---
_id: '7406'
abstract:
- lang: eng
  text: "Background\r\nSynaptic vesicles (SVs) are an integral part of the neurotransmission
    machinery, and isolation of SVs from their host neuron is necessary to reveal
    their most fundamental biochemical and functional properties in in vitro assays.
    Isolated SVs from neurons that have been genetically engineered, e.g. to introduce
    genetically encoded indicators, are not readily available but would permit new
    insights into SV structure and function. Furthermore, it is unclear if cultured
    neurons can provide sufficient starting material for SV isolation procedures.\r\n\r\nNew
    method\r\nHere, we demonstrate an efficient ex vivo procedure to obtain functional
    SVs from cultured rat cortical neurons after genetic engineering with a lentivirus.\r\n\r\nResults\r\nWe
    show that ∼108 plated cortical neurons allow isolation of suitable SV amounts
    for functional analysis and imaging. We found that SVs isolated from cultured
    neurons have neurotransmitter uptake comparable to that of SVs isolated from intact
    cortex. Using total internal reflection fluorescence (TIRF) microscopy, we visualized
    an exogenous SV-targeted marker protein and demonstrated the high efficiency of
    SV modification.\r\n\r\nComparison with existing methods\r\nObtaining SVs from
    genetically engineered neurons currently generally requires the availability of
    transgenic animals, which is constrained by technical (e.g. cost and time) and
    biological (e.g. developmental defects and lethality) limitations.\r\n\r\nConclusions\r\nThese
    results demonstrate the modification and isolation of functional SVs using cultured
    neurons and viral transduction. The ability to readily obtain SVs from genetically
    engineered neurons will permit linking in situ studies to in vitro experiments
    in a variety of genetic contexts."
acknowledged_ssus:
- _id: Bio
- _id: EM-Fac
article_processing_charge: No
article_type: original
author:
- first_name: Catherine
  full_name: Mckenzie, Catherine
  id: 3EEDE19A-F248-11E8-B48F-1D18A9856A87
  last_name: Mckenzie
- first_name: Miroslava
  full_name: Spanova, Miroslava
  id: 44A924DC-F248-11E8-B48F-1D18A9856A87
  last_name: Spanova
- first_name: Alexander J
  full_name: Johnson, Alexander J
  id: 46A62C3A-F248-11E8-B48F-1D18A9856A87
  last_name: Johnson
  orcid: 0000-0002-2739-8843
- first_name: Stephanie
  full_name: Kainrath, Stephanie
  id: 32CFBA64-F248-11E8-B48F-1D18A9856A87
  last_name: Kainrath
  orcid: 0000-0002-6709-2195
- first_name: Vanessa
  full_name: Zheden, Vanessa
  id: 39C5A68A-F248-11E8-B48F-1D18A9856A87
  last_name: Zheden
  orcid: 0000-0002-9438-4783
- first_name: Harald H.
  full_name: Sitte, Harald H.
  last_name: Sitte
- 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, Spanova M, Johnson AJ, et al. Isolation of synaptic vesicles from
    genetically engineered cultured neurons. <i>Journal of Neuroscience Methods</i>.
    2019;312:114-121. doi:<a href="https://doi.org/10.1016/j.jneumeth.2018.11.018">10.1016/j.jneumeth.2018.11.018</a>
  apa: Mckenzie, C., Spanova, M., Johnson, A. J., Kainrath, S., Zheden, V., Sitte,
    H. H., &#38; Janovjak, H. L. (2019). Isolation of synaptic vesicles from genetically
    engineered cultured neurons. <i>Journal of Neuroscience Methods</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.jneumeth.2018.11.018">https://doi.org/10.1016/j.jneumeth.2018.11.018</a>
  chicago: Mckenzie, Catherine, Miroslava Spanova, Alexander J Johnson, Stephanie
    Kainrath, Vanessa Zheden, Harald H. Sitte, and Harald L Janovjak. “Isolation of
    Synaptic Vesicles from Genetically Engineered Cultured Neurons.” <i>Journal of
    Neuroscience Methods</i>. Elsevier, 2019. <a href="https://doi.org/10.1016/j.jneumeth.2018.11.018">https://doi.org/10.1016/j.jneumeth.2018.11.018</a>.
  ieee: C. Mckenzie <i>et al.</i>, “Isolation of synaptic vesicles from genetically
    engineered cultured neurons,” <i>Journal of Neuroscience Methods</i>, vol. 312.
    Elsevier, pp. 114–121, 2019.
  ista: Mckenzie C, Spanova M, Johnson AJ, Kainrath S, Zheden V, Sitte HH, Janovjak
    HL. 2019. Isolation of synaptic vesicles from genetically engineered cultured
    neurons. Journal of Neuroscience Methods. 312, 114–121.
  mla: Mckenzie, Catherine, et al. “Isolation of Synaptic Vesicles from Genetically
    Engineered Cultured Neurons.” <i>Journal of Neuroscience Methods</i>, vol. 312,
    Elsevier, 2019, pp. 114–21, doi:<a href="https://doi.org/10.1016/j.jneumeth.2018.11.018">10.1016/j.jneumeth.2018.11.018</a>.
  short: C. Mckenzie, M. Spanova, A.J. Johnson, S. Kainrath, V. Zheden, H.H. Sitte,
    H.L. Janovjak, Journal of Neuroscience Methods 312 (2019) 114–121.
date_created: 2020-01-30T09:12:19Z
date_published: 2019-01-15T00:00:00Z
date_updated: 2026-04-14T08:34:33Z
day: '15'
department:
- _id: HaJa
- _id: Bio
doi: 10.1016/j.jneumeth.2018.11.018
ec_funded: 1
external_id:
  isi:
  - '000456220900013'
  pmid:
  - '30496761'
intvolume: '       312'
isi: 1
language:
- iso: eng
month: '01'
oa_version: None
page: 114-121
pmid: 1
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 26538374-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I03630
  name: Molecular mechanisms of endocytic cargo recognition in plants
- _id: 2548AE96-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232
  name: Molecular Drug Targets
publication: Journal of Neuroscience Methods
publication_identifier:
  issn:
  - 0165-0270
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Isolation of synaptic vesicles from genetically engineered cultured neurons
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 312
year: '2019'
...
---
_id: '5984'
abstract:
- lang: eng
  text: G-protein-coupled receptors (GPCRs) form the largest receptor family, relay
    environmental stimuli to changes in cell behavior and represent prime drug targets.
    Many GPCRs are classified as orphan receptors because of the limited knowledge
    on their ligands and coupling to cellular signaling machineries. Here, we engineer
    a library of 63 chimeric receptors that contain the signaling domains of human
    orphan and understudied GPCRs functionally linked to the light-sensing domain
    of rhodopsin. Upon stimulation with visible light, we identify activation of canonical
    cell signaling pathways, including cAMP-, Ca2+-, MAPK/ERK-, and Rho-dependent
    pathways, downstream of the engineered receptors. For the human pseudogene GPR33,
    we resurrect a signaling function that supports its hypothesized role as a pathogen
    entry site. These results demonstrate that substituting unknown chemical activators
    with a light switch can reveal information about protein function and provide
    an optically controlled protein library for exploring the physiology and therapeutic
    potential of understudied GPCRs.
article_number: '1950'
article_processing_charge: No
author:
- first_name: Maurizio
  full_name: Morri, Maurizio
  id: 4863116E-F248-11E8-B48F-1D18A9856A87
  last_name: Morri
- first_name: Inmaculada
  full_name: Sanchez-Romero, Inmaculada
  id: 3D9C5D30-F248-11E8-B48F-1D18A9856A87
  last_name: Sanchez-Romero
- first_name: Alexandra-Madelaine
  full_name: Tichy, Alexandra-Madelaine
  id: 29D8BB2C-F248-11E8-B48F-1D18A9856A87
  last_name: Tichy
- first_name: Stephanie
  full_name: Kainrath, Stephanie
  id: 32CFBA64-F248-11E8-B48F-1D18A9856A87
  last_name: Kainrath
- first_name: Elliot J.
  full_name: Gerrard, Elliot J.
  last_name: Gerrard
- first_name: Priscila
  full_name: Hirschfeld, Priscila
  id: 435ACB3A-F248-11E8-B48F-1D18A9856A87
  last_name: Hirschfeld
- first_name: Jan
  full_name: Schwarz, Jan
  id: 346C1EC6-F248-11E8-B48F-1D18A9856A87
  last_name: Schwarz
- 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: Morri M, Sanchez-Romero I, Tichy A-M, et al. Optical functionalization of human
    class A orphan G-protein-coupled receptors. <i>Nature Communications</i>. 2018;9(1).
    doi:<a href="https://doi.org/10.1038/s41467-018-04342-1">10.1038/s41467-018-04342-1</a>
  apa: Morri, M., Sanchez-Romero, I., Tichy, A.-M., Kainrath, S., Gerrard, E. J.,
    Hirschfeld, P., … Janovjak, H. L. (2018). Optical functionalization of human class
    A orphan G-protein-coupled receptors. <i>Nature Communications</i>. Springer Nature.
    <a href="https://doi.org/10.1038/s41467-018-04342-1">https://doi.org/10.1038/s41467-018-04342-1</a>
  chicago: Morri, Maurizio, Inmaculada Sanchez-Romero, Alexandra-Madelaine Tichy,
    Stephanie Kainrath, Elliot J. Gerrard, Priscila Hirschfeld, Jan Schwarz, and Harald
    L Janovjak. “Optical Functionalization of Human Class A Orphan G-Protein-Coupled
    Receptors.” <i>Nature Communications</i>. Springer Nature, 2018. <a href="https://doi.org/10.1038/s41467-018-04342-1">https://doi.org/10.1038/s41467-018-04342-1</a>.
  ieee: M. Morri <i>et al.</i>, “Optical functionalization of human class A orphan
    G-protein-coupled receptors,” <i>Nature Communications</i>, vol. 9, no. 1. Springer
    Nature, 2018.
  ista: Morri M, Sanchez-Romero I, Tichy A-M, Kainrath S, Gerrard EJ, Hirschfeld P,
    Schwarz J, Janovjak HL. 2018. Optical functionalization of human class A orphan
    G-protein-coupled receptors. Nature Communications. 9(1), 1950.
  mla: Morri, Maurizio, et al. “Optical Functionalization of Human Class A Orphan
    G-Protein-Coupled Receptors.” <i>Nature Communications</i>, vol. 9, no. 1, 1950,
    Springer Nature, 2018, doi:<a href="https://doi.org/10.1038/s41467-018-04342-1">10.1038/s41467-018-04342-1</a>.
  short: M. Morri, I. Sanchez-Romero, A.-M. Tichy, S. Kainrath, E.J. Gerrard, P. Hirschfeld,
    J. Schwarz, H.L. Janovjak, Nature Communications 9 (2018).
date_created: 2019-02-14T10:50:24Z
date_published: 2018-12-01T00:00:00Z
date_updated: 2025-04-15T07:22:42Z
day: '01'
ddc:
- '570'
department:
- _id: HaJa
- _id: CaGu
- _id: MiSi
doi: 10.1038/s41467-018-04342-1
ec_funded: 1
external_id:
  isi:
  - '000432280000006'
file:
- access_level: open_access
  checksum: 8325fcc194264af4749e662a73bf66b5
  content_type: application/pdf
  creator: kschuh
  date_created: 2019-02-14T10:58:29Z
  date_updated: 2020-07-14T12:47:14Z
  file_id: '5985'
  file_name: 2018_Springer_Morri.pdf
  file_size: 1349914
  relation: main_file
file_date_updated: 2020-07-14T12:47:14Z
has_accepted_license: '1'
intvolume: '         9'
isi: 1
issue: '1'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '12'
oa: 1
oa_version: Published Version
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255A6082-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Nature Communications
publication_identifier:
  issn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
scopus_import: '1'
status: public
title: Optical functionalization of human class A orphan G-protein-coupled receptors
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: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 9
year: '2018'
...
---
_id: '538'
abstract:
- lang: ger
  text: 'Optogenetik und Photopharmakologie ermöglichen präzise räumliche und zeitliche
    Kontrolle von Proteinwechselwirkung und -funktion in Zellen und Tieren. Optogenetische
    Methoden, die auf grünes Licht ansprechen und zum Trennen von Proteinkomplexen
    geeignet sind, sind nichtweitläufig verfügbar, würden jedoch mehrfarbige Experimente
    zur Beantwortung von biologischen Fragestellungen ermöglichen. Hier demonstrieren
    wir die Verwendung von Cobalamin(Vitamin B12)-bindenden Domänen von bakteriellen
    CarH-Transkriptionsfaktoren zur Grünlicht-induzierten Dissoziation von Rezeptoren.
    Fusioniert mit dem Fibroblasten-W achstumsfaktor-Rezeptor 1 führten diese im Dunkeln
    in kultivierten Zellen zu Signalaktivität durch Oligomerisierung, welche durch
    Beleuchten umgehend aufgehoben wurde. In Zebrafischembryonen, die einen derartigen
    Rezeptor exprimieren, ermöglichte grünes Licht die Kontrolle über abnormale Signalaktivität
    während der Embryonalentwicklung. '
author:
- first_name: Stephanie
  full_name: Kainrath, Stephanie
  id: 32CFBA64-F248-11E8-B48F-1D18A9856A87
  last_name: Kainrath
- first_name: Manuela
  full_name: Stadler, Manuela
  last_name: Stadler
- 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: Martin
  full_name: Distel, Martin
  last_name: Distel
- 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: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. Grünlicht-induzierte
    Rezeptorinaktivierung durch Cobalamin-bindende Domänen. <i>Angewandte Chemie</i>.
    2017;129(16):4679-4682. doi:<a href="https://doi.org/10.1002/ange.201611998">10.1002/ange.201611998</a>
  apa: Kainrath, S., Stadler, M., Gschaider-Reichhart, E., Distel, M., &#38; Janovjak,
    H. L. (2017). Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende
    Domänen. <i>Angewandte Chemie</i>. Wiley. <a href="https://doi.org/10.1002/ange.201611998">https://doi.org/10.1002/ange.201611998</a>
  chicago: Kainrath, Stephanie, Manuela Stadler, Eva Gschaider-Reichhart, Martin Distel,
    and Harald L Janovjak. “Grünlicht-Induzierte Rezeptorinaktivierung Durch Cobalamin-Bindende
    Domänen.” <i>Angewandte Chemie</i>. Wiley, 2017. <a href="https://doi.org/10.1002/ange.201611998">https://doi.org/10.1002/ange.201611998</a>.
  ieee: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, and H. L. Janovjak,
    “Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen,”
    <i>Angewandte Chemie</i>, vol. 129, no. 16. Wiley, pp. 4679–4682, 2017.
  ista: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. 2017.
    Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen. Angewandte
    Chemie. 129(16), 4679–4682.
  mla: Kainrath, Stephanie, et al. “Grünlicht-Induzierte Rezeptorinaktivierung Durch
    Cobalamin-Bindende Domänen.” <i>Angewandte Chemie</i>, vol. 129, no. 16, Wiley,
    2017, pp. 4679–82, doi:<a href="https://doi.org/10.1002/ange.201611998">10.1002/ange.201611998</a>.
  short: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, H.L. Janovjak,
    Angewandte Chemie 129 (2017) 4679–4682.
corr_author: '1'
date_created: 2018-12-11T11:47:02Z
date_published: 2017-05-20T00:00:00Z
date_updated: 2024-10-09T20:58:07Z
day: '20'
ddc:
- '571'
department:
- _id: CaGu
- _id: HaJa
doi: 10.1002/ange.201611998
ec_funded: 1
file:
- access_level: open_access
  checksum: d66fee867e7cdbfa3fe276c2fb0778bb
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:13:24Z
  date_updated: 2020-07-14T12:46:39Z
  file_id: '5007'
  file_name: IST-2018-932-v1+1_Kainrath_et_al-2017-Angewandte_Chemie.pdf
  file_size: 1668557
  relation: main_file
file_date_updated: 2020-07-14T12:46:39Z
has_accepted_license: '1'
intvolume: '       129'
issue: '16'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: 4679 - 4682
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255A6082-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Angewandte Chemie
publication_status: published
publisher: Wiley
publist_id: '7279'
pubrep_id: '932'
quality_controlled: '1'
status: public
title: Grünlicht-induzierte Rezeptorinaktivierung durch Cobalamin-bindende Domänen
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: 129
year: '2017'
...
---
_id: '1026'
abstract:
- lang: eng
  text: The optogenetic revolution enabled spatially-precise and temporally-precise
    control over protein function, signaling pathway activation, and animal behavior
    with tremendous success in the dissection of signaling networks and neural circuits.
    Very recently, optogenetic methods have been paired with optical reporters in
    novel drug screening platforms. In these all-optical platforms, light remotely
    activated ion channels and kinases thereby obviating the use of electrophysiology
    or reagents. Consequences were remarkable operational simplicity, throughput,
    and cost-effectiveness that culminated in the identification of new drug candidates.
    These blueprints for all-optical assays also revealed potential pitfalls and inspire
    all-optical variants of other screens, such as those that aim at better understanding
    dynamic drug action or orphan protein function.
acknowledgement: This work was supported by grants of the European Union Seventh Framework
  Programme (CIG-303564), the Human Frontier Science Program (RGY0084_2012), and the
  Austrian Science Fund FWF (W1232 MolecularDrugTargets).
article_processing_charge: No
article_type: original
author:
- first_name: Viviana
  full_name: Agus, Viviana
  last_name: Agus
- 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: 'Agus V, Janovjak HL. Optogenetic methods in drug screening: Technologies and
    applications. <i>Current Opinion in Biotechnology</i>. 2017;48:8-14. doi:<a href="https://doi.org/10.1016/j.copbio.2017.02.006">10.1016/j.copbio.2017.02.006</a>'
  apa: 'Agus, V., &#38; Janovjak, H. L. (2017). Optogenetic methods in drug screening:
    Technologies and applications. <i>Current Opinion in Biotechnology</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.copbio.2017.02.006">https://doi.org/10.1016/j.copbio.2017.02.006</a>'
  chicago: 'Agus, Viviana, and Harald L Janovjak. “Optogenetic Methods in Drug Screening:
    Technologies and Applications.” <i>Current Opinion in Biotechnology</i>. Elsevier,
    2017. <a href="https://doi.org/10.1016/j.copbio.2017.02.006">https://doi.org/10.1016/j.copbio.2017.02.006</a>.'
  ieee: 'V. Agus and H. L. Janovjak, “Optogenetic methods in drug screening: Technologies
    and applications,” <i>Current Opinion in Biotechnology</i>, vol. 48. Elsevier,
    pp. 8–14, 2017.'
  ista: 'Agus V, Janovjak HL. 2017. Optogenetic methods in drug screening: Technologies
    and applications. Current Opinion in Biotechnology. 48, 8–14.'
  mla: 'Agus, Viviana, and Harald L. Janovjak. “Optogenetic Methods in Drug Screening:
    Technologies and Applications.” <i>Current Opinion in Biotechnology</i>, vol.
    48, Elsevier, 2017, pp. 8–14, doi:<a href="https://doi.org/10.1016/j.copbio.2017.02.006">10.1016/j.copbio.2017.02.006</a>.'
  short: V. Agus, H.L. Janovjak, Current Opinion in Biotechnology 48 (2017) 8–14.
corr_author: '1'
date_created: 2018-12-11T11:49:45Z
date_published: 2017-12-01T00:00:00Z
date_updated: 2026-04-16T09:57:03Z
day: '01'
department:
- _id: HaJa
doi: 10.1016/j.copbio.2017.02.006
ec_funded: 1
external_id:
  isi:
  - '000418313200003'
intvolume: '        48'
isi: 1
language:
- iso: eng
month: '12'
oa_version: None
page: 8 - 14
project:
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
  grant_number: RGY0084/2012
  name: In situ real-time imaging of neurotransmitter signaling using designer optical
    sensors
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255A6082-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Current Opinion in Biotechnology
publication_identifier:
  issn:
  - 0958-1669
publication_status: published
publisher: Elsevier
publist_id: '6365'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Optogenetic methods in drug screening: Technologies and applications'
type: journal_article
user_id: ba8df636-2132-11f1-aed0-ed93e2281fdd
volume: 48
year: '2017'
...
---
_id: '1028'
abstract:
- lang: eng
  text: Optogenetics and photopharmacology provide spatiotemporally precise control
    over protein interactions and protein function in cells and animals. Optogenetic
    methods that are sensitive to green light and can be used to break protein complexes
    are not broadly available but would enable multichromatic experiments with previously
    inaccessible biological targets. Herein, we repurposed cobalamin (vitamin B12)
    binding domains of bacterial CarH transcription factors for green-light-induced
    receptor dissociation. In cultured cells, we observed oligomerization-induced
    cell signaling for the fibroblast growth factor receptor 1 fused to cobalamin-binding
    domains in the dark that was rapidly eliminated upon illumination. In zebrafish
    embryos expressing fusion receptors, green light endowed control over aberrant
    fibroblast growth factor signaling during development. Green-light-induced domain
    dissociation and light-inactivated receptors will critically expand the optogenetic
    toolbox for control of biological processes.
acknowledgement: "This work was supported by a grant from the European Union\U0010FC1Ds
  Seventh Framework Programme (CIG-303564). E.R. was supported by the graduate program
  MolecularDrugTargets (Austrian Science Fund (FWF), W1232) and a FemTech fellowship
  (Austrian Research Promotion Agency, 3580812)"
article_processing_charge: No
author:
- first_name: Stephanie
  full_name: Kainrath, Stephanie
  id: 32CFBA64-F248-11E8-B48F-1D18A9856A87
  last_name: Kainrath
  orcid: 0000-0002-6709-2195
- first_name: Manuela
  full_name: Stadler, Manuela
  last_name: Stadler
- 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: Martin
  full_name: Distel, Martin
  last_name: Distel
- 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: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. Green-light-induced
    inactivation of receptor signaling using cobalamin-binding domains. <i>Angewandte
    Chemie - International Edition</i>. 2017;56(16):4608-4611. doi:<a href="https://doi.org/10.1002/anie.201611998">10.1002/anie.201611998</a>
  apa: Kainrath, S., Stadler, M., Gschaider-Reichhart, E., Distel, M., &#38; Janovjak,
    H. L. (2017). Green-light-induced inactivation of receptor signaling using cobalamin-binding
    domains. <i>Angewandte Chemie - International Edition</i>. Wiley-Blackwell. <a
    href="https://doi.org/10.1002/anie.201611998">https://doi.org/10.1002/anie.201611998</a>
  chicago: Kainrath, Stephanie, Manuela Stadler, Eva Gschaider-Reichhart, Martin Distel,
    and Harald L Janovjak. “Green-Light-Induced Inactivation of Receptor Signaling
    Using Cobalamin-Binding Domains.” <i>Angewandte Chemie - International Edition</i>.
    Wiley-Blackwell, 2017. <a href="https://doi.org/10.1002/anie.201611998">https://doi.org/10.1002/anie.201611998</a>.
  ieee: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, and H. L. Janovjak,
    “Green-light-induced inactivation of receptor signaling using cobalamin-binding
    domains,” <i>Angewandte Chemie - International Edition</i>, vol. 56, no. 16. Wiley-Blackwell,
    pp. 4608–4611, 2017.
  ista: Kainrath S, Stadler M, Gschaider-Reichhart E, Distel M, Janovjak HL. 2017.
    Green-light-induced inactivation of receptor signaling using cobalamin-binding
    domains. Angewandte Chemie - International Edition. 56(16), 4608–4611.
  mla: Kainrath, Stephanie, et al. “Green-Light-Induced Inactivation of Receptor Signaling
    Using Cobalamin-Binding Domains.” <i>Angewandte Chemie - International Edition</i>,
    vol. 56, no. 16, Wiley-Blackwell, 2017, pp. 4608–11, doi:<a href="https://doi.org/10.1002/anie.201611998">10.1002/anie.201611998</a>.
  short: S. Kainrath, M. Stadler, E. Gschaider-Reichhart, M. Distel, H.L. Janovjak,
    Angewandte Chemie - International Edition 56 (2017) 4608–4611.
corr_author: '1'
date_created: 2018-12-11T11:49:46Z
date_published: 2017-03-20T00:00:00Z
date_updated: 2026-04-28T22:30:09Z
day: '20'
ddc:
- '540'
department:
- _id: CaGu
- _id: HaJa
doi: 10.1002/anie.201611998
ec_funded: 1
external_id:
  isi:
  - '000398154000038'
file:
- access_level: open_access
  content_type: application/pdf
  creator: dernst
  date_created: 2019-01-18T09:39:55Z
  date_updated: 2019-01-18T09:39:55Z
  file_id: '5845'
  file_name: 2017_communications_Kainrath.pdf
  file_size: 2614942
  relation: main_file
  success: 1
file_date_updated: 2019-01-18T09:39:55Z
has_accepted_license: '1'
intvolume: '        56'
isi: 1
issue: '16'
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
page: 4608-4611
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 26AA4EF2-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Angewandte Chemie - International Edition
publication_identifier:
  issn:
  - 1433-7851
publication_status: published
publisher: Wiley-Blackwell
publist_id: '6362'
quality_controlled: '1'
related_material:
  record:
  - id: '418'
    relation: dissertation_contains
    status: public
  - id: '7680'
    relation: part_of_dissertation
    status: public
scopus_import: '1'
status: public
title: Green-light-induced inactivation of receptor signaling using cobalamin-binding
  domains
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: 56
year: '2017'
...
---
_id: '1440'
acknowledgement: The author thanks Banerjee et al. (2016) for providing coordinates
  prior to public release and apologizes to colleagues whose work was not cited or
  discussed due to the limited space available. The author is supported by grants
  from EU FP7 (CIG-303564), HFSP (RGY0084_2012), and FWF (W1232).
article_processing_charge: No
author:
- 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: 'Janovjak HL. Light at the end of the protein: Crystal structure of a C-terminal
    light-sensing domain. <i>Structure</i>. 2016;24(2):213-215. doi:<a href="https://doi.org/10.1016/j.str.2016.01.002">10.1016/j.str.2016.01.002</a>'
  apa: 'Janovjak, H. L. (2016). Light at the end of the protein: Crystal structure
    of a C-terminal light-sensing domain. <i>Structure</i>. Cell Press. <a href="https://doi.org/10.1016/j.str.2016.01.002">https://doi.org/10.1016/j.str.2016.01.002</a>'
  chicago: 'Janovjak, Harald L. “Light at the End of the Protein: Crystal Structure
    of a C-Terminal Light-Sensing Domain.” <i>Structure</i>. Cell Press, 2016. <a
    href="https://doi.org/10.1016/j.str.2016.01.002">https://doi.org/10.1016/j.str.2016.01.002</a>.'
  ieee: 'H. L. Janovjak, “Light at the end of the protein: Crystal structure of a
    C-terminal light-sensing domain,” <i>Structure</i>, vol. 24, no. 2. Cell Press,
    pp. 213–215, 2016.'
  ista: 'Janovjak HL. 2016. Light at the end of the protein: Crystal structure of
    a C-terminal light-sensing domain. Structure. 24(2), 213–215.'
  mla: 'Janovjak, Harald L. “Light at the End of the Protein: Crystal Structure of
    a C-Terminal Light-Sensing Domain.” <i>Structure</i>, vol. 24, no. 2, Cell Press,
    2016, pp. 213–15, doi:<a href="https://doi.org/10.1016/j.str.2016.01.002">10.1016/j.str.2016.01.002</a>.'
  short: H.L. Janovjak, Structure 24 (2016) 213–215.
corr_author: '1'
date_created: 2018-12-11T11:52:02Z
date_published: 2016-02-02T00:00:00Z
date_updated: 2025-09-18T11:43:50Z
day: '02'
department:
- _id: HaJa
doi: 10.1016/j.str.2016.01.002
ec_funded: 1
external_id:
  isi:
  - '000373567700001'
intvolume: '        24'
isi: 1
issue: '2'
language:
- iso: eng
month: '02'
oa_version: None
page: 213 - 215
project:
- _id: 255BFFFA-B435-11E9-9278-68D0E5697425
  grant_number: RGY0084/2012
  name: In situ real-time imaging of neurotransmitter signaling using designer optical
    sensors
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255A6082-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Structure
publication_status: published
publisher: Cell Press
publist_id: '5756'
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Light at the end of the protein: Crystal structure of a C-terminal light-sensing
  domain'
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 24
year: '2016'
...
---
_id: '1441'
abstract:
- lang: eng
  text: 'Optogenetics and photopharmacology enable the spatio-temporal control of
    cell and animal behavior by light. Although red light offers deep-tissue penetration
    and minimal phototoxicity, very few red-light-sensitive optogenetic methods are
    currently available. We have now developed a red-light-induced homodimerization
    domain. We first showed that an optimized sensory domain of the cyanobacterial
    phytochrome 1 can be expressed robustly and without cytotoxicity in human cells.
    We then applied this domain to induce the dimerization of two receptor tyrosine
    kinases—the fibroblast growth factor receptor 1 and the neurotrophin receptor
    trkB. This new optogenetic method was then used to activate the MAPK/ERK pathway
    non-invasively in mammalian tissue and in multicolor cell-signaling experiments.
    The light-controlled dimerizer and red-light-activated receptor tyrosine kinases
    will prove useful to regulate a variety of cellular processes with light. Go deep
    with red: The sensory domain (S) of the cyanobacterial phytochrome 1 (CPH1) was
    repurposed to induce the homodimerization of proteins in living cells by red light.
    By using this domain, light-activated protein kinases were engineered that can
    be activated orthogonally from many fluorescent proteins and through mammalian
    tissue. Pr/Pfr=red-/far-red-absorbing state of CPH1.'
acknowledgement: 'A.I.-P. was supported by a Ramon Areces fellowship, and E.R. by
  the graduate program MolecularDrugTargets (Austrian Science Fund (FWF): W1232) and
  a FemTech fellowship (Austrian Research Promotion Agency: 3580812).'
article_processing_charge: No
author:
- 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: Álvaro
  full_name: Inglés Prieto, Álvaro
  id: 2A9DB292-F248-11E8-B48F-1D18A9856A87
  last_name: Inglés Prieto
  orcid: 0000-0002-5409-8571
- first_name: Alexandra-Madelaine
  full_name: Tichy, Alexandra-Madelaine
  id: 29D8BB2C-F248-11E8-B48F-1D18A9856A87
  last_name: Tichy
- 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: Gschaider-Reichhart E, Inglés Prieto Á, Tichy A-M, Mckenzie C, Janovjak HL.
    A phytochrome sensory domain permits receptor activation by red light. <i>Angewandte
    Chemie - International Edition</i>. 2016;55(21):6339-6342. doi:<a href="https://doi.org/10.1002/anie.201601736">10.1002/anie.201601736</a>
  apa: Gschaider-Reichhart, E., Inglés Prieto, Á., Tichy, A.-M., Mckenzie, C., &#38;
    Janovjak, H. L. (2016). A phytochrome sensory domain permits receptor activation
    by red light. <i>Angewandte Chemie - International Edition</i>. Wiley. <a href="https://doi.org/10.1002/anie.201601736">https://doi.org/10.1002/anie.201601736</a>
  chicago: Gschaider-Reichhart, Eva, Álvaro Inglés Prieto, Alexandra-Madelaine Tichy,
    Catherine Mckenzie, and Harald L Janovjak. “A Phytochrome Sensory Domain Permits
    Receptor Activation by Red Light.” <i>Angewandte Chemie - International Edition</i>.
    Wiley, 2016. <a href="https://doi.org/10.1002/anie.201601736">https://doi.org/10.1002/anie.201601736</a>.
  ieee: E. Gschaider-Reichhart, Á. Inglés Prieto, A.-M. Tichy, C. Mckenzie, and H.
    L. Janovjak, “A phytochrome sensory domain permits receptor activation by red
    light,” <i>Angewandte Chemie - International Edition</i>, vol. 55, no. 21. Wiley,
    pp. 6339–6342, 2016.
  ista: Gschaider-Reichhart E, Inglés Prieto Á, Tichy A-M, Mckenzie C, Janovjak HL.
    2016. A phytochrome sensory domain permits receptor activation by red light. Angewandte
    Chemie - International Edition. 55(21), 6339–6342.
  mla: Gschaider-Reichhart, Eva, et al. “A Phytochrome Sensory Domain Permits Receptor
    Activation by Red Light.” <i>Angewandte Chemie - International Edition</i>, vol.
    55, no. 21, Wiley, 2016, pp. 6339–42, doi:<a href="https://doi.org/10.1002/anie.201601736">10.1002/anie.201601736</a>.
  short: E. Gschaider-Reichhart, Á. Inglés Prieto, A.-M. Tichy, C. Mckenzie, H.L.
    Janovjak, Angewandte Chemie - International Edition 55 (2016) 6339–6342.
corr_author: '1'
date_created: 2018-12-11T11:52:02Z
date_published: 2016-05-17T00:00:00Z
date_updated: 2026-04-08T14:11:53Z
day: '17'
ddc:
- '571'
- '576'
department:
- _id: HaJa
doi: 10.1002/anie.201601736
ec_funded: 1
external_id:
  isi:
  - '000377918400039'
file:
- access_level: open_access
  checksum: 26da07960e57ac4750b54179197ce57f
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:17:03Z
  date_updated: 2020-07-14T12:44:55Z
  file_id: '5255'
  file_name: IST-2017-840-v1+1_reichhart.pdf
  file_size: 1268662
  relation: main_file
file_date_updated: 2020-07-14T12:44:55Z
has_accepted_license: '1'
intvolume: '        55'
isi: 1
issue: '21'
language:
- iso: eng
month: '05'
oa: 1
oa_version: Submitted Version
page: 6339 - 6342
project:
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
- _id: 255A6082-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Angewandte Chemie - International Edition
publication_status: published
publisher: Wiley
publist_id: '5755'
pubrep_id: '840'
quality_controlled: '1'
related_material:
  record:
  - id: '418'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: A phytochrome sensory domain permits receptor activation by red light
type: journal_article
user_id: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 55
year: '2016'
...
---
_id: '1100'
abstract:
- lang: eng
  text: During metazoan development, the temporal pattern of morphogen signaling is
    critical for organizing cell fates in space and time. Yet, tools for temporally
    controlling morphogen signaling within the embryo are still scarce. Here, we developed
    a photoactivatable Nodal receptor to determine how the temporal pattern of Nodal
    signaling affects cell fate specification during zebrafish gastrulation. By using
    this receptor to manipulate the duration of Nodal signaling in vivo by light,
    we show that extended Nodal signaling within the organizer promotes prechordal
    plate specification and suppresses endoderm differentiation. Endoderm differentiation
    is suppressed by extended Nodal signaling inducing expression of the transcriptional
    repressor goosecoid (gsc) in prechordal plate progenitors, which in turn restrains
    Nodal signaling from upregulating the endoderm differentiation gene sox17 within
    these cells. Thus, optogenetic manipulation of Nodal signaling identifies a critical
    role of Nodal signaling duration for organizer cell fate specification during
    gastrulation.
acknowledged_ssus:
- _id: SSU
acknowledgement: 'We are grateful to members of the C.-P.H. and H.J. labs for discussions,
  R. Hauschild and the different Scientific Service Units at IST Austria for technical
  help, M. Dravecka for performing initial experiments, A. Schier for reading an earlier
  version of the manuscript, K.W. Rogers for technical help, and C. Hill, A. Bruce,
  and L. Solnica-Krezel for sending plasmids. This work was supported by grants from
  the Austrian Science Foundation (FWF): (T560-B17) and (I 812-B12) to V.R. and C.-P.H.,
  and from the European Union (EU FP7): (6275) to H.J. A.I.-P. is supported by a Ramon
  Areces fellowship.'
article_processing_charge: No
author:
- first_name: Keisuke
  full_name: Sako, Keisuke
  id: 3BED66BE-F248-11E8-B48F-1D18A9856A87
  last_name: Sako
  orcid: 0000-0002-6453-8075
- first_name: Saurabh
  full_name: Pradhan, Saurabh
  last_name: Pradhan
- first_name: Vanessa
  full_name: Barone, Vanessa
  id: 419EECCC-F248-11E8-B48F-1D18A9856A87
  last_name: Barone
  orcid: 0000-0003-2676-3367
- 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: Patrick
  full_name: Mueller, Patrick
  last_name: Mueller
- first_name: Verena
  full_name: Ruprecht, Verena
  id: 4D71A03A-F248-11E8-B48F-1D18A9856A87
  last_name: Ruprecht
  orcid: 0000-0003-4088-8633
- first_name: Daniel
  full_name: Capek, Daniel
  id: 31C42484-F248-11E8-B48F-1D18A9856A87
  last_name: Capek
  orcid: 0000-0001-5199-9940
- first_name: Sanjeev
  full_name: Galande, Sanjeev
  last_name: Galande
- 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: Carl-Philipp J
  full_name: Heisenberg, Carl-Philipp J
  id: 39427864-F248-11E8-B48F-1D18A9856A87
  last_name: Heisenberg
  orcid: 0000-0002-0912-4566
citation:
  ama: Sako K, Pradhan S, Barone V, et al. Optogenetic control of nodal signaling
    reveals a temporal pattern of nodal signaling regulating cell fate specification
    during gastrulation. <i>Cell Reports</i>. 2016;16(3):866-877. doi:<a href="https://doi.org/10.1016/j.celrep.2016.06.036">10.1016/j.celrep.2016.06.036</a>
  apa: Sako, K., Pradhan, S., Barone, V., Inglés Prieto, Á., Mueller, P., Ruprecht,
    V., … Heisenberg, C.-P. J. (2016). Optogenetic control of nodal signaling reveals
    a temporal pattern of nodal signaling regulating cell fate specification during
    gastrulation. <i>Cell Reports</i>. Cell Press. <a href="https://doi.org/10.1016/j.celrep.2016.06.036">https://doi.org/10.1016/j.celrep.2016.06.036</a>
  chicago: Sako, Keisuke, Saurabh Pradhan, Vanessa Barone, Álvaro Inglés Prieto, Patrick
    Mueller, Verena Ruprecht, Daniel Capek, Sanjeev Galande, Harald L Janovjak, and
    Carl-Philipp J Heisenberg. “Optogenetic Control of Nodal Signaling Reveals a Temporal
    Pattern of Nodal Signaling Regulating Cell Fate Specification during Gastrulation.”
    <i>Cell Reports</i>. Cell Press, 2016. <a href="https://doi.org/10.1016/j.celrep.2016.06.036">https://doi.org/10.1016/j.celrep.2016.06.036</a>.
  ieee: K. Sako <i>et al.</i>, “Optogenetic control of nodal signaling reveals a temporal
    pattern of nodal signaling regulating cell fate specification during gastrulation,”
    <i>Cell Reports</i>, vol. 16, no. 3. Cell Press, pp. 866–877, 2016.
  ista: Sako K, Pradhan S, Barone V, Inglés Prieto Á, Mueller P, Ruprecht V, Capek
    D, Galande S, Janovjak HL, Heisenberg C-PJ. 2016. Optogenetic control of nodal
    signaling reveals a temporal pattern of nodal signaling regulating cell fate specification
    during gastrulation. Cell Reports. 16(3), 866–877.
  mla: Sako, Keisuke, et al. “Optogenetic Control of Nodal Signaling Reveals a Temporal
    Pattern of Nodal Signaling Regulating Cell Fate Specification during Gastrulation.”
    <i>Cell Reports</i>, vol. 16, no. 3, Cell Press, 2016, pp. 866–77, doi:<a href="https://doi.org/10.1016/j.celrep.2016.06.036">10.1016/j.celrep.2016.06.036</a>.
  short: K. Sako, S. Pradhan, V. Barone, Á. Inglés Prieto, P. Mueller, V. Ruprecht,
    D. Capek, S. Galande, H.L. Janovjak, C.-P.J. Heisenberg, Cell Reports 16 (2016)
    866–877.
date_created: 2018-12-11T11:50:08Z
date_published: 2016-07-19T00:00:00Z
date_updated: 2026-04-28T22:31:01Z
day: '19'
ddc:
- '570'
- '576'
department:
- _id: CaHe
- _id: HaJa
doi: 10.1016/j.celrep.2016.06.036
ec_funded: 1
external_id:
  isi:
  - '000380264200024'
file:
- access_level: open_access
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:11:04Z
  date_updated: 2018-12-12T10:11:04Z
  file_id: '4857'
  file_name: IST-2017-754-v1+1_1-s2.0-S2211124716307768-main.pdf
  file_size: 3921947
  relation: main_file
file_date_updated: 2018-12-12T10:11:04Z
has_accepted_license: '1'
intvolume: '        16'
isi: 1
issue: '3'
language:
- iso: eng
month: '07'
oa: 1
oa_version: Published Version
page: 866 - 877
project:
- _id: 2529486C-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: T 560-B17
  name: Cell- and Tissue Mechanics in Zebrafish Germ Layer Formation
- _id: 2527D5CC-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: I812-B12
  name: Cell Cortex and Germ Layer Formation in Zebrafish Gastrulation
- _id: 25548C20-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '303564'
  name: Microbial Ion Channels for Synthetic Neurobiology
publication: Cell Reports
publication_status: published
publisher: Cell Press
publist_id: '6275'
pubrep_id: '754'
quality_controlled: '1'
related_material:
  record:
  - id: '961'
    relation: dissertation_contains
    status: public
  - id: '50'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Optogenetic control of nodal signaling reveals a temporal pattern of nodal
  signaling regulating cell fate specification during gastrulation
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 16
year: '2016'
...
---
_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.
article_processing_charge: No
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.
corr_author: '1'
date_created: 2018-12-11T11:54:26Z
date_published: 2015-02-01T00:00:00Z
date_updated: 2025-09-23T09:57:13Z
day: '01'
department:
- _id: HaJa
doi: 10.1002/elps.201400451
ec_funded: 1
external_id:
  isi:
  - '000349969700005'
  pmid:
  - '25488801 '
intvolume: '        36'
isi: 1
issue: '4'
language:
- iso: eng
month: '02'
oa_version: None
page: 518 - 525
pmid: 1
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
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: 317138e5-6ab7-11ef-aa6d-ffef3953e345
volume: 36
year: '2015'
...
---
_id: '1678'
abstract:
- lang: eng
  text: High-throughput live-cell screens are intricate elements of systems biology
    studies and drug discovery pipelines. Here, we demonstrate an optogenetics-assisted
    method that avoids the need for chemical activators and reporters, reduces the
    number of operational steps and increases information content in a cell-based
    small-molecule screen against human protein kinases, including an orphan receptor
    tyrosine kinase. This blueprint for all-optical screening can be adapted to many
    drug targets and cellular processes.
acknowledgement: 'This work was supported by grants from the European Union Seventh
  Framework Programme (CIG-303564 to H.J. and ERC-StG-311166 to S.M.B.N.), the Human
  Frontier Science Program (RGY0084_2012 to H.J.) and the Herzfelder Foundation (to
  M.G.). A.I.-P. was supported by a Ramon Areces fellowship, and E.R. by the graduate
  program MolecularDrugTargets (Austrian Science Fund (FWF): W 1232) and a FemTech
  fellowship (3580812 Austrian Research Promotion Agency).'
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: Markus
  full_name: Muellner, Markus
  last_name: Muellner
- first_name: Matthias
  full_name: Nowak, Matthias
  id: 30845DAA-F248-11E8-B48F-1D18A9856A87
  last_name: Nowak
- first_name: Sebastian
  full_name: Nijman, Sebastian
  last_name: Nijman
- first_name: Michael
  full_name: Grusch, Michael
  last_name: Grusch
- 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: Inglés Prieto Á, Gschaider-Reichhart E, Muellner M, et al. Light-assisted small-molecule
    screening against protein kinases. <i>Nature Chemical Biology</i>. 2015;11(12):952-954.
    doi:<a href="https://doi.org/10.1038/nchembio.1933">10.1038/nchembio.1933</a>
  apa: Inglés Prieto, Á., Gschaider-Reichhart, E., Muellner, M., Nowak, M., Nijman,
    S., Grusch, M., &#38; Janovjak, H. L. (2015). Light-assisted small-molecule screening
    against protein kinases. <i>Nature Chemical Biology</i>. Nature Publishing Group.
    <a href="https://doi.org/10.1038/nchembio.1933">https://doi.org/10.1038/nchembio.1933</a>
  chicago: Inglés Prieto, Álvaro, Eva Gschaider-Reichhart, Markus Muellner, Matthias
    Nowak, Sebastian Nijman, Michael Grusch, and Harald L Janovjak. “Light-Assisted
    Small-Molecule Screening against Protein Kinases.” <i>Nature Chemical Biology</i>.
    Nature Publishing Group, 2015. <a href="https://doi.org/10.1038/nchembio.1933">https://doi.org/10.1038/nchembio.1933</a>.
  ieee: Á. Inglés Prieto <i>et al.</i>, “Light-assisted small-molecule screening against
    protein kinases,” <i>Nature Chemical Biology</i>, vol. 11, no. 12. Nature Publishing
    Group, pp. 952–954, 2015.
  ista: Inglés Prieto Á, Gschaider-Reichhart E, Muellner M, Nowak M, Nijman S, Grusch
    M, Janovjak HL. 2015. Light-assisted small-molecule screening against protein
    kinases. Nature Chemical Biology. 11(12), 952–954.
  mla: Inglés Prieto, Álvaro, et al. “Light-Assisted Small-Molecule Screening against
    Protein Kinases.” <i>Nature Chemical Biology</i>, vol. 11, no. 12, Nature Publishing
    Group, 2015, pp. 952–54, doi:<a href="https://doi.org/10.1038/nchembio.1933">10.1038/nchembio.1933</a>.
  short: Á. Inglés Prieto, E. Gschaider-Reichhart, M. Muellner, M. Nowak, S. Nijman,
    M. Grusch, H.L. Janovjak, Nature Chemical Biology 11 (2015) 952–954.
corr_author: '1'
date_created: 2018-12-11T11:53:25Z
date_published: 2015-10-12T00:00:00Z
date_updated: 2026-04-08T14:11:53Z
day: '12'
ddc:
- '571'
department:
- _id: HaJa
- _id: LifeSc
doi: 10.1038/nchembio.1933
ec_funded: 1
file:
- access_level: open_access
  checksum: e9fb251dfcb7cd209b83f17867e61321
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:10:51Z
  date_updated: 2020-07-14T12:45:12Z
  file_id: '4842'
  file_name: IST-2017-837-v1+1_ingles-prieto.pdf
  file_size: 1308364
  relation: main_file
file_date_updated: 2020-07-14T12:45:12Z
has_accepted_license: '1'
intvolume: '        11'
issue: '12'
language:
- iso: eng
month: '10'
oa: 1
oa_version: Submitted Version
page: 952 - 954
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
- _id: 255A6082-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: W1232-B24
  name: Molecular Drug Targets
publication: Nature Chemical Biology
publication_status: published
publisher: Nature Publishing Group
publist_id: '5471'
pubrep_id: '837'
quality_controlled: '1'
related_material:
  record:
  - id: '418'
    relation: dissertation_contains
    status: public
scopus_import: 1
status: public
title: Light-assisted small-molecule screening against protein kinases
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 11
year: '2015'
...
---
_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: 2025-04-15T06:43:12Z
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
- _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'
...
