title: Analgesic activity of lipotropin C fragment depends on carboxyl terminal tetrapeptide.
mesh_terms: D000595:Amino Acid Sequence; D000698:Analgesia; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism*; D009022:Morphine Derivatives / Q000378:metabolism; D009270:Naloxone / Q000378:metabolism; D009842:Oligopeptides / Q000378:metabolism; D010446:Peptide Fragments / Q000378:metabolism; D011957:Receptors, Opioid / Q000378:metabolism*; D013329:Structure-Activity Relationship; D013574:Synaptosomes / Q000378:metabolism; D013997:Time Factors; D008083:beta-Lipotropin / Q000378:metabolism*
chemical_list: D009022:Morphine Derivatives; D009842:Oligopeptides; D010446:Peptide Fragments; D011957:Receptors, Opioid; D009270:Naloxone; D008083:beta-Lipotropin