loibl M, Gerhalter M, Kofler L, Warren AJ, Stengel F, Haselbach D,
    Bergler H. 2022. Visualizing maturation factor extraction from the nascent ribosome
    by the AAA-ATPase Drg1. Nature Structural &#38; Molecular Biology. 29(9), 942–953.
  mla: Prattes, Michael, et al. “Visualizing Maturation Factor Extraction from the
    Nascent Ribosome by the AAA-ATPase Drg1.” <i>Nature Structural &#38; Molecular
    Biology</i>, vol. 29, no. 9, Springer Nature, 2022, pp. 942–53, doi:<a href="https://doi.org/10.1038/s41594-022-00832-5">10.1038/s41594-022-00832-5</a>.
  short: M. Prattes, I. Grishkovskaya, V.-V. Hodirnau, C. Hetzmannseder, G. Zisser,
    C. Sailer, V. Kargas, M. Loibl, M. Gerhalter, L. Kofler, A.J. Warren, F. Stengel,
    D. Haselbach, H. Bergler, Nature Structural &#38; Molecular Biology 29 (2022)
    942–953.
date_created: 2023-01-16T09:59:06Z
date_published: 2022-09-12T00:00:00Z
date_updated: 2023-08-04T09:52:20Z
day: '12'
ddc:
- '570'
department:
- _id: EM-Fac
doi: 10.1038/s41594-022-00832-5
external_id:
  isi:
  - '000852942100004'
  pmid:
  - '36097293'
file:
- access_level: open_access
  checksum: 2d5c3ec01718fefd7553052b0b8a0793
  content_type: application/pdf
  creator: dernst
  date_created: 2023-01-30T10:00:04Z
  date_updated: 2023-01-30T10:00:04Z
  file_id: '12447'
  file_name: 2022_NatureStrucMolecBio_Prattes.pdf
  file_size: 9935057
  relation: main_file
  success: 1
file_date_updated: 2023-01-30T10:00:04Z
has_accepted_license: '1'
intvolume: '        29'
isi: 1
issue: '9'
keyword:
- Molecular Biology
- Structural Biology
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
page: 942-953
pmid: 1
publication: Nature Structural & Molecular Biology
publication_identifier:
  eissn:
  - 1545-9985
  issn:
  - 1545-9993
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Visualizing maturation factor extraction from the nascent ribosome by the AAA-ATPase
  Drg1
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: 29
year: '2022'
...
---
_id: '9540'
abstract:
- lang: eng
  text: The hexameric AAA-ATPase Drg1 is a key factor in eukaryotic ribosome biogenesis
    and initiates cytoplasmic maturation of the large ribosomal subunit by releasing
    the shuttling maturation factor Rlp24. Drg1 monomers contain two AAA-domains (D1
    and D2) that act in a concerted manner. Rlp24 release is inhibited by the drug
    diazaborine which blocks ATP hydrolysis in D2. The mode of inhibition was unknown.
    Here we show the first cryo-EM structure of Drg1 revealing the inhibitory mechanism.
    Diazaborine forms a covalent bond to the 2′-OH of the nucleotide in D2, explaining
    its specificity for this site. As a consequence, the D2 domain is locked in a
    rigid, inactive state, stalling the whole Drg1 hexamer. Resistance mechanisms
    identified include abolished drug binding and altered positioning of the nucleotide.
    Our results suggest nucleotide-modifying compounds as potential novel inhibitors
    for AAA-ATPases.
acknowledged_ssus:
- _id: EM-Fac
acknowledgement: We are deeply grateful to the late Gregor Högenauer who built the
  foundation for this study with his visionary work on the inhibitor diazaborine and
  its bacterial target. We thank Rolf Breinbauer for insightful discussions on boron
  chemistry. We thank Anton Meinhart and Tim Clausen for the valuable discussion of
  the manuscript. We are indebted to Thomas Köcher for the MS measurement of the diazaborine-ATPγS
  adduct. We thank the team of the VBCF for support during early phases of this work
  and the IST Austria Electron Microscopy Facility for providing equipment. The lab
  of D.H. is supported by Boehringer Ingelheim. The work was funded by FWF projects
  P32536 and P32977 (to H.B.).
article_number: '3483'
article_processing_charge: No
article_type: original
author:
- first_name: Michael
  full_name: Prattes, Michael
  last_name: Prattes
- first_name: Irina
  full_name: Grishkovskaya, Irina
  last_name: Grishkovskaya
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
- first_name: Ingrid
  full_name: Rössler, Ingrid
  last_name: Rössler
- first_name: Isabella
  full_name: Klein, Isabella
  last_name: Klein
- first_name: Christina
  full_name: Hetzmannseder, Christina
  last_name: Hetzmannseder
- first_name: Gertrude
  full_name: Zisser, Gertrude
  last_name: Zisser
- first_name: Christian C.
  full_name: Gruber, Christian C.
  last_name: Gruber
- first_name: Karl
  full_name: Gruber, Karl
  last_name: Gruber
- first_name: David
  full_name: Haselbach, David
  last_name: Haselbach
- first_name: Helmut
  full_name: Bergler, Helmut
  last_name: Bergler
citation:
  ama: Prattes M, Grishkovskaya I, Hodirnau V-V, et al. Structural basis for inhibition
    of the AAA-ATPase Drg1 by diazaborine. <i>Nature Communications</i>. 2021;12(1).
    doi:<a href="https://doi.org/10.1038/s41467-021-23854-x">10.1038/s41467-021-23854-x</a>
  apa: Prattes, M., Grishkovskaya, I., Hodirnau, V.-V., Rössler, I., Klein, I., Hetzmannseder,
    C., … Bergler, H. (2021). Structural basis for inhibition of the AAA-ATPase Drg1
    by diazaborine. <i>Nature Communications</i>. Springer Nature. <a href="https://doi.org/10.1038/s41467-021-23854-x">https://doi.org/10.1038/s41467-021-23854-x</a>
  chicago: Prattes, Michael, Irina Grishkovskaya, Victor-Valentin Hodirnau, Ingrid
    Rössler, Isabella Klein, Christina Hetzmannseder, Gertrude Zisser, et al. “Structural
    Basis for Inhibition of the AAA-ATPase Drg1 by Diazaborine.” <i>Nature Communications</i>.
    Springer Nature, 2021. <a href="https://doi.org/10.1038/s41467-021-23854-x">https://doi.org/10.1038/s41467-021-23854-x</a>.
  ieee: M. Prattes <i>et al.</i>, “Structural basis for inhibition of the AAA-ATPase
    Drg1 by diazaborine,” <i>Nature Communications</i>, vol. 12, no. 1. Springer Nature,
    2021.
  ista: Prattes M, Grishkovskaya I, Hodirnau V-V, Rössler I, Klein I, Hetzmannseder
    C, Zisser G, Gruber CC, Gruber K, Haselbach D, Bergler H. 2021. Structural basis
    for inhibition of the AAA-ATPase Drg1 by diazaborine. Nature Communications. 12(1),
    3483.
  mla: Prattes, Michael, et al. “Structural Basis for Inhibition of the AAA-ATPase
    Drg1 by Diazaborine.” <i>Nature Communications</i>, vol. 12, no. 1, 3483, Springer
    Nature, 2021, doi:<a href="https://doi.org/10.1038/s41467-021-23854-x">10.1038/s41467-021-23854-x</a>.
  short: M. Prattes, I. Grishkovskaya, V.-V. Hodirnau, I. Rössler, I. Klein, C. Hetzmannseder,
    G. Zisser, C.C. Gruber, K. Gruber, D. Haselbach, H. Bergler, Nature Communications
    12 (2021).
date_created: 2021-06-10T14:57:45Z
date_published: 2021-06-09T00:00:00Z
date_updated: 2023-08-08T14:05:26Z
day: '09'
ddc:
- '570'
department:
- _id: EM-Fac
doi: 10.1038/s41467-021-23854-x
external_id:
  isi:
  - '000664874700014'
  pmid:
  - '34108481'
file:
- access_level: open_access
  checksum: 40fc24c1310930990b52a8ad1142ee97
  content_type: application/pdf
  creator: cziletti
  date_created: 2021-06-15T18:55:59Z
  date_updated: 2021-06-15T18:55:59Z
  file_id: '9556'
  file_name: 2021_NatureComm_Prattes.pdf
  file_size: 3397292
  relation: main_file
  success: 1
file_date_updated: 2021-06-15T18:55:59Z
has_accepted_license: '1'
intvolume: '        12'
isi: 1
issue: '1'
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '06'
oa: 1
oa_version: Published Version
pmid: 1
publication: Nature Communications
publication_identifier:
  eissn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: Structural basis for inhibition of the AAA-ATPase Drg1 by diazaborine
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: 12
year: '2021'
...
---
_id: '8744'
abstract:
- lang: eng
  text: Understanding the conformational sampling of translation-arrested ribosome
    nascent chain complexes is key to understand co-translational folding. Up to now,
    coupling of cysteine oxidation, disulfide bond formation and structure formation
    in nascent chains has remained elusive. Here, we investigate the eye-lens protein
    γB-crystallin in the ribosomal exit tunnel. Using mass spectrometry, theoretical
    simulations, dynamic nuclear polarization-enhanced solid-state nuclear magnetic
    resonance and cryo-electron microscopy, we show that thiol groups of cysteine
    residues undergo S-glutathionylation and S-nitrosylation and form non-native disulfide
    bonds. Thus, covalent modification chemistry occurs already prior to nascent chain
    release as the ribosome exit tunnel provides sufficient space even for disulfide
    bond formation which can guide protein folding.
acknowledgement: 'We acknowledge help from Anja Seybert, Margot Frangakis, Diana Grewe,
  Mikhail Eltsov, Utz Ermel, and Shintaro Aibara. The work was supported by Deutsche
  Forschungsgemeinschaft in the CLiC graduate school. Work at the Center for Biomolecular
  Magnetic Resonance (BMRZ) is supported by the German state of Hesse. The work at
  BMRZ has been supported by the state of Hesse. L.S. has been supported by the DFG
  graduate college: CLiC.'
article_number: '5569'
article_processing_charge: No
article_type: original
author:
- first_name: Linda
  full_name: Schulte, Linda
  last_name: Schulte
- first_name: Jiafei
  full_name: Mao, Jiafei
  last_name: Mao
- first_name: Julian
  full_name: Reitz, Julian
  last_name: Reitz
- first_name: Sridhar
  full_name: Sreeramulu, Sridhar
  last_name: Sreeramulu
- first_name: Denis
  full_name: Kudlinzki, Denis
  last_name: Kudlinzki
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
- first_name: Jakob
  full_name: Meier-Credo, Jakob
  last_name: Meier-Credo
- first_name: Krishna
  full_name: Saxena, Krishna
  last_name: Saxena
- first_name: Florian
  full_name: Buhr, Florian
  last_name: Buhr
- first_name: Julian D.
  full_name: Langer, Julian D.
  last_name: Langer
- first_name: Martin
  full_name: Blackledge, Martin
  last_name: Blackledge
- first_name: Achilleas S.
  full_name: Frangakis, Achilleas S.
  last_name: Frangakis
- first_name: Clemens
  full_name: Glaubitz, Clemens
  last_name: Glaubitz
- first_name: Harald
  full_name: Schwalbe, Harald
  last_name: Schwalbe
citation:
  ama: Schulte L, Mao J, Reitz J, et al. Cysteine oxidation and disulfide formation
    in the ribosomal exit tunnel. <i>Nature Communications</i>. 2020;11. doi:<a href="https://doi.org/10.1038/s41467-020-19372-x">10.1038/s41467-020-19372-x</a>
  apa: Schulte, L., Mao, J., Reitz, J., Sreeramulu, S., Kudlinzki, D., Hodirnau, V.-V.,
    … Schwalbe, H. (2020). Cysteine oxidation and disulfide formation in the ribosomal
    exit tunnel. <i>Nature Communications</i>. Springer Nature. <a href="https://doi.org/10.1038/s41467-020-19372-x">https://doi.org/10.1038/s41467-020-19372-x</a>
  chicago: Schulte, Linda, Jiafei Mao, Julian Reitz, Sridhar Sreeramulu, Denis Kudlinzki,
    Victor-Valentin Hodirnau, Jakob Meier-Credo, et al. “Cysteine Oxidation and Disulfide
    Formation in the Ribosomal Exit Tunnel.” <i>Nature Communications</i>. Springer
    Nature, 2020. <a href="https://doi.org/10.1038/s41467-020-19372-x">https://doi.org/10.1038/s41467-020-19372-x</a>.
  ieee: L. Schulte <i>et al.</i>, “Cysteine oxidation and disulfide formation in the
    ribosomal exit tunnel,” <i>Nature Communications</i>, vol. 11. Springer Nature,
    2020.
  ista: Schulte L, Mao J, Reitz J, Sreeramulu S, Kudlinzki D, Hodirnau V-V, Meier-Credo
    J, Saxena K, Buhr F, Langer JD, Blackledge M, Frangakis AS, Glaubitz C, Schwalbe
    H. 2020. Cysteine oxidation and disulfide formation in the ribosomal exit tunnel.
    Nature Communications. 11, 5569.
  mla: Schulte, Linda, et al. “Cysteine Oxidation and Disulfide Formation in the Ribosomal
    Exit Tunnel.” <i>Nature Communications</i>, vol. 11, 5569, Springer Nature, 2020,
    doi:<a href="https://doi.org/10.1038/s41467-020-19372-x">10.1038/s41467-020-19372-x</a>.
  short: L. Schulte, J. Mao, J. Reitz, S. Sreeramulu, D. Kudlinzki, V.-V. Hodirnau,
    J. Meier-Credo, K. Saxena, F. Buhr, J.D. Langer, M. Blackledge, A.S. Frangakis,
    C. Glaubitz, H. Schwalbe, Nature Communications 11 (2020).
date_created: 2020-11-09T07:49:36Z
date_published: 2020-11-04T00:00:00Z
date_updated: 2023-08-22T12:36:07Z
day: '04'
ddc:
- '570'
department:
- _id: EM-Fac
doi: 10.1038/s41467-020-19372-x
external_id:
  isi:
  - '000592028600001'
file:
- access_level: open_access
  checksum: b2688f0347e69e6629bba582077278c5
  content_type: application/pdf
  creator: dernst
  date_created: 2020-11-09T07:56:24Z
  date_updated: 2020-11-09T07:56:24Z
  file_id: '8745'
  file_name: 2020_NatureComm_Schulte.pdf
  file_size: 1670898
  relation: main_file
  success: 1
file_date_updated: 2020-11-09T07:56:24Z
has_accepted_license: '1'
intvolume: '        11'
isi: 1
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '11'
oa: 1
oa_version: Published Version
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Cysteine oxidation and disulfide formation in the ribosomal exit tunnel
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: 11
year: '2020'
...
---
_id: '8971'
abstract:
- lang: eng
  text: The actin-related protein (Arp)2/3 complex nucleates branched actin filament
    networks pivotal for cell migration, endocytosis and pathogen infection. Its activation
    is tightly regulated and involves complex structural rearrangements and actin
    filament binding, which are yet to be understood. Here, we report a 9.0 Å resolution
    structure of the actin filament Arp2/3 complex branch junction in cells using
    cryo-electron tomography and subtomogram averaging. This allows us to generate
    an accurate model of the active Arp2/3 complex in the branch junction and its
    interaction with actin filaments. Notably, our model reveals a previously undescribed
    set of interactions of the Arp2/3 complex with the mother filament, significantly
    different to the previous branch junction model. Our structure also indicates
    a central role for the ArpC3 subunit in stabilizing the active conformation.
acknowledged_ssus:
- _id: ScienComp
- _id: LifeSc
- _id: Bio
- _id: EM-Fac
acknowledgement: "This research was supported by the Scientific Service Units (SSUs)
  of IST Austria through resources provided by Scientific Computing (SciComp), the
  Life Science Facility (LSF), the BioImaging Facility (BIF), and the Electron Microscopy
  Facility (EMF). We also thank Dimitry Tegunov (MPI for Biophysical Chemistry) for
  helpful discussions\r\nabout the M software, and Michael Sixt (IST Austria) and
  Klemens Rottner (Technical University Braunschweig, HZI Braunschweig) for critical
  reading of the manuscript. We also thank Gregory Voth (University of Chicago) for
  providing us the MD-derived branch junction model for comparison. The authors acknowledge
  support from IST Austria and from the Austrian Science Fund (FWF): M02495 to G.D.
  and Austrian Science Fund (FWF): P33367 to F.K.M.S. "
article_number: '6437'
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: 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: William
  full_name: Wan, William
  last_name: Wan
- 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, Dimchev GA, Hodirnau V-V, Wan W, Schur FK. Cryo-electron tomography
    structure of Arp2/3 complex in cells reveals new insights into the branch junction.
    <i>Nature Communications</i>. 2020;11. doi:<a href="https://doi.org/10.1038/s41467-020-20286-x">10.1038/s41467-020-20286-x</a>
  apa: Fäßler, F., Dimchev, G. A., Hodirnau, V.-V., Wan, W., &#38; Schur, F. K. (2020).
    Cryo-electron tomography structure of Arp2/3 complex in cells reveals new insights
    into the branch junction. <i>Nature Communications</i>. Springer Nature. <a href="https://doi.org/10.1038/s41467-020-20286-x">https://doi.org/10.1038/s41467-020-20286-x</a>
  chicago: Fäßler, Florian, Georgi A Dimchev, Victor-Valentin Hodirnau, William Wan,
    and Florian KM Schur. “Cryo-Electron Tomography Structure of Arp2/3 Complex in
    Cells Reveals New Insights into the Branch Junction.” <i>Nature Communications</i>.
    Springer Nature, 2020. <a href="https://doi.org/10.1038/s41467-020-20286-x">https://doi.org/10.1038/s41467-020-20286-x</a>.
  ieee: F. Fäßler, G. A. Dimchev, V.-V. Hodirnau, W. Wan, and F. K. Schur, “Cryo-electron
    tomography structure of Arp2/3 complex in cells reveals new insights into the
    branch junction,” <i>Nature Communications</i>, vol. 11. Springer Nature, 2020.
  ista: Fäßler F, Dimchev GA, Hodirnau V-V, Wan W, Schur FK. 2020. Cryo-electron tomography
    structure of Arp2/3 complex in cells reveals new insights into the branch junction.
    Nature Communications. 11, 6437.
  mla: Fäßler, Florian, et al. “Cryo-Electron Tomography Structure of Arp2/3 Complex
    in Cells Reveals New Insights into the Branch Junction.” <i>Nature Communications</i>,
    vol. 11, 6437, Springer Nature, 2020, doi:<a href="https://doi.org/10.1038/s41467-020-20286-x">10.1038/s41467-020-20286-x</a>.
  short: F. Fäßler, G.A. Dimchev, V.-V. Hodirnau, W. Wan, F.K. Schur, Nature Communications
    11 (2020).
date_created: 2020-12-23T08:25:45Z
date_published: 2020-12-22T00:00:00Z
date_updated: 2023-08-24T11:01:50Z
day: '22'
ddc:
- '570'
department:
- _id: FlSc
- _id: EM-Fac
doi: 10.1038/s41467-020-20286-x
external_id:
  isi:
  - '000603078000003'
file:
- access_level: open_access
  checksum: 55d43ea0061cc4027ba45e966e1db8cc
  content_type: application/pdf
  creator: dernst
  date_created: 2020-12-28T08:16:10Z
  date_updated: 2020-12-28T08:16:10Z
  file_id: '8975'
  file_name: 2020_NatureComm_Faessler.pdf
  file_size: 3958727
  relation: main_file
  success: 1
file_date_updated: 2020-12-28T08:16:10Z
has_accepted_license: '1'
intvolume: '        11'
isi: 1
keyword:
- General Biochemistry
- Genetics and Molecular Biology
- General Physics and Astronomy
- General Chemistry
language:
- iso: eng
month: '12'
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
- _id: 2674F658-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: M02495
  name: Protein structure and function in filopodia across scales
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  link:
  - description: News on IST Homepage
    relation: press_release
    url: https://ist.ac.at/en/news/cutting-edge-technology-reveals-structures-within-cells/
scopus_import: '1'
status: public
title: Cryo-electron tomography structure of Arp2/3 complex in cells reveals new insights
  into the branch junction
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: 11
year: '2020'
...
---
_id: '9654'
abstract:
- lang: eng
  text: RNA polymerase I (Pol I) is a highly processive enzyme that transcribes ribosomal
    DNA (rDNA) and regulates growth of eukaryotic cells. Crystal structures of free
    Pol I from the yeast Saccharomyces cerevisiae have revealed dimers of the enzyme
    stabilized by a 'connector' element and an expanded cleft containing the active
    centre in an inactive conformation. The central bridge helix was unfolded and
    a Pol-I-specific 'expander' element occupied the DNA-template-binding site. The
    structure of Pol I in its active transcribing conformation has yet to be determined,
    whereas structures of Pol II and Pol III have been solved with bound DNA template
    and RNA transcript. Here we report structures of active transcribing Pol I from
    yeast solved by two different cryo-electron microscopy approaches. A single-particle
    structure at 3.8 Å resolution reveals a contracted active centre cleft with bound
    DNA and RNA, and a narrowed pore beneath the active site that no longer holds
    the RNA-cleavage-stimulating domain of subunit A12.2. A structure at 29 Å resolution
    that was determined from cryo-electron tomograms of Pol I enzymes transcribing
    cellular rDNA confirms contraction of the cleft and reveals that incoming and
    exiting rDNA enclose an angle of around 150°. The structures suggest a model for
    the regulation of transcription elongation in which contracted and expanded polymerase
    conformations are associated with active and inactive states, respectively.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Simon
  full_name: Neyer, Simon
  last_name: Neyer
- first_name: Michael
  full_name: Kunz, Michael
  last_name: Kunz
- first_name: Christian
  full_name: Geiss, Christian
  last_name: Geiss
- first_name: Merle
  full_name: Hantsche, Merle
  last_name: Hantsche
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
- first_name: Anja
  full_name: Seybert, Anja
  last_name: Seybert
- first_name: Christoph
  full_name: Engel, Christoph
  last_name: Engel
- first_name: Margot P.
  full_name: Scheffer, Margot P.
  last_name: Scheffer
- first_name: Patrick
  full_name: Cramer, Patrick
  last_name: Cramer
- first_name: Achilleas S.
  full_name: Frangakis, Achilleas S.
  last_name: Frangakis
citation:
  ama: Neyer S, Kunz M, Geiss C, et al. Structure of RNA polymerase I transcribing
    ribosomal DNA genes. <i>Nature</i>. 2016;540(7634):607-610. doi:<a href="https://doi.org/10.1038/nature20561">10.1038/nature20561</a>
  apa: Neyer, S., Kunz, M., Geiss, C., Hantsche, M., Hodirnau, V.-V., Seybert, A.,
    … Frangakis, A. S. (2016). Structure of RNA polymerase I transcribing ribosomal
    DNA genes. <i>Nature</i>. Springer Nature. <a href="https://doi.org/10.1038/nature20561">https://doi.org/10.1038/nature20561</a>
  chicago: Neyer, Simon, Michael Kunz, Christian Geiss, Merle Hantsche, Victor-Valentin
    Hodirnau, Anja Seybert, Christoph Engel, Margot P. Scheffer, Patrick Cramer, and
    Achilleas S. Frangakis. “Structure of RNA Polymerase I Transcribing Ribosomal
    DNA Genes.” <i>Nature</i>. Springer Nature, 2016. <a href="https://doi.org/10.1038/nature20561">https://doi.org/10.1038/nature20561</a>.
  ieee: S. Neyer <i>et al.</i>, “Structure of RNA polymerase I transcribing ribosomal
    DNA genes,” <i>Nature</i>, vol. 540, no. 7634. Springer Nature, pp. 607–610, 2016.
  ista: Neyer S, Kunz M, Geiss C, Hantsche M, Hodirnau V-V, Seybert A, Engel C, Scheffer
    MP, Cramer P, Frangakis AS. 2016. Structure of RNA polymerase I transcribing ribosomal
    DNA genes. Nature. 540(7634), 607–610.
  mla: Neyer, Simon, et al. “Structure of RNA Polymerase I Transcribing Ribosomal
    DNA Genes.” <i>Nature</i>, vol. 540, no. 7634, Springer Nature, 2016, pp. 607–10,
    doi:<a href="https://doi.org/10.1038/nature20561">10.1038/nature20561</a>.
  short: S. Neyer, M. Kunz, C. Geiss, M. Hantsche, V.-V. Hodirnau, A. Seybert, C.
    Engel, M.P. Scheffer, P. Cramer, A.S. Frangakis, Nature 540 (2016) 607–610.
date_created: 2021-07-14T09:04:24Z
date_published: 2016-12-22T00:00:00Z
date_updated: 2021-07-22T09:22:20Z
day: '22'
doi: 10.1038/nature20561
extern: '1'
external_id:
  pmid:
  - '27842382'
intvolume: '       540'
issue: '7634'
language:
- iso: eng
month: '12'
oa_version: None
page: 607-610
pmid: 1
publication: Nature
publication_identifier:
  eissn:
  - 1476-4687
  issn:
  - 0028-0836
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Structure of RNA polymerase I transcribing ribosomal DNA genes
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 540
year: '2016'
...
---
_id: '9655'
abstract:
- lang: eng
  text: Correlative microscopy incorporates the specificity of fluorescent protein
    labeling into high-resolution electron micrographs. Several approaches exist for
    correlative microscopy, most of which have used the green fluorescent protein
    (GFP) as the label for light microscopy. Here we use chemical tagging and synthetic
    fluorophores instead, in order to achieve protein-specific labeling, and to perform
    multicolor imaging. We show that synthetic fluorophores preserve their post-embedding
    fluorescence in the presence of uranyl acetate. Post-embedding fluorescence is
    of such quality that the specimen can be prepared with identical protocols for
    scanning electron microscopy (SEM) and transmission electron microscopy (TEM);
    this is particularly valuable when singular or otherwise difficult samples are
    examined. We show that synthetic fluorophores give bright, well-resolved signals
    in super-resolution light microscopy, enabling us to superimpose light microscopic
    images with a precision of up to 25 nm in the x–y plane on electron micrographs.
    To exemplify the preservation quality of our new method we visualize the molecular
    arrangement of cadherins in adherens junctions of mouse epithelial cells.
article_processing_charge: No
article_type: original
author:
- first_name: Mario
  full_name: Perkovic, Mario
  last_name: Perkovic
- first_name: Michael
  full_name: Kunz, Michael
  last_name: Kunz
- first_name: Ulrike
  full_name: Endesfelder, Ulrike
  last_name: Endesfelder
- first_name: Stefanie
  full_name: Bunse, Stefanie
  last_name: Bunse
- first_name: Christoph
  full_name: Wigge, Christoph
  last_name: Wigge
- first_name: Zhou
  full_name: Yu, Zhou
  last_name: Yu
- first_name: Victor-Valentin
  full_name: Hodirnau, Victor-Valentin
  id: 3661B498-F248-11E8-B48F-1D18A9856A87
  last_name: Hodirnau
- first_name: Margot P.
  full_name: Scheffer, Margot P.
  last_name: Scheffer
- first_name: Anja
  full_name: Seybert, Anja
  last_name: Seybert
- first_name: Sebastian
  full_name: Malkusch, Sebastian
  last_name: Malkusch
- first_name: Erin M.
  full_name: Schuman, Erin M.
  last_name: Schuman
- first_name: Mike
  full_name: Heilemann, Mike
  last_name: Heilemann
- first_name: Achilleas S.
  full_name: Frangakis, Achilleas S.
  last_name: Frangakis
citation:
  ama: Perkovic M, Kunz M, Endesfelder U, et al. Correlative light- and electron microscopy
    with chemical tags. <i>Journal of Structural Biology</i>. 2014;186(2):205-213.
    doi:<a href="https://doi.org/10.1016/j.jsb.2014.03.018">10.1016/j.jsb.2014.03.018</a>
  apa: Perkovic, M., Kunz, M., Endesfelder, U., Bunse, S., Wigge, C., Yu, Z., … Frangakis,
    A. S. (2014). Correlative light- and electron microscopy with chemical tags. <i>Journal
    of Structural Biology</i>. Elsevier. <a href="https://doi.org/10.1016/j.jsb.2014.03.018">https://doi.org/10.1016/j.jsb.2014.03.018</a>
  chicago: Perkovic, Mario, Michael Kunz, Ulrike Endesfelder, Stefanie Bunse, Christoph
    Wigge, Zhou Yu, Victor-Valentin Hodirnau, et al. “Correlative Light- and Electron
    Microscopy with Chemical Tags.” <i>Journal of Structural Biology</i>. Elsevier,
    2014. <a href="https://doi.org/10.1016/j.jsb.2014.03.018">https://doi.org/10.1016/j.jsb.2014.03.018</a>.
  ieee: M. Perkovic <i>et al.</i>, “Correlative light- and electron microscopy with
    chemical tags,” <i>Journal of Structural Biology</i>, vol. 186, no. 2. Elsevier,
    pp. 205–213, 2014.
  ista: Perkovic M, Kunz M, Endesfelder U, Bunse S, Wigge C, Yu Z, Hodirnau V-V, Scheffer
    MP, Seybert A, Malkusch S, Schuman EM, Heilemann M, Frangakis AS. 2014. Correlative
    light- and electron microscopy with chemical tags. Journal of Structural Biology.
    186(2), 205–213.
  mla: Perkovic, Mario, et al. “Correlative Light- and Electron Microscopy with Chemical
    Tags.” <i>Journal of Structural Biology</i>, vol. 186, no. 2, Elsevier, 2014,
    pp. 205–13, doi:<a href="https://doi.org/10.1016/j.jsb.2014.03.018">10.1016/j.jsb.2014.03.018</a>.
  short: M. Perkovic, M. Kunz, U. Endesfelder, S. Bunse, C. Wigge, Z. Yu, V.-V. Hodirnau,
    M.P. Scheffer, A. Seybert, S. Malkusch, E.M. Schuman, M. Heilemann, A.S. Frangakis,
    Journal of Structural Biology 186 (2014) 205–213.
date_created: 2021-07-14T09:05:42Z
date_published: 2014-05-01T00:00:00Z
date_updated: 2021-07-22T08:26:32Z
day: '01'
ddc:
- '570'
doi: 10.1016/j.jsb.2014.03.018
extern: '1'
external_id:
  pmid:
  - '24698954'
file:
- access_level: open_access
  checksum: a322991b43cdc5935c99db88d285aa3a
  content_type: application/pdf
  creator: asandaue
  date_created: 2021-07-22T08:06:34Z
  date_updated: 2021-07-22T08:06:34Z
  file_id: '9701'
  file_name: 2014_JournalOfStructuralBiology_Perkovic.pdf
  file_size: 3454628
  relation: main_file
  success: 1
file_date_updated: 2021-07-22T08:06:34Z
has_accepted_license: '1'
intvolume: '       186'
issue: '2'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/3.0/
month: '05'
oa: 1
oa_version: Published Version
page: 205-213
pmid: 1
publication: Journal of Structural Biology
publication_identifier:
  issn:
  - 1047-8477
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Correlative light- and electron microscopy with chemical tags
tmp:
  image: /images/cc_by_nc_nd.png
  legal_code_url: https://creativecommons.org/licenses/by-nc-nd/3.0/legalcode
  name: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported (CC BY-NC-ND
    3.0)
  short: CC BY-NC-ND (3.0)
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 186
year: '2014'
...
