Tbio VAV3 Guanine nucleotide exchange factor VAV3

Protein Summary

Description

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). 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. [provided by RefSeq, Jul 2008]

Uniprot Accession IDs

• Q9UKW4
• B1AMM0
• B1APV5
• B4E232
• B7ZLR1
• E9PQ97
• O60498
• O95230
• Q9Y5X8
• VAV-3

Gene Name

• VAV3

Ensembl ID

• ENST00000370056
• ENSP00000359073
• ENSG00000134215
• ENST00000415432
• ENSP00000394897
• ENST00000527011
• ENSP00000432540

Knowledge Table

Most Knowledge About	Knowledge Value (0 to 1 scale)
protein domain	1
PubMedID	0.99
biological process	0.94
hub protein	0.92
transcription factor perturbation	0.91

Protein Classes

No PANTHER Classes or DTO Classes found

IDG Development Level Summary

Tdark

These are targets about which virtually nothing is known. They do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 117.58   (req: < 5)

Gene RIFs: 64   (req: <= 3)

Antibodies: 321   (req: <= 50)

Tbio

These targets do not have known drug or small molecule activities
- AND - satisfy two or more of the following criteria:

Pubmed score: 117.58   (req: >= 5)

Gene RIFs: 64   (req: > 3)

Antibodies: 321   (req: > 50)

- OR - satisfy the following criterion:

Gene Ontology Terms: 30

Tchem

Target has at least one ChEMBL compound with an activity cutoff of < 30 nM - AND - satisfies the preceding conditions

Active Ligand: 0

Tclin

Target has at least one approved drug - AND - satisfies the preceding conditions

Active Drug: 0