ITGAV: The alpha-V integrins are receptors for vitronectin, cytotactin, fibronectin, fibrinogen, laminin, matrix metalloproteinase-2, osteopontin, osteomodulin, prothrombin, thrombospondin and vWF. They recognize the sequence R-G-D in a wide array of ligands. In case of HIV-1 infection, the interaction with extracellular viral Tat protein seems to enhance angiogenesis in Kaposi's sarcoma lesions. Belongs to the integrin alpha chain family. 2 isoforms of the human protein are produced by alternative splicing.
Protein type: Cell adhesion; Membrane protein, integral; Motility/polarity/chemotaxis
Chromosomal Location of Human Ortholog: 2q31-q32
Cellular Component: filopodium membrane; focal adhesion; cell surface; membrane; microvillus membrane; integral to plasma membrane; plasma membrane; phagocytic vesicle; integrin complex; external side of plasma membrane
Molecular Function: viral receptor activity; voltage-gated calcium channel activity; opsonin binding; protein binding; insulin-like growth factor I binding; protein kinase C binding; protease binding; extracellular matrix binding; transforming growth factor beta binding; metal ion binding; fibronectin binding
Biological Process: negative regulation of lipid transport; axon guidance; extracellular matrix organization and biogenesis; entry of virus into host cell; positive regulation of cell adhesion; cell-matrix adhesion; negative chemotaxis; entry of symbiont into host cell by promotion of host phagocytosis; regulation of phagocytosis; antigen processing and presentation of peptide antigen via MHC class I; positive regulation of cell proliferation; antigen processing and presentation of exogenous peptide antigen via MHC class I; angiogenesis; cell adhesion; cell growth; integrin-mediated signaling pathway; cell migration; negative regulation of lipoprotein metabolic process; antigen processing and presentation of exogenous peptide antigen via MHC class I, TAP-dependent; cell-substrate adhesion; heterotypic cell-cell adhesion; negative regulation of low-density lipoprotein receptor biosynthetic process; positive regulation of osteoblast proliferation; blood coagulation; vascular endothelial growth factor receptor signaling pathway; leukocyte migration; apoptotic cell clearance; positive regulation of cell migration
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