Guanine nucleotide exchange factor VAV3 is a protein that in humans is encoded by the VAV3 gene. This gene is a member of the VAV gene family. The VAV proteins are guanine nucleotide exchange factors (GEFs) for Rho family GTPases that activate pathways leading to actin cytoskeletal rearrangements and transcriptional alterations. This gene product acts as a GEF preferentially for RhoG, RhoA, and to a lesser extent, RAC1, and it associates maximally with the nucleotide-free states of these GTPases. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. VAV3 has been shown to interact with Grb2.
Background References
1. Al-Hawary SIS et al. VAV3 in human cancers: Mechanism and clinical implication. Pathol Res Pract. 2023 Aug
2. Gleeson PJ et al. CARD9, VAV3, and infection risk in IgA nephropathy. Kidney Int. 2023 May
Western blot analysis of VAV3 on different lysates with Rabbit anti-VAV3 antibody (HA722212) at 1/1,000 dilution.
Lane 1: Jurkat cell lysate (20 µg/Lane) Lane 2: HeLa cell lysate (20 µg/Lane) Lane 3: MCF7 cell lysate (low expression) (20 µg/Lane) Lane 4: Rat brain tissue lysate (40 µg/Lane)
Predicted band size: 98 kDa Observed band size: 98 kDa
Exposure time: 46 seconds; ECL: K1802;
4-20% SDS-PAGE gel.
Proteins were transferred to a PVDF membrane and blocked with 5% NFDM/TBST for 1 hour at room temperature. The primary antibody (HA722212) at 1/1,000 dilution was used in 5% NFDM/TBST at 4℃ overnight. Goat Anti-Rabbit IgG - HRP Secondary Antibody (HA1001) at 1/50,000 dilution was used for 1 hour at room temperature.
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