---
_id: '1867'
abstract:
- lang: eng
  text: Cultured mammalian cells essential are model systems in basic biology research,
    production platforms of proteins for medical use, and testbeds in synthetic biology.
    Flavin cofactors, in particular flavin mononucleotide (FMN) and flavin adenine
    dinucleotide (FAD), are critical for cellular redox reactions and sense light
    in naturally occurring photoreceptors and optogenetic tools. Here, we quantified
    flavin contents of commonly used mammalian cell lines. We first compared three
    procedures for extraction of free and noncovalently protein-bound flavins and
    verified extraction using fluorescence spectroscopy. For separation, two CE methods
    with different BGEs were established, and detection was performed by LED-induced
    fluorescence with limit of detections (LODs 0.5-3.8 nM). We found that riboflavin
    (RF), FMN, and FAD contents varied significantly between cell lines. RF (3.1-14
    amol/cell) and FAD (2.2-17.0 amol/cell) were the predominant flavins, while FMN
    (0.46-3.4 amol/cell) was found at markedly lower levels. Observed flavin contents
    agree with those previously extracted from mammalian tissues, yet reduced forms
    of RF were detected that were not described previously. Quantification of flavins
    in mammalian cell lines will allow a better understanding of cellular redox reactions
    and optogenetic tools.
author:
- first_name: Jens
  full_name: Hühner, Jens
  last_name: Hühner
- first_name: Álvaro
  full_name: Inglés Prieto, Álvaro
  id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
  last_name: Inglés Prieto
  orcid: 0000-0002-5409-8571
- first_name: Christian
  full_name: Neusüß, Christian
  last_name: Neusüß
- first_name: Michael
  full_name: Lämmerhofer, Michael
  last_name: Lämmerhofer
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
citation:
  ama: Hühner J, Inglés Prieto Á, Neusüß C, Lämmerhofer M, Janovjak HL. Quantification
    of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian
    model cells by CE with LED-induced fluorescence detection. <i>Electrophoresis</i>.
    2015;36(4):518-525. doi:<a href="https://doi.org/10.1002/elps.201400451">10.1002/elps.201400451</a>
  apa: Hühner, J., Inglés Prieto, Á., Neusüß, C., Lämmerhofer, M., &#38; Janovjak,
    H. L. (2015). Quantification of riboflavin, flavin mononucleotide, and flavin
    adenine dinucleotide in mammalian model cells by CE with LED-induced fluorescence
    detection. <i>Electrophoresis</i>. Wiley. <a href="https://doi.org/10.1002/elps.201400451">https://doi.org/10.1002/elps.201400451</a>
  chicago: Hühner, Jens, Álvaro Inglés Prieto, Christian Neusüß, Michael Lämmerhofer,
    and Harald L Janovjak. “Quantification of Riboflavin, Flavin Mononucleotide, and
    Flavin Adenine Dinucleotide in Mammalian Model Cells by CE with LED-Induced Fluorescence
    Detection.” <i>Electrophoresis</i>. Wiley, 2015. <a href="https://doi.org/10.1002/elps.201400451">https://doi.org/10.1002/elps.201400451</a>.
  ieee: J. Hühner, Á. Inglés Prieto, C. Neusüß, M. Lämmerhofer, and H. L. Janovjak,
    “Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide
    in mammalian model cells by CE with LED-induced fluorescence detection,” <i>Electrophoresis</i>,
    vol. 36, no. 4. Wiley, pp. 518–525, 2015.
  ista: Hühner J, Inglés Prieto Á, Neusüß C, Lämmerhofer M, Janovjak HL. 2015. Quantification
    of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide in mammalian
    model cells by CE with LED-induced fluorescence detection. Electrophoresis. 36(4),
    518–525.
  mla: Hühner, Jens, et al. “Quantification of Riboflavin, Flavin Mononucleotide,
    and Flavin Adenine Dinucleotide in Mammalian Model Cells by CE with LED-Induced
    Fluorescence Detection.” <i>Electrophoresis</i>, vol. 36, no. 4, Wiley, 2015,
    pp. 518–25, doi:<a href="https://doi.org/10.1002/elps.201400451">10.1002/elps.201400451</a>.
  short: J. Hühner, Á. Inglés Prieto, C. Neusüß, M. Lämmerhofer, H.L. Janovjak, Electrophoresis
    36 (2015) 518–525.
date_created: 2018-12-11T11:54:26Z
date_published: 2015-02-01T00:00:00Z
date_updated: 2021-01-12T06:53:43Z
day: '01'
department:
- _id: HaJa
doi: 10.1002/elps.201400451
ec_funded: 1
intvolume: '        36'
issue: '4'
language:
- iso: eng
month: '02'
oa_version: None
page: 518 - 525
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
  grant_number: RGY0084/2012
  name: In situ real-time imaging of neurotransmitter signaling using designer optical
    sensors (HFSP Young Investigator)
publication: Electrophoresis
publication_status: published
publisher: Wiley
publist_id: '5230'
pubrep_id: '836'
quality_controlled: '1'
scopus_import: 1
status: public
title: Quantification of riboflavin, flavin mononucleotide, and flavin adenine dinucleotide
  in mammalian model cells by CE with LED-induced fluorescence detection
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 36
year: '2015'
...
---
_id: '1549'
abstract:
- lang: eng
  text: Nature has incorporated small photochromic molecules, colloquially termed
    'photoswitches', in photoreceptor proteins to sense optical cues in photo-taxis
    and vision. While Nature's ability to employ light-responsive functionalities
    has long been recognized, it was not until recently that scientists designed,
    synthesized and applied synthetic photochromes to manipulate many of which open
    rapidly and locally in their native cell types, biological processes with the
    temporal and spatial resolution of light. Ion channels in particular have come
    to the forefront of proteins that can be put under the designer control of synthetic
    photochromes. Photochromic ion channel controllers are comprised of three classes,
    photochromic soluble ligands (PCLs), photochromic tethered ligands (PTLs) and
    photochromic crosslinkers (PXs), and in each class ion channel functionality is
    controlled through reversible changes in photochrome structure. By acting as light-dependent
    ion channel agonists, antagonist or modulators, photochromic controllers effectively
    converted a wide range of ion channels, including voltage-gated ion channels,
    'leak channels', tri-, tetra- and pentameric ligand-gated ion channels, and temperaturesensitive
    ion channels, into man-made photoreceptors. Control by photochromes can be reversible,
    unlike in the case of 'caged' compounds, and non-invasive with high spatial precision,
    unlike pharmacology and electrical manipulation. Here, we introduce design principles
    of emerging photochromic molecules that act on ion channels and discuss the impact
    that these molecules are beginning to have on ion channel biophysics and neuronal
    physiology.
author:
- first_name: Catherine
  full_name: Mckenzie, Catherine
  id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87
  last_name: Mckenzie
- first_name: Inmaculada
  full_name: Sanchez Romero, Inmaculada
  id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87
  last_name: Sanchez Romero
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
citation:
  ama: 'Mckenzie C, Sanchez-Romero I, Janovjak HL. Flipping the photoswitch: Ion channels
    under light control. In: <i>Novel Chemical Tools to Study Ion Channel Biology</i>.
    Vol 869. Advances in Experimental Medicine and Biology. Springer; 2015:101-117.
    doi:<a href="https://doi.org/10.1007/978-1-4939-2845-3_6">10.1007/978-1-4939-2845-3_6</a>'
  apa: 'Mckenzie, C., Sanchez-Romero, I., &#38; Janovjak, H. L. (2015). Flipping the
    photoswitch: Ion channels under light control. In <i>Novel chemical tools to study
    ion channel biology</i> (Vol. 869, pp. 101–117). Springer. <a href="https://doi.org/10.1007/978-1-4939-2845-3_6">https://doi.org/10.1007/978-1-4939-2845-3_6</a>'
  chicago: 'Mckenzie, Catherine, Inmaculada Sanchez-Romero, and Harald L Janovjak.
    “Flipping the Photoswitch: Ion Channels under Light Control.” In <i>Novel Chemical
    Tools to Study Ion Channel Biology</i>, 869:101–17. Advances in Experimental Medicine
    and Biology. Springer, 2015. <a href="https://doi.org/10.1007/978-1-4939-2845-3_6">https://doi.org/10.1007/978-1-4939-2845-3_6</a>.'
  ieee: 'C. Mckenzie, I. Sanchez-Romero, and H. L. Janovjak, “Flipping the photoswitch:
    Ion channels under light control,” in <i>Novel chemical tools to study ion channel
    biology</i>, vol. 869, Springer, 2015, pp. 101–117.'
  ista: 'Mckenzie C, Sanchez-Romero I, Janovjak HL. 2015.Flipping the photoswitch:
    Ion channels under light control. In: Novel chemical tools to study ion channel
    biology. vol. 869, 101–117.'
  mla: 'Mckenzie, Catherine, et al. “Flipping the Photoswitch: Ion Channels under
    Light Control.” <i>Novel Chemical Tools to Study Ion Channel Biology</i>, vol.
    869, Springer, 2015, pp. 101–17, doi:<a href="https://doi.org/10.1007/978-1-4939-2845-3_6">10.1007/978-1-4939-2845-3_6</a>.'
  short: C. Mckenzie, I. Sanchez-Romero, H.L. Janovjak, in:, Novel Chemical Tools
    to Study Ion Channel Biology, Springer, 2015, pp. 101–117.
date_created: 2018-12-11T11:52:39Z
date_published: 2015-09-18T00:00:00Z
date_updated: 2021-01-12T06:51:32Z
day: '18'
ddc:
- '571'
- '576'
department:
- _id: HaJa
doi: 10.1007/978-1-4939-2845-3_6
file:
- access_level: open_access
  checksum: bd1bfdf2423a0c3b6e7cabfa8b44bc0f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:02Z
  date_updated: 2020-07-14T12:45:01Z
  file_id: '4854'
  file_name: IST-2017-839-v1+1_mckenzie.pdf
  file_size: 1919655
  relation: main_file
file_date_updated: 2020-07-14T12:45:01Z
has_accepted_license: '1'
intvolume: '       869'
language:
- iso: eng
month: '09'
oa: 1
oa_version: Submitted Version
page: 101 - 117
publication: Novel chemical tools to study ion channel biology
publication_identifier:
  isbn:
  - 978-1-4939-2844-6
publication_status: published
publisher: Springer
publist_id: '5622'
pubrep_id: '839'
quality_controlled: '1'
scopus_import: 1
series_title: Advances in Experimental Medicine and Biology
status: public
title: 'Flipping the photoswitch: Ion channels under light control'
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 869
year: '2015'
...
---
_id: '1611'
abstract:
- lang: eng
  text: Biosensors for signaling molecules allow the study of physiological processes
    by bringing together the fields of protein engineering, fluorescence imaging,
    and cell biology. Construction of genetically encoded biosensors generally relies
    on the availability of a binding &quot;core&quot; that is both specific and stable,
    which can then be combined with fluorescent molecules to create a sensor. However,
    binding proteins with the desired properties are often not available in nature
    and substantial improvement to sensors can be required, particularly with regard
    to their durability. Ancestral protein reconstruction is a powerful protein-engineering
    tool able to generate highly stable and functional proteins. In this work, we
    sought to establish the utility of ancestral protein reconstruction to biosensor
    development, beginning with the construction of an l-arginine biosensor. l-arginine,
    as the immediate precursor to nitric oxide, is an important molecule in many physiological
    contexts including brain function. Using a combination of ancestral reconstruction
    and circular permutation, we constructed a Förster resonance energy transfer (FRET)
    biosensor for l-arginine (cpFLIPR). cpFLIPR displays high sensitivity and specificity,
    with a Kd of ∼14 μM and a maximal dynamic range of 35%. Importantly, cpFLIPR was
    highly robust, enabling accurate l-arginine measurement at physiological temperatures.
    We established that cpFLIPR is compatible with two-photon excitation fluorescence
    microscopy and report l-arginine concentrations in brain tissue.
author:
- first_name: Jason
  full_name: Whitfield, Jason
  last_name: Whitfield
- first_name: William
  full_name: Zhang, William
  last_name: Zhang
- first_name: Michel
  full_name: Herde, Michel
  last_name: Herde
- first_name: Ben
  full_name: Clifton, Ben
  last_name: Clifton
- first_name: Johanna
  full_name: Radziejewski, Johanna
  last_name: Radziejewski
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
- first_name: Christian
  full_name: Henneberger, Christian
  last_name: Henneberger
- first_name: Colin
  full_name: Jackson, Colin
  last_name: Jackson
citation:
  ama: Whitfield J, Zhang W, Herde M, et al. Construction of a robust and sensitive
    arginine biosensor through ancestral protein reconstruction. <i>Protein Science</i>.
    2015;24(9):1412-1422. doi:<a href="https://doi.org/10.1002/pro.2721">10.1002/pro.2721</a>
  apa: Whitfield, J., Zhang, W., Herde, M., Clifton, B., Radziejewski, J., Janovjak,
    H. L., … Jackson, C. (2015). Construction of a robust and sensitive arginine biosensor
    through ancestral protein reconstruction. <i>Protein Science</i>. Wiley. <a href="https://doi.org/10.1002/pro.2721">https://doi.org/10.1002/pro.2721</a>
  chicago: Whitfield, Jason, William Zhang, Michel Herde, Ben Clifton, Johanna Radziejewski,
    Harald L Janovjak, Christian Henneberger, and Colin Jackson. “Construction of
    a Robust and Sensitive Arginine Biosensor through Ancestral Protein Reconstruction.”
    <i>Protein Science</i>. Wiley, 2015. <a href="https://doi.org/10.1002/pro.2721">https://doi.org/10.1002/pro.2721</a>.
  ieee: J. Whitfield <i>et al.</i>, “Construction of a robust and sensitive arginine
    biosensor through ancestral protein reconstruction,” <i>Protein Science</i>, vol.
    24, no. 9. Wiley, pp. 1412–1422, 2015.
  ista: Whitfield J, Zhang W, Herde M, Clifton B, Radziejewski J, Janovjak HL, Henneberger
    C, Jackson C. 2015. Construction of a robust and sensitive arginine biosensor
    through ancestral protein reconstruction. Protein Science. 24(9), 1412–1422.
  mla: Whitfield, Jason, et al. “Construction of a Robust and Sensitive Arginine Biosensor
    through Ancestral Protein Reconstruction.” <i>Protein Science</i>, vol. 24, no.
    9, Wiley, 2015, pp. 1412–22, doi:<a href="https://doi.org/10.1002/pro.2721">10.1002/pro.2721</a>.
  short: J. Whitfield, W. Zhang, M. Herde, B. Clifton, J. Radziejewski, H.L. Janovjak,
    C. Henneberger, C. Jackson, Protein Science 24 (2015) 1412–1422.
date_created: 2018-12-11T11:53:01Z
date_published: 2015-09-01T00:00:00Z
date_updated: 2021-01-12T06:52:00Z
day: '01'
department:
- _id: HaJa
doi: 10.1002/pro.2721
external_id:
  pmid:
  - '26061224'
intvolume: '        24'
issue: '9'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4570536/
month: '09'
oa: 1
oa_version: Submitted Version
page: 1412 - 1422
pmid: 1
project:
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
  grant_number: RGY0084/2012
  name: In situ real-time imaging of neurotransmitter signaling using designer optical
    sensors (HFSP Young Investigator)
publication: Protein Science
publication_status: published
publisher: Wiley
publist_id: '5555'
quality_controlled: '1'
scopus_import: 1
status: public
title: Construction of a robust and sensitive arginine biosensor through ancestral
  protein reconstruction
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 24
year: '2015'
...
---
_id: '1844'
abstract:
- lang: eng
  text: 'Local protein interactions (&quot;molecular context&quot; effects) dictate
    amino acid replacements and can be described in terms of site-specific, energetic
    preferences for any different amino acid. It has been recently debated whether
    these preferences remain approximately constant during evolution or whether, due
    to coevolution of sites, they change strongly. Such research highlights an unresolved
    and fundamental issue with far-reaching implications for phylogenetic analysis
    and molecular evolution modeling. Here, we take advantage of the recent availability
    of phenotypically supported laboratory resurrections of Precambrian thioredoxins
    and β-lactamases to experimentally address the change of site-specific amino acid
    preferences over long geological timescales. Extensive mutational analyses support
    the notion that evolutionary adjustment to a new amino acid may occur, but to
    a large extent this is insufficient to erase the primitive preference for amino
    acid replacements. Generally, site-specific amino acid preferences appear to remain
    conserved throughout evolutionary history despite local sequence divergence. We
    show such preference conservation to be readily understandable in molecular terms
    and we provide crystallographic evidence for an intriguing structural-switch mechanism:
    Energetic preference for an ancestral amino acid in a modern protein can be linked
    to reorganization upon mutation to the ancestral local structure around the mutated
    site. Finally, we point out that site-specific preference conservation naturally
    leads to one plausible evolutionary explanation for the existence of intragenic
    global suppressor mutations.'
author:
- first_name: Valeria
  full_name: Risso, Valeria
  last_name: Risso
- first_name: Fadia
  full_name: Manssour Triedo, Fadia
  last_name: Manssour Triedo
- first_name: Asuncion
  full_name: Delgado Delgado, Asuncion
  last_name: Delgado Delgado
- first_name: Rocio
  full_name: Arco, Rocio
  last_name: Arco
- first_name: Alicia
  full_name: Barroso Deljesús, Alicia
  last_name: Barroso Deljesús
- first_name: Álvaro
  full_name: Inglés Prieto, Álvaro
  id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
  last_name: Inglés Prieto
  orcid: 0000-0002-5409-8571
- first_name: Raquel
  full_name: Godoy Ruiz, Raquel
  last_name: Godoy Ruiz
- first_name: Josè
  full_name: Gavira, Josè
  last_name: Gavira
- first_name: Eric
  full_name: Gaucher, Eric
  last_name: Gaucher
- first_name: Beatriz
  full_name: Ibarra Molero, Beatriz
  last_name: Ibarra Molero
- first_name: Jose
  full_name: Sánchez Ruiz, Jose
  last_name: Sánchez Ruiz
citation:
  ama: Risso V, Manssour Triedo F, Delgado Delgado A, et al. Mutational studies on
    resurrected ancestral proteins reveal conservation of site-specific amino acid
    preferences throughout evolutionary history. <i>Molecular Biology and Evolution</i>.
    2014;32(2):440-455. doi:<a href="https://doi.org/10.1093/molbev/msu312">10.1093/molbev/msu312</a>
  apa: Risso, V., Manssour Triedo, F., Delgado Delgado, A., Arco, R., Barroso Deljesús,
    A., Inglés Prieto, Á., … Sánchez Ruiz, J. (2014). Mutational studies on resurrected
    ancestral proteins reveal conservation of site-specific amino acid preferences
    throughout evolutionary history. <i>Molecular Biology and Evolution</i>. Oxford
    University Press. <a href="https://doi.org/10.1093/molbev/msu312">https://doi.org/10.1093/molbev/msu312</a>
  chicago: Risso, Valeria, Fadia Manssour Triedo, Asuncion Delgado Delgado, Rocio
    Arco, Alicia Barroso Deljesús, Álvaro Inglés Prieto, Raquel Godoy Ruiz, et al.
    “Mutational Studies on Resurrected Ancestral Proteins Reveal Conservation of Site-Specific
    Amino Acid Preferences throughout Evolutionary History.” <i>Molecular Biology
    and Evolution</i>. Oxford University Press, 2014. <a href="https://doi.org/10.1093/molbev/msu312">https://doi.org/10.1093/molbev/msu312</a>.
  ieee: V. Risso <i>et al.</i>, “Mutational studies on resurrected ancestral proteins
    reveal conservation of site-specific amino acid preferences throughout evolutionary
    history,” <i>Molecular Biology and Evolution</i>, vol. 32, no. 2. Oxford University
    Press, pp. 440–455, 2014.
  ista: Risso V, Manssour Triedo F, Delgado Delgado A, Arco R, Barroso Deljesús A,
    Inglés Prieto Á, Godoy Ruiz R, Gavira J, Gaucher E, Ibarra Molero B, Sánchez Ruiz
    J. 2014. Mutational studies on resurrected ancestral proteins reveal conservation
    of site-specific amino acid preferences throughout evolutionary history. Molecular
    Biology and Evolution. 32(2), 440–455.
  mla: Risso, Valeria, et al. “Mutational Studies on Resurrected Ancestral Proteins
    Reveal Conservation of Site-Specific Amino Acid Preferences throughout Evolutionary
    History.” <i>Molecular Biology and Evolution</i>, vol. 32, no. 2, Oxford University
    Press, 2014, pp. 440–55, doi:<a href="https://doi.org/10.1093/molbev/msu312">10.1093/molbev/msu312</a>.
  short: V. Risso, F. Manssour Triedo, A. Delgado Delgado, R. Arco, A. Barroso Deljesús,
    Á. Inglés Prieto, R. Godoy Ruiz, J. Gavira, E. Gaucher, B. Ibarra Molero, J. Sánchez
    Ruiz, Molecular Biology and Evolution 32 (2014) 440–455.
date_created: 2018-12-11T11:54:19Z
date_published: 2014-11-12T00:00:00Z
date_updated: 2021-01-12T06:53:34Z
day: '12'
ddc:
- '571'
department:
- _id: HaJa
doi: 10.1093/molbev/msu312
file:
- access_level: open_access
  checksum: 06215318e66be8f3e0c33abb07e9d3da
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:16:56Z
  date_updated: 2020-07-14T12:45:19Z
  file_id: '5247'
  file_name: IST-2016-430-v1+1_Mol_Biol_Evol-2015-Risso-440-55.pdf
  file_size: 1545246
  relation: main_file
file_date_updated: 2020-07-14T12:45:19Z
has_accepted_license: '1'
intvolume: '        32'
issue: '2'
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc/4.0/
month: '11'
oa: 1
oa_version: Published Version
page: 440 - 455
publication: Molecular Biology and Evolution
publication_status: published
publisher: Oxford University Press
publist_id: '5257'
pubrep_id: '430'
quality_controlled: '1'
scopus_import: 1
status: public
title: Mutational studies on resurrected ancestral proteins reveal conservation of
  site-specific amino acid preferences throughout evolutionary history
tmp:
  image: /images/cc_by_nc.png
  legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
  short: CC BY-NC (4.0)
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 32
year: '2014'
...
---
_id: '2032'
abstract:
- lang: eng
  text: As light-based control of fundamental signaling pathways is becoming a reality,
    the field of optogenetics is rapidly moving beyond neuroscience. We have recently
    developed receptor tyrosine kinases that are activated by light and control cell
    proliferation, epithelial–mesenchymal transition, and angiogenic sprouting—cell
    behaviors central to cancer progression.
article_number: e964045
author:
- first_name: Álvaro
  full_name: Inglés Prieto, Álvaro
  id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
  last_name: Inglés Prieto
  orcid: 0000-0002-5409-8571
- first_name: Eva
  full_name: Gschaider-Reichhart, Eva
  id: 3FEE232A-F248-11E8-B48F-1D18A9856A87
  last_name: Gschaider-Reichhart
  orcid: 0000-0002-7218-7738
- first_name: Karin
  full_name: Schelch, Karin
  last_name: Schelch
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
- first_name: Michael
  full_name: Grusch, Michael
  last_name: Grusch
citation:
  ama: 'Inglés Prieto Á, Gschaider-Reichhart E, Schelch K, Janovjak HL, Grusch M.
    The optogenetic promise for oncology: Episode I. <i>Molecular and Cellular Oncology</i>.
    2014;1(4). doi:<a href="https://doi.org/10.4161/23723548.2014.964045">10.4161/23723548.2014.964045</a>'
  apa: 'Inglés Prieto, Á., Gschaider-Reichhart, E., Schelch, K., Janovjak, H. L.,
    &#38; Grusch, M. (2014). The optogenetic promise for oncology: Episode I. <i>Molecular
    and Cellular Oncology</i>. Taylor &#38; Francis. <a href="https://doi.org/10.4161/23723548.2014.964045">https://doi.org/10.4161/23723548.2014.964045</a>'
  chicago: 'Inglés Prieto, Álvaro, Eva Gschaider-Reichhart, Karin Schelch, Harald
    L Janovjak, and Michael Grusch. “The Optogenetic Promise for Oncology: Episode
    I.” <i>Molecular and Cellular Oncology</i>. Taylor &#38; Francis, 2014. <a href="https://doi.org/10.4161/23723548.2014.964045">https://doi.org/10.4161/23723548.2014.964045</a>.'
  ieee: 'Á. Inglés Prieto, E. Gschaider-Reichhart, K. Schelch, H. L. Janovjak, and
    M. Grusch, “The optogenetic promise for oncology: Episode I,” <i>Molecular and
    Cellular Oncology</i>, vol. 1, no. 4. Taylor &#38; Francis, 2014.'
  ista: 'Inglés Prieto Á, Gschaider-Reichhart E, Schelch K, Janovjak HL, Grusch M.
    2014. The optogenetic promise for oncology: Episode I. Molecular and Cellular
    Oncology. 1(4), e964045.'
  mla: 'Inglés Prieto, Álvaro, et al. “The Optogenetic Promise for Oncology: Episode
    I.” <i>Molecular and Cellular Oncology</i>, vol. 1, no. 4, e964045, Taylor &#38;
    Francis, 2014, doi:<a href="https://doi.org/10.4161/23723548.2014.964045">10.4161/23723548.2014.964045</a>.'
  short: Á. Inglés Prieto, E. Gschaider-Reichhart, K. Schelch, H.L. Janovjak, M. Grusch,
    Molecular and Cellular Oncology 1 (2014).
date_created: 2018-12-11T11:55:19Z
date_published: 2014-12-31T00:00:00Z
date_updated: 2021-01-12T06:54:51Z
day: '31'
ddc:
- '570'
department:
- _id: HaJa
doi: 10.4161/23723548.2014.964045
file:
- access_level: open_access
  checksum: 44e17ad40577ab46eb602e88a8b0b8fd
  content_type: application/pdf
  creator: kschuh
  date_created: 2019-05-16T13:39:11Z
  date_updated: 2020-07-14T12:45:26Z
  file_id: '6464'
  file_name: 2014_Taylor_Alvaro.pdf
  file_size: 1765933
  relation: main_file
file_date_updated: 2020-07-14T12:45:26Z
has_accepted_license: '1'
intvolume: '         1'
issue: '4'
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
publication: Molecular and Cellular Oncology
publication_status: published
publisher: Taylor & Francis
publist_id: '5040'
quality_controlled: '1'
scopus_import: 1
status: public
title: 'The optogenetic promise for oncology: Episode I'
tmp:
  image: /images/cc_by_nc.png
  legal_code_url: https://creativecommons.org/licenses/by-nc/4.0/legalcode
  name: Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
  short: CC BY-NC (4.0)
type: journal_article
user_id: 3E5EF7F0-F248-11E8-B48F-1D18A9856A87
volume: 1
year: '2014'
...
---
_id: '2084'
abstract:
- lang: eng
  text: Receptor tyrosine kinases (RTKs) are a large family of cell surface receptors
    that sense growth factors and hormones and regulate a variety of cell behaviours
    in health and disease. Contactless activation of RTKs with spatial and temporal
    precision is currently not feasible. Here, we generated RTKs that are insensitive
    to endogenous ligands but can be selectively activated by low-intensity blue light.
    We screened light-oxygen-voltage (LOV)-sensing domains for their ability to activate
    RTKs by light-activated dimerization. Incorporation of LOV domains found in aureochrome
    photoreceptors of stramenopiles resulted in robust activation of the fibroblast
    growth factor receptor 1 (FGFR1), epidermal growth factor receptor (EGFR) and
    rearranged during transfection (RET). In human cancer and endothelial cells, light
    induced cellular signalling with spatial and temporal precision. Furthermore,
    light faithfully mimicked complex mitogenic and morphogenic cell behaviour induced
    by growth factors. RTKs under optical control (Opto-RTKs) provide a powerful optogenetic
    approach to actuate cellular signals and manipulate cell behaviour.
acknowledgement: European Union Seventh Framework Programme; Human Frontier Science
  Program; Oesterreichische Nationalbank Anniversary Fund 14211; Austrian Research
  Promotion Agency; FemTech
author:
- first_name: Michael
  full_name: Grusch, Michael
  last_name: Grusch
- first_name: Karin
  full_name: Schelch, Karin
  last_name: Schelch
- first_name: Robert
  full_name: Riedler, Robert
  last_name: Riedler
- first_name: Eva
  full_name: Gschaider-Reichhart, Eva
  id: 3FEE232A-F248-11E8-B48F-1D18A9856A87
  last_name: Gschaider-Reichhart
  orcid: 0000-0002-7218-7738
- first_name: Christopher
  full_name: Differ, Christopher
  last_name: Differ
- first_name: Walter
  full_name: Berger, Walter
  last_name: Berger
- first_name: Álvaro
  full_name: Inglés Prieto, Álvaro
  id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
  last_name: Inglés Prieto
  orcid: 0000-0002-5409-8571
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
citation:
  ama: Grusch M, Schelch K, Riedler R, et al. Spatio-temporally precise activation
    of engineered receptor tyrosine kinases by light. <i>EMBO Journal</i>. 2014;33(15):1713-1726.
    doi:<a href="https://doi.org/10.15252/embj.201387695">10.15252/embj.201387695</a>
  apa: Grusch, M., Schelch, K., Riedler, R., Gschaider-Reichhart, E., Differ, C.,
    Berger, W., … Janovjak, H. L. (2014). Spatio-temporally precise activation of
    engineered receptor tyrosine kinases by light. <i>EMBO Journal</i>. Wiley-Blackwell.
    <a href="https://doi.org/10.15252/embj.201387695">https://doi.org/10.15252/embj.201387695</a>
  chicago: Grusch, Michael, Karin Schelch, Robert Riedler, Eva Gschaider-Reichhart,
    Christopher Differ, Walter Berger, Álvaro Inglés Prieto, and Harald L Janovjak.
    “Spatio-Temporally Precise Activation of Engineered Receptor Tyrosine Kinases
    by Light.” <i>EMBO Journal</i>. Wiley-Blackwell, 2014. <a href="https://doi.org/10.15252/embj.201387695">https://doi.org/10.15252/embj.201387695</a>.
  ieee: M. Grusch <i>et al.</i>, “Spatio-temporally precise activation of engineered
    receptor tyrosine kinases by light,” <i>EMBO Journal</i>, vol. 33, no. 15. Wiley-Blackwell,
    pp. 1713–1726, 2014.
  ista: Grusch M, Schelch K, Riedler R, Gschaider-Reichhart E, Differ C, Berger W,
    Inglés Prieto Á, Janovjak HL. 2014. Spatio-temporally precise activation of engineered
    receptor tyrosine kinases by light. EMBO Journal. 33(15), 1713–1726.
  mla: Grusch, Michael, et al. “Spatio-Temporally Precise Activation of Engineered
    Receptor Tyrosine Kinases by Light.” <i>EMBO Journal</i>, vol. 33, no. 15, Wiley-Blackwell,
    2014, pp. 1713–26, doi:<a href="https://doi.org/10.15252/embj.201387695">10.15252/embj.201387695</a>.
  short: M. Grusch, K. Schelch, R. Riedler, E. Gschaider-Reichhart, C. Differ, W.
    Berger, Á. Inglés Prieto, H.L. Janovjak, EMBO Journal 33 (2014) 1713–1726.
date_created: 2018-12-11T11:55:37Z
date_published: 2014-07-01T00:00:00Z
date_updated: 2023-09-07T12:49:09Z
day: '01'
department:
- _id: HaJa
doi: 10.15252/embj.201387695
intvolume: '        33'
issue: '15'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4194103/
month: '07'
oa: 1
oa_version: Submitted Version
page: 1713 - 1726
publication: EMBO Journal
publication_status: published
publisher: Wiley-Blackwell
publist_id: '4953'
quality_controlled: '1'
related_material:
  record:
  - id: '418'
    relation: dissertation_contains
    status: public
scopus_import: 1
status: public
title: Spatio-temporally precise activation of engineered receptor tyrosine kinases
  by light
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2014'
...
---
_id: '2471'
abstract:
- lang: eng
  text: The impact of disulfide bonds on protein stability goes beyond simple equilibrium
    thermodynamics effects associated with the conformational entropy of the unfolded
    state. Indeed, disulfide crosslinks may play a role in the prevention of dysfunctional
    association and strongly affect the rates of irreversible enzyme inactivation,
    highly relevant in biotechnological applications. While these kinetic-stability
    effects remain poorly understood, by analogy with proposed mechanisms for processes
    of protein aggregation and fibrillogenesis, we propose that they may be determined
    by the properties of sparsely-populated, partially-unfolded intermediates. Here
    we report the successful design, on the basis of high temperature molecular-dynamics
    simulations, of six thermodynamically and kinetically stabilized variants of phytase
    from Citrobacter braakii (a biotechnologically important enzyme) with one, two
    or three engineered disulfides. Activity measurements and 3D crystal structure
    determination demonstrate that the engineered crosslinks do not cause dramatic
    alterations in the native structure. The inactivation kinetics for all the variants
    displays a strongly non-Arrhenius temperature dependence, with the time-scale
    for the irreversible denaturation process reaching a minimum at a given temperature
    within the range of the denaturation transition. We show this striking feature
    to be a signature of a key role played by a partially unfolded, intermediate state/ensemble.
    Energetic and mutational analyses confirm that the intermediate is highly unfolded
    (akin to a proposed critical intermediate in the misfolding of the prion protein),
    a result that explains the observed kinetic stabilization. Our results provide
    a rationale for the kinetic-stability consequences of disulfide-crosslink engineering
    and an experimental methodology to arrive at energetic/structural descriptions
    of the sparsely populated and elusive intermediates that play key roles in irreversible
    protein denaturation.
article_number: e70013
author:
- first_name: Inmaculada
  full_name: Sanchez Romero, Inmaculada
  id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87
  last_name: Sanchez Romero
- first_name: Antonio
  full_name: Ariza, Antonio
  last_name: Ariza
- first_name: Keith
  full_name: Wilson, Keith
  last_name: Wilson
- first_name: Michael
  full_name: Skjøt, Michael
  last_name: Skjøt
- first_name: Jesper
  full_name: Vind, Jesper
  last_name: Vind
- first_name: Leonardo
  full_name: De Maria, Leonardo
  last_name: De Maria
- first_name: Lars
  full_name: Skov, Lars
  last_name: Skov
- first_name: Jose
  full_name: Sánchez Ruiz, Jose
  last_name: Sánchez Ruiz
citation:
  ama: Sanchez-Romero I, Ariza A, Wilson K, et al. Mechanism of protein kinetic stabilization
    by engineered disulfide crosslinks. <i>PLoS One</i>. 2013;8(7). doi:<a href="https://doi.org/10.1371/journal.pone.0070013">10.1371/journal.pone.0070013</a>
  apa: Sanchez-Romero, I., Ariza, A., Wilson, K., Skjøt, M., Vind, J., De Maria, L.,
    … Sánchez Ruiz, J. (2013). Mechanism of protein kinetic stabilization by engineered
    disulfide crosslinks. <i>PLoS One</i>. Public Library of Science. <a href="https://doi.org/10.1371/journal.pone.0070013">https://doi.org/10.1371/journal.pone.0070013</a>
  chicago: Sanchez-Romero, Inmaculada, Antonio Ariza, Keith Wilson, Michael Skjøt,
    Jesper Vind, Leonardo De Maria, Lars Skov, and Jose Sánchez Ruiz. “Mechanism of
    Protein Kinetic Stabilization by Engineered Disulfide Crosslinks.” <i>PLoS One</i>.
    Public Library of Science, 2013. <a href="https://doi.org/10.1371/journal.pone.0070013">https://doi.org/10.1371/journal.pone.0070013</a>.
  ieee: I. Sanchez-Romero <i>et al.</i>, “Mechanism of protein kinetic stabilization
    by engineered disulfide crosslinks,” <i>PLoS One</i>, vol. 8, no. 7. Public Library
    of Science, 2013.
  ista: Sanchez-Romero I, Ariza A, Wilson K, Skjøt M, Vind J, De Maria L, Skov L,
    Sánchez Ruiz J. 2013. Mechanism of protein kinetic stabilization by engineered
    disulfide crosslinks. PLoS One. 8(7), e70013.
  mla: Sanchez-Romero, Inmaculada, et al. “Mechanism of Protein Kinetic Stabilization
    by Engineered Disulfide Crosslinks.” <i>PLoS One</i>, vol. 8, no. 7, e70013, Public
    Library of Science, 2013, doi:<a href="https://doi.org/10.1371/journal.pone.0070013">10.1371/journal.pone.0070013</a>.
  short: I. Sanchez-Romero, A. Ariza, K. Wilson, M. Skjøt, J. Vind, L. De Maria, L.
    Skov, J. Sánchez Ruiz, PLoS One 8 (2013).
date_created: 2018-12-11T11:57:51Z
date_published: 2013-07-30T00:00:00Z
date_updated: 2021-01-12T06:57:41Z
day: '30'
ddc:
- '570'
department:
- _id: HaJa
doi: 10.1371/journal.pone.0070013
file:
- access_level: open_access
  checksum: c0c96cc76ed7ef0d036a31a7e33c9a37
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:15:07Z
  date_updated: 2020-07-14T12:45:41Z
  file_id: '5124'
  file_name: IST-2016-414-v1+1_journal.pone.0070013.pdf
  file_size: 1323666
  relation: main_file
file_date_updated: 2020-07-14T12:45:41Z
has_accepted_license: '1'
intvolume: '         8'
issue: '7'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
publication: PLoS One
publication_status: published
publisher: Public Library of Science
publist_id: '4430'
pubrep_id: '414'
quality_controlled: '1'
scopus_import: 1
status: public
title: Mechanism of protein kinetic stabilization by engineered disulfide crosslinks
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: 8
year: '2013'
...
---
_id: '2856'
abstract:
- lang: eng
  text: 'G protein–coupled receptors (GPCRs), the largest family of membrane signaling
    proteins, respond to neurotransmitters, hormones and small environmental molecules.
    The neuronal function of many GPCRs has been difficult to resolve because of an
    inability to gate them with subtype specificity, spatial precision, speed and
    reversibility. To address this, we developed an approach for opto-chemical engineering
    of native GPCRs. We applied this to the metabotropic glutamate receptors (mGluRs)
    to generate light-agonized and light-antagonized mGluRs (LimGluRs). The light-agonized
    LimGluR2, on which we focused, was fast, bistable and supported multiple rounds
    of on/off switching. Light gated two of the primary neuronal functions of mGluR2:
    suppression of excitability and inhibition of neurotransmitter release. We found
    that the light-antagonized tool LimGluR2-block was able to manipulate negative
    feedback of synaptically released glutamate on transmitter release. We generalized
    the optical control to two additional family members: mGluR3 and mGluR6. This
    system worked in rodent brain slices and in zebrafish in vivo, where we found
    that mGluR2 modulated the threshold for escape behavior. These light-gated mGluRs
    pave the way for determining the roles of mGluRs in synaptic plasticity, memory
    and disease.'
acknowledgement: National Science Foundation grants CHE-0233882 and CHE-0840505 (to
  the College of Chemistry at the University of California, Berkeley), a postdoctoral
  fellowship of the European Molecular Biology Organization (H.J.)
author:
- first_name: Joshua
  full_name: Levitz, Joshua
  last_name: Levitz
- first_name: Carlos
  full_name: Pantoja, Carlos
  last_name: Pantoja
- first_name: Benjamin
  full_name: Gaub, Benjamin
  last_name: Gaub
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
- first_name: Andreas
  full_name: Reiner, Andreas
  last_name: Reiner
- first_name: Adam
  full_name: Hoagland, Adam
  last_name: Hoagland
- first_name: David
  full_name: Schoppik, David
  last_name: Schoppik
- first_name: Brian
  full_name: Kane, Brian
  last_name: Kane
- first_name: Philipp
  full_name: Stawski, Philipp
  last_name: Stawski
- first_name: Alexander
  full_name: Schier, Alexander
  last_name: Schier
- first_name: Dirk
  full_name: Trauner, Dirk
  last_name: Trauner
- first_name: Ehud
  full_name: Isacoff, Ehud
  last_name: Isacoff
citation:
  ama: Levitz J, Pantoja C, Gaub B, et al. Optical control of metabotropic glutamate
    receptors. <i>Nature Neuroscience</i>. 2013;16:507-516. doi:<a href="https://doi.org/10.1038/nn.3346">10.1038/nn.3346</a>
  apa: Levitz, J., Pantoja, C., Gaub, B., Janovjak, H. L., Reiner, A., Hoagland, A.,
    … Isacoff, E. (2013). Optical control of metabotropic glutamate receptors. <i>Nature
    Neuroscience</i>. Nature Publishing Group. <a href="https://doi.org/10.1038/nn.3346">https://doi.org/10.1038/nn.3346</a>
  chicago: Levitz, Joshua, Carlos Pantoja, Benjamin Gaub, Harald L Janovjak, Andreas
    Reiner, Adam Hoagland, David Schoppik, et al. “Optical Control of Metabotropic
    Glutamate Receptors.” <i>Nature Neuroscience</i>. Nature Publishing Group, 2013.
    <a href="https://doi.org/10.1038/nn.3346">https://doi.org/10.1038/nn.3346</a>.
  ieee: J. Levitz <i>et al.</i>, “Optical control of metabotropic glutamate receptors,”
    <i>Nature Neuroscience</i>, vol. 16. Nature Publishing Group, pp. 507–516, 2013.
  ista: Levitz J, Pantoja C, Gaub B, Janovjak HL, Reiner A, Hoagland A, Schoppik D,
    Kane B, Stawski P, Schier A, Trauner D, Isacoff E. 2013. Optical control of metabotropic
    glutamate receptors. Nature Neuroscience. 16, 507–516.
  mla: Levitz, Joshua, et al. “Optical Control of Metabotropic Glutamate Receptors.”
    <i>Nature Neuroscience</i>, vol. 16, Nature Publishing Group, 2013, pp. 507–16,
    doi:<a href="https://doi.org/10.1038/nn.3346">10.1038/nn.3346</a>.
  short: J. Levitz, C. Pantoja, B. Gaub, H.L. Janovjak, A. Reiner, A. Hoagland, D.
    Schoppik, B. Kane, P. Stawski, A. Schier, D. Trauner, E. Isacoff, Nature Neuroscience
    16 (2013) 507–516.
date_created: 2018-12-11T11:59:57Z
date_published: 2013-03-03T00:00:00Z
date_updated: 2021-01-12T07:00:16Z
day: '03'
department:
- _id: HaJa
doi: 10.1038/nn.3346
external_id:
  pmid:
  - '23455609'
intvolume: '        16'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3681425/
month: '03'
oa: 1
oa_version: Submitted Version
page: 507 - 516
pmid: 1
publication: Nature Neuroscience
publication_status: published
publisher: Nature Publishing Group
publist_id: '3936'
quality_controlled: '1'
scopus_import: 1
status: public
title: Optical control of metabotropic glutamate receptors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 16
year: '2013'
...
---
_id: '2857'
abstract:
- lang: eng
  text: In the vibrant field of optogenetics, optics and genetic targeting are combined
    to commandeer cellular functions, such as the neuronal action potential, by optically
    stimulating light-sensitive ion channels expressed in the cell membrane. One broadly
    applicable manifestation of this approach are covalently attached photochromic
    tethered ligands (PTLs) that allow activating ligand-gated ion channels with outstanding
    spatial and temporal resolution. Here, we describe all steps towards the successful
    development and application of PTL-gated ion channels in cell lines and primary
    cells. The basis for these experiments forms a combination of molecular modeling,
    genetic engineering, cell culture, and electrophysiology. The light-gated glutamate
    receptor (LiGluR), which consists of the PTL-functionalized GluK2 receptor, serves
    as a model.
alternative_title:
- MIMB
author:
- first_name: Stephanie
  full_name: Szobota, Stephanie
  last_name: Szobota
- first_name: Catherine
  full_name: Mckenzie, Catherine
  id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87
  last_name: Mckenzie
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
citation:
  ama: Szobota S, Mckenzie C, Janovjak HL. Optical control of ligand-gated ion channels.
    <i>Methods in Molecular Biology</i>. 2013;998:417-435. doi:<a href="https://doi.org/10.1007/978-1-62703-351-0_32">10.1007/978-1-62703-351-0_32</a>
  apa: Szobota, S., Mckenzie, C., &#38; Janovjak, H. L. (2013). Optical control of
    ligand-gated ion channels. <i>Methods in Molecular Biology</i>. Springer. <a href="https://doi.org/10.1007/978-1-62703-351-0_32">https://doi.org/10.1007/978-1-62703-351-0_32</a>
  chicago: Szobota, Stephanie, Catherine Mckenzie, and Harald L Janovjak. “Optical
    Control of Ligand-Gated Ion Channels.” <i>Methods in Molecular Biology</i>. Springer,
    2013. <a href="https://doi.org/10.1007/978-1-62703-351-0_32">https://doi.org/10.1007/978-1-62703-351-0_32</a>.
  ieee: S. Szobota, C. Mckenzie, and H. L. Janovjak, “Optical control of ligand-gated
    ion channels,” <i>Methods in Molecular Biology</i>, vol. 998. Springer, pp. 417–435,
    2013.
  ista: Szobota S, Mckenzie C, Janovjak HL. 2013. Optical control of ligand-gated
    ion channels. Methods in Molecular Biology. 998, 417–435.
  mla: Szobota, Stephanie, et al. “Optical Control of Ligand-Gated Ion Channels.”
    <i>Methods in Molecular Biology</i>, vol. 998, Springer, 2013, pp. 417–35, doi:<a
    href="https://doi.org/10.1007/978-1-62703-351-0_32">10.1007/978-1-62703-351-0_32</a>.
  short: S. Szobota, C. Mckenzie, H.L. Janovjak, Methods in Molecular Biology 998
    (2013) 417–435.
date_created: 2018-12-11T11:59:57Z
date_published: 2013-02-22T00:00:00Z
date_updated: 2021-01-12T07:00:17Z
day: '22'
ddc:
- '570'
department:
- _id: HaJa
doi: 10.1007/978-1-62703-351-0_32
ec_funded: 1
file:
- access_level: open_access
  checksum: 1701f0d989f27ddac471b19a894ec0d1
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:12:34Z
  date_updated: 2020-07-14T12:45:51Z
  file_id: '4952'
  file_name: IST-2017-834-v1+1_szobota.pdf
  file_size: 336734
  relation: main_file
file_date_updated: 2020-07-14T12:45:51Z
has_accepted_license: '1'
intvolume: '       998'
language:
- iso: eng
month: '02'
oa: 1
oa_version: Submitted Version
page: 417 - 435
project:
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
  grant_number: RGY0084/2012
  name: In situ real-time imaging of neurotransmitter signaling using designer optical
    sensors (HFSP Young Investigator)
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
publication: Methods in Molecular Biology
publication_status: published
publisher: Springer
publist_id: '3932'
pubrep_id: '834'
quality_controlled: '1'
scopus_import: 1
status: public
title: Optical control of ligand-gated ion channels
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 998
year: '2013'
...
---
_id: '505'
abstract:
- lang: eng
  text: Alkyd resins are polyesters containing unsaturated fatty acids that are used
    as binding agents in paints and coatings. Chemical drying of these polyesters
    is based on heavy metal catalyzed cross-linking of the unsaturated fatty acid
    moieties. Among the heavy-metal catalysts, cobalt complexes are the most effective,
    yet they have been proven to be carcinogenic. Therefore, strategies to replace
    the cobalt-based catalyst by environmentally friendlier and less toxic alternatives
    are under development. Here, we demonstrate for the first time that a laccase-mediator
    system can effectively replace the heavy-metal catalyst and cross-link alkyd resins.
    Interestingly, the biocatalytic reaction does not only work in aqueous media,
    but also in a solid film, where enzyme diffusion is limited. Within the catalytic
    cycle, the mediator oxidizes the alkyd resin and is regenerated by the laccase,
    which is uniformly distributed within the drying film as evidenced by confocal
    laser scanning microscopy. During gradual build-up of molecular weight, there
    is a concomitant decrease of the oxygen content in the film. A new optical sensor
    to follow oxygen consumption during the cross-linking reaction was developed and
    validated with state of the art techniques. A remarkable feature is the low sample
    amount required, which allows faster screening of new catalysts.
acknowledgement: "This study was performed within the Austrian Centre of Indus-\r\ntrial
  Biotechnology ACIB and the COST Action 868. This work\r\nhas been supported by the
  Federal Ministry of Economy,\r\nFamily and Youth (BMWFJ), the Federal Ministry of
  Tra\r\nffi\r\nc,\r\nInnovation and Technology (bmvit), the Styrian Business\r\nPromotion
  Agency SFG, the Standortagentur Tirol and ZIT\r\n–\r\nTechnology  Agency  of  the
  \ City  of  Vienna  through  the\r\nCOMET-Funding Program managed by the Austrian
  Research\r\nPromotion Agency FFG. Dr Massimiliano Cardinale (Institute of\r\nEnvironmental
  Biotechnology, TU Graz) is gratefully acknowl-\r\nedged for technical support with
  the CLSM measurements."
author:
- first_name: Katrin
  full_name: Greimel, Katrin
  last_name: Greimel
- first_name: Veronika
  full_name: Perz, Veronika
  last_name: Perz
- first_name: Klaus
  full_name: Koren, Klaus
  id: 382FBD6A-F248-11E8-B48F-1D18A9856A87
  last_name: Koren
- first_name: Roland
  full_name: Feola, Roland
  last_name: Feola
- first_name: Armin
  full_name: Temel, Armin
  last_name: Temel
- first_name: Christian
  full_name: Sohar, Christian
  last_name: Sohar
- first_name: Enrique
  full_name: Herrero Acero, Enrique
  last_name: Herrero Acero
- first_name: Ingo
  full_name: Klimant, Ingo
  last_name: Klimant
- first_name: Georg
  full_name: Guebitz, Georg
  last_name: Guebitz
citation:
  ama: 'Greimel K, Perz V, Koren K, et al. Banning toxic heavy-metal catalysts from
    paints: Enzymatic cross-linking of alkyd resins. <i>Green Chemistry</i>. 2013;15(2):381-388.
    doi:<a href="https://doi.org/10.1039/c2gc36666e">10.1039/c2gc36666e</a>'
  apa: 'Greimel, K., Perz, V., Koren, K., Feola, R., Temel, A., Sohar, C., … Guebitz,
    G. (2013). Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking
    of alkyd resins. <i>Green Chemistry</i>. Royal Society of Chemistry. <a href="https://doi.org/10.1039/c2gc36666e">https://doi.org/10.1039/c2gc36666e</a>'
  chicago: 'Greimel, Katrin, Veronika Perz, Klaus Koren, Roland Feola, Armin Temel,
    Christian Sohar, Enrique Herrero Acero, Ingo Klimant, and Georg Guebitz. “Banning
    Toxic Heavy-Metal Catalysts from Paints: Enzymatic Cross-Linking of Alkyd Resins.”
    <i>Green Chemistry</i>. Royal Society of Chemistry, 2013. <a href="https://doi.org/10.1039/c2gc36666e">https://doi.org/10.1039/c2gc36666e</a>.'
  ieee: 'K. Greimel <i>et al.</i>, “Banning toxic heavy-metal catalysts from paints:
    Enzymatic cross-linking of alkyd resins,” <i>Green Chemistry</i>, vol. 15, no.
    2. Royal Society of Chemistry, pp. 381–388, 2013.'
  ista: 'Greimel K, Perz V, Koren K, Feola R, Temel A, Sohar C, Herrero Acero E, Klimant
    I, Guebitz G. 2013. Banning toxic heavy-metal catalysts from paints: Enzymatic
    cross-linking of alkyd resins. Green Chemistry. 15(2), 381–388.'
  mla: 'Greimel, Katrin, et al. “Banning Toxic Heavy-Metal Catalysts from Paints:
    Enzymatic Cross-Linking of Alkyd Resins.” <i>Green Chemistry</i>, vol. 15, no.
    2, Royal Society of Chemistry, 2013, pp. 381–88, doi:<a href="https://doi.org/10.1039/c2gc36666e">10.1039/c2gc36666e</a>.'
  short: K. Greimel, V. Perz, K. Koren, R. Feola, A. Temel, C. Sohar, E. Herrero Acero,
    I. Klimant, G. Guebitz, Green Chemistry 15 (2013) 381–388.
date_created: 2018-12-11T11:46:51Z
date_published: 2013-02-01T00:00:00Z
date_updated: 2021-01-12T08:01:11Z
day: '01'
department:
- _id: HaJa
doi: 10.1039/c2gc36666e
intvolume: '        15'
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: 381 - 388
publication: Green Chemistry
publication_status: published
publisher: Royal Society of Chemistry
publist_id: '7313'
quality_controlled: '1'
scopus_import: 1
status: public
title: 'Banning toxic heavy-metal catalysts from paints: Enzymatic cross-linking of
  alkyd resins'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 15
year: '2013'
...
---
_id: '10896'
abstract:
- lang: eng
  text: Under physiological conditions the brain, via the purine salvage pathway,
    reuses the preformed purine bases hypoxanthine, derived from ATP degradation,
    and adenine (Ade), derived from polyamine synthesis, to restore its ATP pool.
    However, the massive degradation of ATP during ischemia, although providing valuable
    neuroprotective adenosine, results in the accumulation and loss of diffusible
    purine metabolites and thereby leads to a protracted reduction in the post-ischemic
    ATP pool size. In vivo, this may both limit the ability to deploy ATP-dependent
    reparative mechanisms and reduce the subsequent availability of adenosine, whilst
    in brain slices results in tissue with substantially lower levels of ATP than
    in vivo. In the present review, we describe the mechanisms by which brain tissue
    replenishes its ATP, how this can be improved with the clinically tolerated chemicals
    D-ribose and adenine, and the functional, and potential therapeutic, implications
    of doing so.
acknowledgement: We are grateful to Research into Ageing/Ageing UK and The Dunhill
  Trust for funding SzN’s graduate studies, and to Prof Nicholas Dale for his valuable
  input.
article_processing_charge: No
author:
- first_name: Stephanie
  full_name: zur Nedden, Stephanie
  id: 3C77F464-F248-11E8-B48F-1D18A9856A87
  last_name: zur Nedden
- first_name: Alexander S.
  full_name: Doney, Alexander S.
  last_name: Doney
- first_name: Bruno G.
  full_name: Frenguelli, Bruno G.
  last_name: Frenguelli
citation:
  ama: 'zur Nedden S, Doney AS, Frenguelli BG. The double-edged sword: Gaining Adenosine
    at the expense of ATP. How to balance the books. In: Masino S, Boison D, eds.
    <i>Adenosine</i>. 1st ed. New York: Springer; 2012:109-129. doi:<a href="https://doi.org/10.1007/978-1-4614-3903-5_6">10.1007/978-1-4614-3903-5_6</a>'
  apa: 'zur Nedden, S., Doney, A. S., &#38; Frenguelli, B. G. (2012). The double-edged
    sword: Gaining Adenosine at the expense of ATP. How to balance the books. In S.
    Masino &#38; D. Boison (Eds.), <i>Adenosine</i> (1st ed., pp. 109–129). New York:
    Springer. <a href="https://doi.org/10.1007/978-1-4614-3903-5_6">https://doi.org/10.1007/978-1-4614-3903-5_6</a>'
  chicago: 'Nedden, Stephanie zur, Alexander S. Doney, and Bruno G. Frenguelli. “The
    Double-Edged Sword: Gaining Adenosine at the Expense of ATP. How to Balance the
    Books.” In <i>Adenosine</i>, edited by Susan Masino and Detlev Boison, 1st ed.,
    109–29. New York: Springer, 2012. <a href="https://doi.org/10.1007/978-1-4614-3903-5_6">https://doi.org/10.1007/978-1-4614-3903-5_6</a>.'
  ieee: 'S. zur Nedden, A. S. Doney, and B. G. Frenguelli, “The double-edged sword:
    Gaining Adenosine at the expense of ATP. How to balance the books,” in <i>Adenosine</i>,
    1st ed., S. Masino and D. Boison, Eds. New York: Springer, 2012, pp. 109–129.'
  ista: 'zur Nedden S, Doney AS, Frenguelli BG. 2012.The double-edged sword: Gaining
    Adenosine at the expense of ATP. How to balance the books. In: Adenosine. , 109–129.'
  mla: 'zur Nedden, Stephanie, et al. “The Double-Edged Sword: Gaining Adenosine at
    the Expense of ATP. How to Balance the Books.” <i>Adenosine</i>, edited by Susan
    Masino and Detlev Boison, 1st ed., Springer, 2012, pp. 109–29, doi:<a href="https://doi.org/10.1007/978-1-4614-3903-5_6">10.1007/978-1-4614-3903-5_6</a>.'
  short: S. zur Nedden, A.S. Doney, B.G. Frenguelli, in:, S. Masino, D. Boison (Eds.),
    Adenosine, 1st ed., Springer, New York, 2012, pp. 109–129.
date_created: 2022-03-21T07:16:12Z
date_published: 2012-07-23T00:00:00Z
date_updated: 2022-06-21T11:51:58Z
day: '23'
department:
- _id: HaJa
doi: 10.1007/978-1-4614-3903-5_6
edition: '1'
editor:
- first_name: Susan
  full_name: Masino, Susan
  last_name: Masino
- first_name: Detlev
  full_name: Boison, Detlev
  last_name: Boison
language:
- iso: eng
month: '07'
oa_version: None
page: 109-129
place: New York
publication: Adenosine
publication_identifier:
  eisbn:
  - '9781461439035'
  isbn:
  - '9781461439028'
publication_status: published
publisher: Springer
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'The double-edged sword: Gaining Adenosine at the expense of ATP. How to balance
  the books'
type: book_chapter
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2012'
...
---
_id: '3405'
abstract:
- lang: eng
  text: Glutamate is the major excitatory neurotransmitter in the mammalian central
    nervous system and gates non-selective cation channels. The origins of glutamate
    receptors are not well understood as they differ structurally and functionally
    from simple bacterial ligand-gated ion channels. Here we report the discovery
    of an ionotropic glutamate receptor that combines the typical eukaryotic domain
    architecture with the 'TXVGYG' signature sequence of the selectivity filter found
    in K+ channels. This receptor exhibits functional properties intermediate between
    bacterial and eukaryotic glutamate-gated ion channels, suggesting a link in the
    evolution of ionotropic glutamate receptors.
author:
- first_name: Harald L
  full_name: Janovjak, Harald L
  id: 33BA6C30-F248-11E8-B48F-1D18A9856A87
  last_name: Janovjak
  orcid: 0000-0002-8023-9315
- first_name: Guillaume
  full_name: Sandoz, Guillaume
  last_name: Sandoz
- first_name: Ehud
  full_name: Isacoff, Ehud
  last_name: Isacoff
citation:
  ama: Janovjak HL, Sandoz G, Isacoff E. Modern ionotropic glutamate receptor with
    a K+ selectivity signature sequence. <i>Nature Communications</i>. 2011;2(232):1-6.
    doi:<a href="https://doi.org/10.1038/ncomms1231">10.1038/ncomms1231</a>
  apa: Janovjak, H. L., Sandoz, G., &#38; Isacoff, E. (2011). Modern ionotropic glutamate
    receptor with a K+ selectivity signature sequence. <i>Nature Communications</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/ncomms1231">https://doi.org/10.1038/ncomms1231</a>
  chicago: Janovjak, Harald L, Guillaume Sandoz, and Ehud Isacoff. “Modern Ionotropic
    Glutamate Receptor with a K+ Selectivity Signature Sequence.” <i>Nature Communications</i>.
    Nature Publishing Group, 2011. <a href="https://doi.org/10.1038/ncomms1231">https://doi.org/10.1038/ncomms1231</a>.
  ieee: H. L. Janovjak, G. Sandoz, and E. Isacoff, “Modern ionotropic glutamate receptor
    with a K+ selectivity signature sequence,” <i>Nature Communications</i>, vol.
    2, no. 232. Nature Publishing Group, pp. 1–6, 2011.
  ista: Janovjak HL, Sandoz G, Isacoff E. 2011. Modern ionotropic glutamate receptor
    with a K+ selectivity signature sequence. Nature Communications. 2(232), 1–6.
  mla: Janovjak, Harald L., et al. “Modern Ionotropic Glutamate Receptor with a K+
    Selectivity Signature Sequence.” <i>Nature Communications</i>, vol. 2, no. 232,
    Nature Publishing Group, 2011, pp. 1–6, doi:<a href="https://doi.org/10.1038/ncomms1231">10.1038/ncomms1231</a>.
  short: H.L. Janovjak, G. Sandoz, E. Isacoff, Nature Communications 2 (2011) 1–6.
date_created: 2018-12-11T12:03:09Z
date_published: 2011-03-08T00:00:00Z
date_updated: 2021-01-12T07:43:15Z
day: '08'
ddc:
- '570'
- '571'
department:
- _id: HaJa
doi: 10.1038/ncomms1231
file:
- access_level: open_access
  checksum: 6b68d65aadd97c18d663eb117a0a9d35
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:36Z
  date_updated: 2020-07-14T12:46:12Z
  file_id: '4891'
  file_name: IST-2017-832-v1+1_janovjak.pdf
  file_size: 387654
  relation: main_file
file_date_updated: 2020-07-14T12:46:12Z
has_accepted_license: '1'
intvolume: '         2'
issue: '232'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Submitted Version
page: 1 - 6
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
publist_id: '2997'
pubrep_id: '832'
quality_controlled: '1'
scopus_import: 1
status: public
title: Modern ionotropic glutamate receptor with a K+ selectivity signature sequence
type: journal_article
user_id: 4435EBFC-F248-11E8-B48F-1D18A9856A87
volume: 2
year: '2011'
...
