title: Evidence for the existence of a mutated enkephalin sequence in preproenkephalin.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002417:Cattle; D004745:Enkephalins / Q000032:analysis* / Q000235:genetics*; D009154:Mutation; D011498:Protein Precursors / Q000032:analysis*
chemical_list: D004745:Enkephalins; D011498:Protein Precursors; C033660:preproenkephalin