Secretin (28-54), human, which acts on human secretin receptors, is a 27-amino acid residue C-terminally amidated peptide, .

G140 is a potent and selective inhibitor of?cyclic GMP-AMP synthase (cGAS).

β-amyloid (15-21) is a fragment of Amyloid-β peptide, maybe used in the research of neurological disease. This fragment is involved in beta sheet formation.