Purification and properties of enkephalin - the possible endogenous ligand for the morphine receptor.
D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001681:Biological Assay; D001921:Brain / Q000378:metabolism*; D001923:Brain Chemistry; D002850:Chromatography, Gel; D004305:Dose-Response Relationship, Drug; D004347:Drug Interactions; D004590:Electrophoresis, Paper; D008297:Male; D008722:Methods; D051379:Mice; D008970:Molecular Weight; D009020:Morphine / Q000378:metabolism*; D009022:Morphine Derivatives / Q000494:pharmacology; D009292:Narcotic Antagonists / Q000494:pharmacology; D009451:Neuroeffector Junction / Q000187:drug effects; D010455:Peptides / Q000032:analysis / Q000302:isolation & purification* / Q000494:pharmacology; D011955:Receptors, Drug; D013552:Swine; D014649:Vas Deferens / Q000187:drug effects
D000596:Amino Acids; D009022:Morphine Derivatives; D009292:Narcotic Antagonists; D010455:Peptides; D011955:Receptors, Drug; D009020:Morphine