Disintegrin DisBa-01

UniProtKB accession:  Q801Z4

Grouped By:  Matching UniProtKB accession

UniProtKB description:  This recombinant disintegrin antagonizes integrins alpha-IIb/beta-3 (ITGA2B/ITGB3) and alpha-V/beta-3 (ITGAV/ITGB3). On ITGA2B/ITGB3, it interferes with the outside/-in phosphorylation of the focal adhesion kinase (PTK2 / FAK) downstream of the integrin. It strongly inhibits platelet aggregation induced by ADP, thrombin, and collagen, abolishes and reverses dynamic platelet recruitment to immobilized fibrinogen. In vivo, it induces a dramatic increase in the tail bleeding time, and has a strong antithrombotic activity (PubMed:18508682). On ITGAV/ITGB3, it inhibits the adhesion of ITGAV/ITGB3-expressing human microvascular endothelial cell line and murine melanoma cell line to vitronectin (IC(50) are 555 nM and 225 nM, respectively), and transiently inhibits their proliferation without direct cell toxicity. In vivo, it potently inhibits angiogenesis and metastasis (PubMed:17952617), probably due to its capability to strongly inhibit the expression of VEGF and its receptors in endothelial cells (PubMed:22561350). It also inhibits tumor cell migration in vitro (PubMed:22069567).