title: beta-Endorphin: replacement of glutamic acid in position 8 by glutamine increases analgesic potency and opiate receptor-binding activity.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001522:Behavior, Animal / Q000187:drug effects; D002460:Cell Line; D004723:Endorphins / Q000138:chemical synthesis / Q000378:metabolism / Q000494:pharmacology*; D005910:Glioma; D006801:Humans; D006822:Hybrid Cells / Q000378:metabolism; D051379:Mice; D009447:Neuroblastoma; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*; D013045:Species Specificity; D001615:beta-Endorphin / Q000031:analogs & derivatives
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid; D001615:beta-Endorphin; C031261:glutamine-8 beta-endorphin