Involvement of a Small GTP-binding Protein (G Protein) Regulator, Small G Protein GDP Dissociation Stimulator, in Antiapoptotic Cell Survival Signaling
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چکیده
منابع مشابه
Allosteric Inhibition of the Regulator of G Protein Signaling–G Protein–Protein Interaction by CCG-4986
Regulator of G protein signaling (RGS) proteins act to temporally modulate the activity of G protein subunits after G proteincoupled receptor activation. RGS proteins exert their effect by directly binding to the activated G subunit of the G protein, catalyzing the accelerated hydrolysis of GTP and returning the G protein to its inactive, heterotrimeric form. In previous studies, we have sought...
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Regulator of G protein signaling (RGS) proteins are responsible for the rapid turnoff of G protein-coupled receptor signaling pathways. The major mechanism whereby RGS proteins negatively regulate G proteins is via the GTPase activating protein activity of their RGS domain. Structural and mutational analyses have characterized the RGS/G alpha interaction in detail, explaining the molecular mech...
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Heterotrimeric GPCRs (G-protein-coupled receptors) form the largest group of integral membrane receptor proteins and mediate diverse physiological processes. In addition to signalling via heterotrimeric G-proteins, GPCRs can also signal by interacting with various small G-proteins to regulate downstream effector pathways. The small G-protein superfamily is structurally classified into at least ...
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A growing body of evidence suggests that GPCRs exist and function as dimers or higher oligomers. The evidence for GPCR dimerization comes from biochemical, biophysical and functional studies. In addition, researchers have shown the occurrence of heterodimerization between different members of the GPCR family. Two receptors can interact with each other to make a dimer through their extracellular...
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ژورنال
عنوان ژورنال: Molecular Biology of the Cell
سال: 2000
ISSN: 1059-1524,1939-4586
DOI: 10.1091/mbc.11.5.1875