title: Guanyl nucleotide interactions with opiate receptors in guinea pig brain and ileum.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism*; D004090:Dihydromorphine / Q000378:metabolism*; D004723:Endorphins / Q000378:metabolism*; D004744:Enkephalin, Methionine / Q000031:analogs & derivatives*; D004745:Enkephalins / Q000378:metabolism*; D006160:Guanosine Triphosphate / Q000031:analogs & derivatives* / Q000494:pharmacology*; D006165:Guanylyl Imidodiphosphate / Q000494:pharmacology*; D006168:Guinea Pigs; D007082:Ileum / Q000378:metabolism*; D007700:Kinetics; D008297:Male; D009022:Morphine Derivatives / Q000378:metabolism*; D009928:Organ Specificity; D011957:Receptors, Opioid / Q000187:drug effects / Q000378:metabolism*
chemical_list: D004723:Endorphins; D004745:Enkephalins; D009022:Morphine Derivatives; D011957:Receptors, Opioid; D006165:Guanylyl Imidodiphosphate; D004744:Enkephalin, Methionine; C022118:enkephalinamide-Met, Ala(2)-; D006160:Guanosine Triphosphate; D004090:Dihydromorphine