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This gene encodes a member of the Rho family of small GTPases, which cycle between inactive GDP-bound and active GTP-bound states and function as molecular switches in signal transduction cascades. Rho proteins promote reorganization of the actin cytoskeleton and regulate cell shape, attachment, and motility. The encoded protein is an important signalling protein for sarcomere assembly and has been shown to play a significant role in the exocytosis of the solute carrier family 2, facilitated glucose transporter member 4 and other proteins, possibly acting as the signal that turns on the membrane fusion machinery. Three related pseudogene have been identified on chromosomes 2 and 14. [provided by RefSeq, Aug 2011]
P17081 [Direct mapping] Rho-related GTP-binding protein RhoQ V9HWD0 [Target identity:100%; Query identity:100%] Epididymis secretory protein Li 42; Ras homolog gene family, member Q, isoform CRA_d
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Predicted intracellular proteins Protein evidence (Kim et al 2014) Protein evidence (Ezkurdia et al 2014)
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GO:0003924 [GTPase activity] GO:0005515 [protein binding] GO:0005522 [profilin binding] GO:0005525 [GTP binding] GO:0005622 [intracellular] GO:0005829 [cytosol] GO:0005884 [actin filament] GO:0005886 [plasma membrane] GO:0007165 [signal transduction] GO:0007264 [small GTPase mediated signal transduction] GO:0008286 [insulin receptor signaling pathway] GO:0008360 [regulation of cell shape] GO:0015031 [protein transport] GO:0016020 [membrane] GO:0030660 [Golgi-associated vesicle membrane] GO:0030866 [cortical actin cytoskeleton organization] GO:0032427 [GBD domain binding] GO:0032869 [cellular response to insulin stimulus] GO:0032956 [regulation of actin cytoskeleton organization] GO:0045121 [membrane raft] GO:0045944 [positive regulation of transcription from RNA polymerase II promoter] GO:0046039 [GTP metabolic process] GO:0046326 [positive regulation of glucose import] GO:0051056 [regulation of small GTPase mediated signal transduction] GO:0051491 [positive regulation of filopodium assembly] GO:0070062 [extracellular exosome] GO:0090005 [negative regulation of establishment of protein localization to plasma membrane]