title: Preparation and properties of lipotropin C-fragment with anionic substituents attached to the lysine residues.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism; D004091:Hydromorphone / Q000378:metabolism; D008239:Lysine / Q000378:metabolism; D009270:Naloxone / Q000378:metabolism; D010446:Peptide Fragments / Q000302:isolation & purification* / Q000378:metabolism; D051381:Rats; D011957:Receptors, Opioid; D008083:beta-Lipotropin / Q000032:analysis*
chemical_list: D010446:Peptide Fragments; D011957:Receptors, Opioid; D009270:Naloxone; D008083:beta-Lipotropin; D008239:Lysine; D004091:Hydromorphone