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  Genetically-targeted optical control of an endogenous G protein-coupled receptor

Donthamsetti, P. C., Broichhagen, J., Vyklicky, V., Stanley, C., Fu, Z., Visel, M., et al. (2019). Genetically-targeted optical control of an endogenous G protein-coupled receptor. Journal of the American Chemical Society, e-pup: 895, pp. 1-11. doi:10.1021/jacs.9b02895.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-EAF8-E Version Permalink: http://hdl.handle.net/21.11116/0000-0004-98D5-0
Genre: Journal Article

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 Creators:
Donthamsetti, Prashant C., Author
Broichhagen, Johannes1, Author              
Vyklicky, Vojtech, Author
Stanley, Cherise, Author
Fu, Zhu, Author
Visel, Meike, Author
Levitz, Joshua L., Author
Javitch, Jonathan A., Author
Trauner, Dirk, Author
Isacoff, Ehud Y., Author
Affiliations:
1Chemical Biology, Max Planck Institute for Medical Research, Max Planck Society, ou_2364732              

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 Abstract: G protein-coupled receptors (GPCRs) are membrane proteins that play important roles in biology. However, our understanding of their function in complex living systems is limited because we lack tools that can target individual receptors with sufficient precision. State-of-the-art approaches, including DREADDs, optoXRs, and PORTL gated-receptors, control GPCR signaling with molecular-, cell type-, and temporal-specificity. Nonetheless, these tools are based on engi-neered non-native proteins that may (i) express at non-physiological levels, (ii) localize and turnover incorrectly, and/or (iii) fail to interact with endogenous partners. Alternatively, membrane-anchored ligands (t-toxins, DARTs) target endoge-nous receptors with molecular- and cell type-specificity but cannot be turned on and off. In this study, we used a combina-tion of chemistry, biology, and light to control endogenous metabotropic glutamate receptor 2 (mGluR2), a Family C GPCR, in primary cortical neurons. mGluR2 was rapidly, reversibly, and selectively activated with photoswitchable glutamate teth-ered to a genetically targeted-plasma membrane anchor (membrane anchored Photoswitchable Orthogonal Remotely Teth-ered Ligand; maPORTL). Photoactivation was tuned by adjusting the length of the PORTL as well as the expression level and geometry of the membrane anchor. Our findings provide a template for controlling endogenous GPCRs with cell type-specificity and high spatio-temporal precision.

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Language(s): eng - English
 Dates: 2019-06-24
 Publication Status: Published in print
 Pages: 11
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 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1021/jacs.9b02895
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Title: Journal of the American Chemical Society
  Other : J. Am. Chem. Soc.
  Abbreviation : JACS
Source Genre: Journal
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Publ. Info: Washington, DC : American Chemical Society
Pages: - Volume / Issue: e-pup Sequence Number: 895 Start / End Page: 1 - 11 Identifier: ISSN: 0002-7863
CoNE: https://pure.mpg.de/cone/journals/resource/954925376870