This RGD-containing sequence is integrin-binding site. RGD peptides are found in both extracellular matrix (ECM) (e.g., collagen, osteopontin, fibronectin, and vitronectin) and non-ECM proteins (e.g., disintegrins). RGD-containing peptides are recognized by several integrins. This peptide targets both alphavbeta3 and alpha5beta1 integrins. Interaction of the RGDN sequence with endothelial alpha5beta1 integrin causes endothelin-mediated arteriolar vasoconstriction. This peptide influences the IkappaB kinase (IKK)/nuclear factor-kappaB (NF-kappaB) activation. It also controls the cardiac contractile function.