Effector membrane translocation biosensors reveal G protein and βarrestin coupling profiles of 100 therapeutically relevant GPCRs

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  • Charlotte Avet
  • Arturo Mancini
  • Billy Breton
  • Christian Le Gouill
  • Hauser, Alexander Sebastian
  • Claire Normand
  • Hiroyuki Kobayashi
  • Florence Gross
  • Mireille Hogue
  • Viktoriya Lukasheva
  • Stéphane St-Onge
  • Marilyn Carrier
  • Madeleine Héroux
  • Sandra Morissette
  • Eric B. Fauman
  • Jean Philippe Fortin
  • Stephan Schann
  • Xavier Leroy
  • Gloriam, David E.
  • Michel Bouvier

The recognition that individual GPCRs can activate multiple signaling pathways has raised the possibility of developing drugs selectively targeting therapeutically relevant ones. This requires tools to determine which G proteins and βarrestins are activated by a given receptor. Here, we present a set of BRET sensors monitoring the activation of the 12 G protein subtypes based on the translocation of their effectors to the plasma membrane (EMTA). Unlike most of the existing detection systems, EMTA does not require modification of receptors or G proteins (except for Gs). EMTA was found to be suitable for the detection of constitutive activity, inverse agonism, biased signaling and polypharmacology. Profiling of 100 therapeutically relevant human GPCRs resulted in 1500 pathway-specific concentration-response curves and revealed a great diversity of coupling profiles ranging from exquisite selectivity to broad promiscuity. Overall, this work describes unique resources for studying the complexities underlying GPCR signaling and pharmacology.

OriginalsprogEngelsk
Artikelnummere74101
TidsskrifteLife
Vol/bind11
Antal sider34
ISSN2050-084X
DOI
StatusUdgivet - 2022

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© 2022, Avet et al.

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