title: Interactions of opioid peptides with their receptors.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism*; D004723:Endorphins / Q000378:metabolism* / Q000502:physiology; D006168:Guinea Pigs; D008297:Male; D051379:Mice; D009130:Muscle, Smooth / Q000502:physiology; D018377:Neurotransmitter Agents / Q000502:physiology; D009924:Organ Culture Techniques; D011487:Protein Conformation; D011957:Receptors, Opioid / Q000302:isolation & purification / Q000378:metabolism*; D014018:Tissue Distribution
chemical_list: D004723:Endorphins; D018377:Neurotransmitter Agents; D011957:Receptors, Opioid