Samuel M Walsh, Signe Mathiasen, Sune M Christensen, Jonathan F Fay, Christopher King, Davide Provasi, Ernesto Borrero, Søren G F Rasmussen, Juan Jose Fung, Marta Filizola, Kalina Hristova, Brian Kobilka, David L Farrens, Dimitrios Stamou
G-protein-coupled receptors (GPCRs) control vital cellular signaling pathways. GPCR oligomerization is proposed to increase signaling diversity. However, many reports have arrived at disparate conclusions regarding the existence, stability, and stoichiometry of GPCR oligomers, partly because of cellular complexity and ensemble averaging of intrareconstitution heterogeneities that complicate the interpretation of oligomerization data. To overcome these limitations, we exploited fluorescence-microscopy-based high-content analysis of single proteoliposomes...
July 17, 2018: Biophysical Journal