Integrin alpha-V/beta-3 is a receptor for cytotactin, fibronectin, laminin, matrix metalloproteinase-2, osteopontin, osteomodulin, prothrombin, thrombospondin, vitronectin and von Willebrand factor. Integrin alpha-IIb/beta-3 is a receptor for fibronectin, fibrinogen, plasminogen, prothrombin, thrombospondin and vitronectin. Integrins alpha-IIb/beta-3 and alpha-V/beta-3 recognize the sequence R-G-D in a wide array of ligands. Integrin alpha-IIb/beta-3 recognizes the sequence H-H-L-G-G-G-A-K-Q-A-G-D-V in fibrinogen gamma chain. Following activation integrin alpha-IIb/beta-3 brings about platelet/platelet interaction through binding of soluble fibrinogen. This step leads to rapid platelet aggregation which physically plugs ruptured endothelial surface. In case of HIV-1 infection, the interaction with extracellular viral Tat protein seems to enhance angiogenesis in Kaposi's sarcoma lesions.
Recombinant Integrin beta 3 Antibody (Ab110871) - IHC Immunohistochemistry analysis of paraffin-embedded human tonsil tissue labelling Integrin beta 3 with Recombinant Integrin beta 3 Antibody (Ab110871) at 1/100 dilution. The section was incubated with Ab110871 for 30 mins at room temperature. Perform heat mediated antigen retrieval with Tris/EDTA buffer pH 9.0 was used for antigen retrieval.