ITGA2B Antibody – Mouse Monoclonal

This gene encodes a member of the integrin alpha chain family of proteins. The encoded preproprotein is proteolytically processed to generate light and heavy chains that associate through disulfide linkages to form a subunit of the alpha-IIb/beta-3 integrin cell adhesion receptor. This receptor plays a crucial role in the blood coagulation system, by mediating platelet aggregation. Mutations in this gene are associated with platelet-type bleeding disorders, which are characterized by a failure of platelet aggregation, including Glanzmann thrombasthenia. [provided by RefSeq, Jan 2016]

ITGA2B: Integrin alpha-IIb/beta-3 is a receptor for fibronectin, fibrinogen, plasminogen, prothrombin, thrombospondin and vitronectin. It recognizes the sequence R-G-D in a wide array of ligands. It 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 cell surface. Belongs to the integrin alpha chain family. 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-IIb associates with beta-3. Directly interacts with RNF181. 3 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: 17q21.31

Cellular Component: cell surface; integral to plasma membrane; plasma membrane; platelet alpha granule membrane

Molecular Function: identical protein binding; protein binding

Biological Process: cell adhesion; extracellular matrix organization and biogenesis; integrin-mediated signaling pathway; platelet degranulation

Disease: Bleeding Disorder, Platelet-type, 16; Glanzmann Thrombasthenia