RGD-4C is a arginine-glycine-aspartic acid peptide (ACDCRGDCFC) with integrin binding activity. The Arg-Gly-Asp (RGD) sequence serves as the primary integrin recognition site in extracellular matrix proteins, and peptides containing this sequence can mimic the recognition specificity of the matrix proteins. RGD-4C is a αv-integrin ligand, can conjugate with bioactive molecule to exert antitumor effects in animal models.

β-Amyloid/A4 Protein Precusor (319-335) (APP (319-335)) is a peptide fragment of β-Amyloid/A4 protein precursor (APP). β-Amyloid/A4 Protein Precusor (319-335) can recognize the heparinase-insensitive site that contains the neuritotropic activity of APP.

Aldosterone Secretion Inhibiting Factor (1-35) (bovine)