Molecular architecture of Gαo and the structural basis for RGS16-mediated deactivation [PDF]
, 2008 Heterotrimeric G proteins relay extracellular cues from heptahelical transmembrane receptors to downstream effector molecules. Composed of an α subunit with intrinsic GTPase activity and a βγ heterodimer, the trimeric complex dissociates upon receptor ...
Berman +34 more
core +4 more sources
Heterotrimeric G-protein signaling is critical to pathogenic processes in Entamoeba histolytica.
PLoS Pathogens, 2012 Heterotrimeric G-protein signaling pathways are vital components of physiology, and many are amenable to pharmacologic manipulation. Here, we identify functional heterotrimeric G-protein subunits in Entamoeba histolytica, the causative agent of amoebic ...
Dustin E Bosch +7 more
doaj +1 more source
Glucose attenuation of auxin-mediated bimodality in lateral root formation is partly coupled by the heterotrimeric G protein complex. [PDF]
PLoS ONE, 2010 Auxin and glucose are both essential elements in normal root development. The heterotrimeric G protein complex in Arabidopsis thaliana, defined as containing alpha (AtGPA1), beta (AGB1), and gamma (AGG) subunits and a GTPase accelerating protein called ...
Katherine S Booker +3 more
doaj +1 more source
Accessory proteins for heterotrimeric G-proteins in the kidney
Frontiers in Physiology, 2015 Heterotrimeric G-proteins play a fundamentally important role in regulating signal transduction pathways in the kidney. Accessory proteins are being identified as direct binding partners for heterotrimeric G-protein α or βγ subunits to promote more ...
Frank ePark
doaj +1 more source
A G protein-gated K channel is activated via beta 2-adrenergic receptors and G beta gamma subunits in Xenopus oocytes [PDF]
, 1995 In many tissues, inwardly rectifying K channels are coupled to seven- helix receptors via the Gi/Go family of heterotrimeric G proteins. This activation proceeds at least partially via G beta gamma subunits.
Dascal, Nathan +4 more
core +2 more sources
Diversity of heterotrimeric G-protein γ subunits in plants
BMC Research Notes, 2012 Background Heterotrimeric G-proteins, consisting of three subunits Gα, Gβ and Gγ are present in most eukaryotes and mediate signaling in numerous biological processes.
Trusov Yuri +2 more
doaj +1 more source
Dual positive and negative regulation of GPCR signaling by GTP hydrolysis [PDF]
, 2009 G protein-coupled receptors (GPCRs) regulate a variety of intracellular pathways through their ability to promote the binding of GTP to heterotrimeric G proteins. Regulator of G protein signaling (RGS) proteins increase the intrinsic GTPase activity of G-
Berg, Hugo van den +8 more
core +1 more source
Molecular Approaches To Target GPCRs in Cancer Therapy
Pharmaceuticals, 2011 Hundreds of G protein coupled receptor (GPCR) isotypes integrate and coordinate the function of individual cells mediating signaling between different organs in our bodies.
Giulio Innamorati +5 more
doaj +1 more source
eLife, 2021 It has become evident that activation of heterotrimeric G-proteins by cytoplasmic proteins that are not G-protein-coupled receptors (GPCRs) plays a role in physiology and disease.
Mikel Garcia-Marcos
doaj +1 more source
Structural basis for activation of trimeric Gi proteins by multiple growth factor receptors via GIV/Girdin. [PDF]
, 2014 A long-standing issue in the field of signal transduction is to understand the cross-talk between receptor tyrosine kinases (RTKs) and heterotrimeric G proteins, two major and distinct signaling hubs that control eukaryotic cell behavior.
Abagyan, Ruben +8 more
core +1 more source