Gly-Arg-Gly-Asp-Ser from MedChemExpress

Gly-Arg-Gly-Asp-Ser (GRGDS) is a pentapeptide that forms the cell-binding domain of a glycoprotein, osteopontin. Gly-Arg-Gly-Asp-Ser binds to integrin receptors αvβ3 and αvβ5 with estimated IC50 of ～5 and ～6.5 µM[1]