title: Met-enkephalin[Arg6,Phe7] interacts with the kappa-receptors on guinea-pig ileum.
mesh_terms: D000818:Animals; D004305:Dose-Response Relationship, Drug; D004723:Endorphins / Q000494:pharmacology*; D004744:Enkephalin, Methionine / Q000031:analogs & derivatives*; D004745:Enkephalins / Q000494:pharmacology*; D006168:Guinea Pigs; D007082:Ileum / Q000378:metabolism*; D009270:Naloxone / Q000494:pharmacology; D011957:Receptors, Opioid / Q000187:drug effects* / Q000378:metabolism
chemical_list: D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid; D009270:Naloxone; D004744:Enkephalin, Methionine; C027511:enkephalin-Met, Arg(6)-Phe(7)-