Description
Product Usage Information
Western Blotting: 1:1000
Storage
Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA and 50% glycerol. Store at -20°C. Do not aliquot the antibody.
Protocol
Available protocols: Western Blotting
Specificity / Sensitivity
Rac1/Cdc42 Antibody recognizes endogenous levels of total rac1 and cdc42 protein. Based on sequence similarities, the antibody may react with other small GTPases.
Species Reactivity: Human, Mouse, Rat, Monkey
Source / Purification
Polyclonal antibodies are produced by immunizing animals with a synthetic peptide corresponding to residues near the amino termini of human rac1 and cdc42. Antibodies are purified using protein A and peptide affinity chromatography.
Background
Rac and Cdc42 are members of the Rho-GTPase family. In mammals, Rac exists as three isoforms, Rac1, Rac2 and Rac3, which are highly similar in sequence. Rac1 and Cdc42, the most widely studied of this group, are ubiquitously expressed. Rac2 is expressed in cells of hematopoietic origin, and Rac3, while highly expressed in brain, is also found in many other tissues. Rac and Cdc42 play key signaling roles in cytoskeletal reorganization, membrane trafficking, transcriptional regulation, cell growth and development (1). GTP binding stimulates the activity of Rac/Cdc42, and the hydrolysis of GTP to GDP through the protein's intrinsic GTPase activity, rendering it inactive. GTP hydrolysis is aided by GTPase activating proteins (GAPs), while exchange of GDP for GTP is facilitated by guanine nucleotide exchange factors (GEFs). Another level of regulation is achieved through the binding of RhoGDI, a guanine nucleotide dissociation inhibitor, which retains Rho family GTPases, including Rac and Cdc42, in their inactive GDP-bound state (2,3).
Alternate Names
CDC42; CDC42Hs; Cell division control protein 42 homolog; cell division cycle 42; cell division cycle 42 (GTP binding protein, 25kDa); Cell migration-inducing gene 5 protein; dJ224A6.1.1 (cell division cycle 42 (GTP-binding protein, 25kD)); dJ224A6.1.2 (cell division cycle 42 (GTP-binding protein, 25kD)); G25K; G25K GTP-binding protein; growth-regulating protein; GTP binding protein, 25kDa; GTP-binding protein, 25kD; MGC111543; MIG5; migration-inducing gene 5; MRD48; p21-Rac1; Rac family small GTPase 1; Rac-1; RAC1; Ras-like protein TC25; Ras-related C3 botulinum toxin substrate 1; ras-related C3 botulinum toxin substrate 1 (rho family, small GTP binding protein Rac1); rho family, small GTP binding protein Rac1; small GTP binding protein CDC42; TC-25; TC25; TKS
