title: Molecular actions of opiates: historical overview and new findings on opiate receptor interactions with enkephalins and guanyl nucleotides.
mesh_terms: D000818:Animals; D004723:Endorphins / Q000502:physiology*; D004745:Enkephalins / Q000494:pharmacology / Q000502:physiology*; D006150:Guanine Nucleotides / Q000502:physiology*; D006801:Humans; D009294:Narcotics / Q000494:pharmacology*; D011957:Receptors, Opioid / Q000187:drug effects* / Q000302:isolation & purification
chemical_list: D004723:Endorphins; D004745:Enkephalins; D006150:Guanine Nucleotides; D009294:Narcotics; D011957:Receptors, Opioid