A new endogenous opioid peptide from bovine adrenal medulla: isolation and amino acid sequence of a dodecapeptide (BAM-12P).

Adrenal Medulla/analysis Amino Acid Sequence Amino Acids/analysis Animals Cattle Endorphins/analysis Enkephalin, Methionine/analogs & derivatives Enkephalins/analysis,immunology,pharmacology Guinea Pigs Hydrolysis In Vitro Techniques Muscle Contraction/drug effects Muscle, Smooth/drug effects Protein Precursors/analysis,immunology,pharmacology Radioimmunoassay Trypsin

Amino Acids Endorphins Enkephalins Protein Precursors Enkephalin, Methionine BAM 12P Trypsin