Integrin beta-3 (Protein name
), ITB3_HUMAN from NCBI database.
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General Annotation
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Antigen Annotation
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Gene name:
ITGB3(GP3A);
Protein name:
Integrin beta-3;
Alternative:
Platelet membrane glycoprotein IIIa(GPIIIa);
CD:
CD61;
Organism:
Human (Homo sapiens).
General Annotation
Sub Unit:
Heterodimer of an alpha and a beta subunit. Beta-3 associates with either alpha-IIb or alpha-V. Isoform Beta-3C interacts with FLNB. Interacts with COMP. Interacts with HIV-1 Tat. Interacts with PDIA6 following platelet stimulation.
Function:
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.
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Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM BETA-3C);FUNCTION;SUBCELLULAR LOCATION
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Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA] (ISOFORM BETA-3A)
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Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 56-120;VARIANTS PRO-59 AND ARG-66
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Cited for: NUCLEOTIDE SEQUENCE [MRNA] OF 707-788 (ISOFORM BETA-3B)
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Cited for: PHOSPHORYLATION AT TYR-773 AND TYR-785 (ISOFORM BETA-3A)
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Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-125
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Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-125
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Cited for: PHOSPHORYLATION [LARGE SCALE ANALYSIS] AT TYR-773;IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS]
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Cited for: IDENTIFICATION OF ALLOANTIGEN HPA-1A BY MASS SPECTROMETRY;ASSOCIATION TO ALLELE HLA-DRB3*01:01
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Cited for: GLYCOSYLATION [LARGE SCALE ANALYSIS] AT ASN-680
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Cited for: X-RAY CRYSTALLOGRAPHY (3.10 ANGSTROMS) OF 27-718;GLYCOSYLATION AT ASN-346; ASN-397; ASN-585 AND ASN-680
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Cited for: X-RAY CRYSTALLOGRAPHY (2.25 ANGSTROMS) OF 50-61 (ALLOANTIGEN HPA-1A) IN COMPLEX WITH HLA-DRA/HLA-DRB3 HETERODIMER
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Cited for: VARIANT HPA-1B PRO-59;DESCRIPTION OF ALLOANTIGEN SYSTEM PL(A)
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Cited for: VARIANT HPA-4B GLN-169;DESCRIPTION OF ALLOANTIGEN SYSTEM PEN
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Cited for: VARIANT CA(+)/TU(+) GLN-515;DESCRIPTION OF ALLOANTIGEN SYSTEM CA/TU
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Cited for: VARIANT SR(A) CYS-662;DESCRIPTION OF ALLOANTIGEN SYSTEM SR(A)
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Cited for: VARIANTS GT PRO-306; PHE-586; SER-598 AND SER-605
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Cited for: VARIANT GT ARG-586;CHARACTERIZATION OF VARIANT GT ARG-586
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Cited for: VARIANT ILE-166;CHARACTERIZATION OF VARIANT ILE-166
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Cited for: VARIANT GT VAL-150;CHARACTERIZATION OF VARIANT GT VAL-150
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Cited for: VARIANTS GT PRO-306 AND ASN-330;CHARACTERIZATION OF VARIANT GT ASN-330
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Cited for: VARIANT BDPLT16 HIS-749;CHARACTERIZATION OF VARIANT BDPLT16 HIS-749
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Cited for: VARIANTS GT TYR-64; ARG-144; PRO-222; ASP-247 AND MET-279;CHARACTERIZATION OF VARIANTS TYR-64; PRO-222; ASP-247 AND MET-279;SUBCELLULAR LOCATION
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