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Technical Data Sheet

VP2701

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Vav3 (a.a. 293-305)
Rabbit Polyclonal
Price
Size
Species Reactivity
MW

$245
100 μl
Hu, Rt, Ms
98 kDa

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Western blot of human Jurkat (lanes 1 & 4), HUVEC (lanes 2 & 5), and A431 (lanes 3 & 6) cells. The blots were probed with anti-Vav2 (a.a. 309-322) at a dilution of 1:500 (lanes 1-3) and anti-Vav3 (a.a. 293-305) at 1:500 (lanes 4-6).

Application
Dilution


ELISA
1:2000


WB
1:1000



End user should determine optimal dilution for their particular applications and experiments.Western blot membranes were incubated with diluted antibody in 5% non-fat milk, PBS, 0.04% Tween20 for 1hour at room temperature.
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Background
The Vav family of Rho-guanine nucleotide exchange factors, Vav1, Vav2, and Vav3, have central roles in transducing signals from cell surface receptors, such as integrin, growth factor and immune cell receptors to the cytoskeleton. This role includes receptor-mediated changes in the actin cytoskeleton and cell motility. Vav1 expression is normally restricted to hematopoietic cells, while Vav2 and Vav3 are more widely expressed. All three Vav isoforms have been shown to be abnormally expressed in several types of cancer. Vavs are composed of multiple domains, including a Dbl homology domain, a calponin homology domain, an acidic amino acid region, a pleckstrin homology domain, a cysteine-rich domain, and SH3 and SH2 domains. Vav activity is regulated by the phosphorylation status of several conserved tyrosine residues in the acidic region (In Vav2: Tyr-142, Tyr-159, and Tyr-172). These tyrosine residues are able to participate in autoinhibitory interactions with the Dbl homology domain and this interaction is prevented after phosphorylation of these sites leading to activation of Vav GEF activity.


Background References
Schuebel, K.E. et al. (1996) Oncogene 13:363.
Aghazadeh, B. (2000) Cell 102:625.
Wilsbacher, J.L. et al. (2006) Cell Comm. Signal. 4:5.
Immunogen
A synthetic peptide (coupled to KLH) corresponding to amino acid residues in the Dbl homology domain of human Vav3. This sequence has high homology with similar regions in rat and mouse Vav3, and has low homology to other Vav family members.
Buffer and Storage
Rabbit polyclonal, affinity-purified antibody is supplied in 100µl phosphate-buffered saline, 50% glycerol, 1 mg/ml BSA, and 0.05% sodium azide. Store at –20°C. Stable for 1 year.
Specificity
This antibody was affinity purified using Vav3 (a.a. 293-305) peptide (without carrier). The antibody detects a 98 kDa* protein corresponding to the molecular mass of Vav3 on SDS-PAGE immunoblots of human Jurkat cells. The antibody also strongly detects an unidentified protein at 120 kDa in Jurkat and K562.

*All molecular weights (MW) are confirmed by comparison to Bio-Rad Rainbow Markers and to western blot mobilities of known proteins with similar MW.
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