This is a fibronectinfragment, an adhesion peptide that displays strong binding affinity to thrombin-stimulated platelets. It is RGD consisting of sequence.
Fibronectin is a high-molecular weight (~440kDa) extracellular matrix glycoprotein that binds to membrane-spanning receptor proteins called integrins.In addition to integrins, fibronectin also binds extracellular matrix components such as collagen, fibrin