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Protein Page:
ITGA2B (human)

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. Note: This description may include information from UniProtKB.
Protein type: Cell adhesion; Membrane protein, integral; Motility/polarity/chemotaxis
Chromosomal Location of Human Ortholog: 17q21.32
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
Reference #:  P08514 (UniProtKB)
Alt. Names/Synonyms: CD41; CD41B; GP2B; GPalpha IIb; GPIIb; GTA; HPA3; integrin alpha 2b; Integrin alpha-IIb; Integrin alpha-IIb heavy chain; Integrin alpha-IIb light chain, form 1; Integrin alpha-IIb light chain, form 2; integrin, alpha 2b (platelet glycoprotein IIb of IIb/IIIa complex, antigen CD41); ITA2B; ITGA2B; ITGAB; platelet fibrinogen receptor, alpha subunit; Platelet membrane glycoprotein IIb; platelet-specific antigen BAK
Gene Symbols: ITGA2B
Molecular weight: 113,377 Da
Basal Isoelectric point: 5.21  Predict pI for various phosphorylation states
CST Pathways:  Actin Dynamics  |  GPCR Signaling to MAPKs  |  Growth And Differentiation Control by MAPKs  |  PI3K/Akt Signaling
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