Colonel William A. Phillips

Tynorphin is a synthetic opioid peptide which is a potent and competitive inhibitor of the enkephalinase class of enzymes which break down the endogenous enkephalin peptides.[1] It specifically inactivates dipeptidyl aminopeptidase III (DPP3) with very high efficacy, but also inhibits neutral endopeptidase (NEP), aminopeptidase N (APN), and angiotensin-converting enzyme (ACE) to a lesser extent.[1] It has a pentapeptide structure with the amino acid sequence Val-Val-Tyr-Pro-Trp (VVYPW).

Tynorphin was discovered in an attempt to develop an enkephalinase inhibitor of greater potency than spinorphin.[1]

See also

References

  1. ^ a b c Yamamoto Y, Hashimoto J, Shimamura M, Yamaguchi T, Hazato T (April 2000). "Characterization of tynorphin, a potent endogenous inhibitor of dipeptidyl peptidaseIII". Peptides. 21 (4): 503–8. doi:10.1016/S0196-9781(00)00174-1. PMID 10822105. S2CID 30916029.