Potent irreversible αVβ3 Integrin antagonist (Ki = 0.27 nM). Disrupts attachment of osteoclasts to bone and inhibits bone reabsorption (IC50 = 0.1 nM). Prevents ADP-induced Platelet aggregation via inhibition of glycoprotein IIb/IIIa (GpIIb/IIIa, αIIbβ3) receptors (IC50 = 30 nM) in vitro.
Application:
Echistatin has been used:as an inhibitor of integrin function to study the role of microfibril-associated glycoprotein-1 (Magp1) in the morphogenesis of vascular structures for the preparation of microbubbles targeted to αvβ3 integrins in tumor angiogenesis imaging as a conjugate to αvβ3 in flow cytometric binding studies