title: Enkephalinase
text: # Enkephalinase
  
  Enkephalinases are enzymes that degrade endogenous enkephalin opioid peptides. They include:
  
  * Aminopeptidase N (APN)
  * Neutral endopeptidase (NEP)
  * Dipeptidyl peptidase 3 (DPP3)
  * Carboxypeptidase A6 (CPA6)
  * Leucyl/cystinyl aminopeptidase (LNPEP)
  * Angiotensin-converting enzyme (ACE)
  