|Reactivity||Human, Mouse, Rat|
|Calculated MW||87058 Da|
|Other Names||Integrin beta-3, Platelet membrane glycoprotein IIIa, GPIIIa, CD61, ITGB3, GP3A|
|Target/Specificity||A synthetic peptide corresponding to residues in human Integrin beta-3 (CD61 antigen) was used as an immunogen.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||Integrin beta-3 (CD61) Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Integrin alpha-V/beta-3 (ITGAV:ITGB3) is a receptor for cytotactin, fibronectin, laminin, matrix metalloproteinase-2, osteopontin, osteomodulin, prothrombin, thrombospondin, vitronectin and von Willebrand factor. Integrin alpha-IIb/beta-3 (ITGA2B:ITGB3) 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. Fibrinogen binding enhances SELP expression in activated platelets (By similarity). ITGAV:ITGB3 binds to fractalkine (CX3CL1) and acts as its coreceptor in CX3CR1-dependent fractalkine signaling (PubMed:23125415, PubMed:24789099). ITGAV:ITGB3 binds to NRG1 (via EGF domain) and this binding is essential for NRG1-ERBB signaling (PubMed:20682778). ITGAV:ITGB3 binds to FGF1 and this binding is essential for FGF1 signaling (PubMed:18441324). ITGAV:ITGB3 binds to IGF1 and this binding is essential for IGF1 signaling (PubMed:19578119). ITGAV:ITGB3 binds to PLA2G2A via a site (site 2) which is distinct from the classical ligand-binding site (site 1) and this induces integrin conformational changes and enhanced ligand binding to site 1 (PubMed:18635536, PubMed:25398877). ITGAV:ITGB3 acts as a receptor for fibrillin-1 (FBN1) and mediates R-G-D-dependent cell adhesion to FBN1 (PubMed:12807887).|
|Cellular Location||Cell membrane; Single- pass type I membrane protein. Cell projection, lamellipodium membrane Cell junction, focal adhesion|
|Tissue Location||Isoform beta-3A and isoform beta-3C are widely expressed. Isoform beta-3A is specifically expressed in osteoblast cells; isoform beta-3C is specifically expressed in prostate and testis|
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Provided below are standard protocols that you may find useful for product applications.
Integrin beta-3 (CD61 antigen, GP IIIa) is a member of the integrin family of integral cell-surface proteins composed of an alpha chain and a beta chain. A given chain may combine with multiple partners resulting in different integrins (1). Integrin beta-3 forms a Ca2+-dependent heterodimer complex with the GP IIb chain in platelets (2). The cytoplasmic domain of Integrin beta-3 has be suggested to have a key role in cell adhesion (3). Following activation integrin beta-3 brings about platelet/platelet interaction through binding of soluble fibrinogen. This step leads to rapid platelet aggregation which physically plugs ruptured endothelial surfaces (4).
1. NCBI Reference Sequence (RefSeq): a curated non- redundant sequence database of genomes, transcripts and proteins Pruitt KD, Tatusova, T, Maglott DR Nucleic Acids Res 2007 Jan 1;35(Database issue):D61-5 2. Fitzgerald LA, et al. J Biol Chem 262(9):3936-9, 1987 3. Kumar CS, et al. J Biol Chem 272(26):16390-7, 1997 4. The UniProt Consortium. The Universal Protein Resource (UniProt). Nucleic Acids Res. 36:D190-D195 (2008).
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