Peptide biosynthesis.
D000818:Animals; D010450:Endopeptidases / Q000378:metabolism; D004723:Endorphins / Q000096:biosynthesis*; D004745:Enkephalins / Q000096:biosynthesis / Q000378:metabolism; D006801:Humans; D015260:Neprilysin; D011333:Pro-Opiomelanocortin / Q000096:biosynthesis; D011498:Protein Precursors / Q000096:biosynthesis
D004723:Endorphins; D004745:Enkephalins; D011498:Protein Precursors; C029992:proenkephalin; D011333:Pro-Opiomelanocortin; C033660:preproenkephalin; D010450:Endopeptidases; D015260:Neprilysin