Table 1 Endogenous opioid peptides and their precursors
From: Molecular and cellular mechanisms of the age-dependency of opioid analgesia and tolerance
Opioid Peptide | Precursor |
|---|---|
β-Endorphin | Pro-opiomelanocortin |
Met-enkephalin | Pro-enkephalin |
Leu-enkephalin | Pro-enkephalin |
Octapeptide | Pro-enkephalin |
Heptapeptide | Pro-enkephalin |
Dynorphin 1-8 | Pro-dynorphin |
Dynorphin 1-17 | Pro-dynorphin |
α-Neoendorphin | Pro-dynorphin |
β-Neoendorphin | Pro-dynorphin |
Nociceptin | Prepro-nociceptin |
Bocistatin | Prepro-nociceptin |