Succinyl-(Pro58,D-Glu65)-Hirudin (56-65) (sulfated) is a hirugen-like peptide, and has high affnity for thrombin than Hirugen, with a KD < 100 nM. Succinyl-(Pro58,D-Glu65)-Hirudin (56-65) (sulfated) is an antithrombotic agent. Succinyl-(Pro58,D-Glu65)-Hirudin (56-65) (sulfated) inhibits the thrombin-induced fibrin clot formation with an IC50 value of 0.087 μM.

Ac-a-CGRP (19-37) (human)

{Val1}- exendin-3/4 is the first n-terminal 1-28 residue of exendin-4 peptide.