RAC1 Antibody – Mouse Monoclonal

The protein encoded by this gene is a GTPase which belongs to the RAS superfamily of small GTP-binding proteins. Members of this superfamily appear to regulate a diverse array of cellular events, including the control of cell growth, cytoskeletal reorganization, and the activation of protein kinases. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

RAC1: a plasma membrane-associated member of the Rho-GTPase family. Plays a key role in cytoskeletal reorganization, membrane trafficking, transcriptional regulation and cell growth and development. GTP binding stimulates its activity. Phosphorylation by Akt may inhibit GTP binding of Rac1, therefore attenuating the downstream signal transduction pathway. Found in a trimeric complex composed of DOCK1 and ELMO1, which plays a central role in phagocytosis of apoptotic cells. Two alternatively spliced isoforms have been described.

Protein type: G protein; Motility/polarity/chemotaxis; G protein, monomeric; G protein, monomeric, Rho

Chromosomal Location of Human Ortholog: 7p22

Cellular Component: Golgi membrane; extrinsic to plasma membrane; focal adhesion; membrane; lamellipodium; cytoplasm; melanosome; plasma membrane; actin filament; trans-Golgi network; cytosol; phagocytic cup

Molecular Function: GTPase activity; protein binding; enzyme binding; GTP binding; GTP-dependent protein binding; thioesterase binding; Rho GDP-dissociation inhibitor binding; protein kinase binding; Rab GTPase binding

Biological Process: viral reproduction; nerve growth factor receptor signaling pathway; positive regulation of apoptosis; metabolic process; cell motility involved in cell locomotion; regulation of cell migration; small GTPase mediated signal transduction; positive regulation of stress fiber formation; cell adhesion; bone resorption; platelet activation; anatomical structure morphogenesis; mast cell chemotaxis; dendrite morphogenesis; positive regulation of Rho protein signal transduction; regulation of defense response to virus by virus; negative regulation of interleukin-23 production; T cell costimulation; cerebral cortex radially oriented cell migration; actin cytoskeleton organization and biogenesis; axon guidance; cell-matrix adhesion; localization within membrane; positive regulation of focal adhesion formation; actin filament polymerization; ephrin receptor signaling pathway; response to wounding; inflammatory response; regulation of hydrogen peroxide metabolic process; lamellipodium biogenesis; embryonic olfactory bulb interneuron precursor migration; intercellular junction assembly and maintenance; Wnt receptor signaling pathway, planar cell polarity pathway; positive regulation of phosphoinositide 3-kinase activity; engulfment of apoptotic cell; G-protein coupled receptor protein signaling pathway; cell proliferation; hyperosmotic response; positive regulation of actin filament polymerization; organization of an anatomical structure; auditory receptor cell morphogenesis; ruffle organization and biogenesis; innate immune response; negative regulation of receptor-mediated endocytosis; positive regulation of protein amino acid phosphorylation; blood coagulation; cell motility; vascular endothelial growth factor receptor signaling pathway; positive regulation of DNA replication