By arginine Arg, glycine, Gly, aspartate Asp three amino acid sequence of Arg Gly - Asp (RGD) peptide, was the specific adhesive proteins with cell surface receptor proteins interacting recognition site.The cell surface membrane protein matter widely distributed super family, members of the adhesion receptor known as INTEGRIN INTEGRIN, mediated by many kinds of cells and cells, cells and the interaction between the substrate and involved in many biological processes, such as homeostasis regulation, phagocytosis, cell migration, cell, cell communication and information transmission lymphocyte recognition, platelet aggregation and so on.RGD and RGD sequence peptides, such as RGD peptide RGDS, four GRGDS RGDV, RGD peptides, RGD peptides, RGD peptides, double peptide, etc., has a wide range of biological functions, can be used to study some diseases. Therefore, the research significance about and RGD sequence peptides synthesis is very huge.

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