|Application ||WB, FC|
|Calculated MW||97776 Da|
|Other Names||Guanine nucleotide exchange factor VAV3, VAV-3, VAV3|
|Target/Specificity||A synthetic peptide corresponding to residues near the C-term of human Vav3 was used as an immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Vav3 Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Exchange factor for GTP-binding proteins RhoA, RhoG and, to a lesser extent, Rac1. Binds physically to the nucleotide-free states of those GTPases. Plays an important role in angiogenesis. Its recruitment by phosphorylated EPHA2 is critical for EFNA1- induced RAC1 GTPase activation and vascular endothelial cell migration and assembly (By similarity). May be important for integrin-mediated signaling, at least in some cell types. In osteoclasts, along with SYK tyrosine kinase, required for signaling through integrin alpha-v/beta-1 (ITAGV-ITGB1), a crucial event for osteoclast proper cytoskeleton organization and function. This signaling pathway involves RAC1, but not RHO, activation. Necessary for proper wound healing. In the course of wound healing, required for the phagocytotic cup formation preceding macrophage phagocytosis of apoptotic neutrophils. Responsible for integrin beta-2 (ITGB2)-mediated macrophage adhesion and, to a lesser extent, contributes to beta-3 (ITGB3)- mediated adhesion. Does not affect integrin beta-1 (ITGB1)- mediated adhesion (By similarity).|
|Tissue Location||Isoform 1 and isoform 3 are widely expressed; both are expressed at very low levels in skeletal muscle. In keratinocytes, isoform 1 is less abundant than isoform 3. Isoform 3 is detected at very low levels, if any, in adrenal gland, bone marrow, spleen, fetal brain and spinal chord; in these tissues, isoform 1 is readily detectable.|
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Provided below are standard protocols that you may find useful for product applications.
The Vav family are Rho/Rac guanosine nucleotide exchange factors (GEFs), consisting of three members in mammalian cells (Vav, Vav2, Vav3) and one in nematodes (CelVav) (1). Vav3 is expressed in most hematopoietic cells and non-hematopoietic tissues except ovary and skeletal muscles. T-cell stimulated and tyrosine phosphorylated Vav3 acts as an exchange factor for GTP-binding proteins RhoA, RhoG, and Rac1 (2). Also, tyrosine phosphorylated Vav3 mediates RTK signalizing, specifically IR, IGFR, and EGFR-mediated signaling pathways. Vav3 has been linked to as a factor for cell morphology modulation and an inducer for cell transformation (3).
1. Bustelo XR. Rev Oncog 7:65-88, 1996.
2. Bustelo XR. Mol Cell Biol 20:1461-1477, 2000.
3. Zeng L, et al. Mol Cell Bio 20:9212-9224, 2000.
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