integrin subunit alpha 5(ITGA5) Homo sapiens The product of this gene belongs to the integrin alpha chain family. Integrins are heterodimeric integral membrane proteins composed of an alpha subunit and a beta subunit that function in cell surface adhesion and signaling. The encoded preproprotein is proteolytically processed to generate light and heavy chains that comprise the alpha 5 subunit. This subunit associates with the beta 1 subunit to form a fibronectin receptor. This integrin may promote tumor invasion, and higher expression of this gene may be correlated with shorter survival time in lung cancer patients. Note that the integrin alpha 5 and integrin alpha V subunits are encoded by distinct genes. [provided by RefSeq, Oct 2015],
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Function:
Function:Integrin alpha-5/beta-1 is a receptor for fibronectin and fibrinogen. It recognizes the sequence R-G-D in its ligands. In case of HIV-1 infection, the interaction with extracellular viral Tat protein seems to enhance angiogenesis in Kaposi's sarcoma lesions.,similarity:Belongs to the integrin alpha chain family.,similarity:Contains 7 FG-GAP repeats.,subunit:Heterodimer of an alpha and a beta subunit. The alpha subunit is composed of an heavy and a light chain linked by a disulfide bond. Alpha-5 associates with beta-1. Interacts with HPS5 and NISCH. Interacts with HIV-1 Tat. Interacts with RAB21.,
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Cellular Localization:
Membrane; Single-pass type I membrane protein. Cell junction, focal adhesion . Cell surface .
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Tissue Expression:
Liver,Placenta,
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Research Areas:
>>Phagosome ;
>>PI3K-Akt signaling pathway ;
>>Focal adhesion ;
>>ECM-receptor interaction ;
>>Hematopoietic cell lineage ;
>>Regulation of actin cytoskeleton ;
>>Bacterial invasion of epithelial cells ;
>>Shigellosis ;
>>Pertussis ;
>>Yersinia infection ;
>>Human papillomavirus infection ;
>>Herpes simplex virus 1 infection ;
>>Proteoglycans in cancer ;
>>MicroRNAs in cancer ;
>>Hypertrophic cardiomyopathy ;
>>Arrhythmogenic right ventricular cardiomyopathy ;
>>Dilated cardiomyopathy