VAV1
Human protein and coding gene
From Wikipedia, the free encyclopedia
Proto-oncogene vav is a protein that in humans is encoded by the VAV1 gene.[5]
External IDsOMIM: 164875; MGI: 98923; HomoloGene: 3961; GeneCards: VAV1; OMA:VAV1 - orthologs
Function
The protein encoded by this proto-oncogene is a member of the Dbl family of guanine nucleotide exchange factors (GEF) for the Rho family of GTP binding proteins. The protein is important in hematopoiesis, playing a role in T-cell and B-cell development and activation. This particular GEF has been identified as the specific binding partner of Nef proteins from HIV-1. Coexpression and binding of these partners initiates profound morphological changes, cytoskeletal rearrangements and the JNK/SAPK signaling cascade, leading to increased levels of viral transcription and replication.[6]