Arg-Gly-Asp-Cys is the binding motif of fibronectin and cell adhesion molecules, which can inhibit platelet aggregation and fibrinogen binding.

Orexin A human, rat, mouse, a 33 amino acid excitatory neuropeptide, orchestrates diverse central and peripheral processes. Orexin A human, rat, mouse has been used to study its effect on the functioning of porcine pancreatic islets. It has also been used as an orexin receptor 1 (OX1R) antagonist to study the effect of orexin systems in the effect of etonogestrel on respiratory response to prolonged metabolic acidosis.

Nucleoprotein (118-126),a fragment of Nucleoprotein, is a 9-aa peptide .