Angiotensin Converting Enzyme Inhibitor (ACE inhibitor), secreted by the Bothrops venom gland, inhibits the activity of the angiotensin-converting enzyme (ACE) and enhances the action of bradykinin by inhibiting the peptidases that inactivate it.Bothrops: H-pGlu-Trp-Pro-Arg-Pro-Gln-Ile-Pro-Pro-OH or H-pEWPRPQIPP-OH