title: Opioid receptors for the dynorphin peptides.
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism; D004399:Dynorphins / Q000378:metabolism*; D007082:Ileum / Q000378:metabolism; D008297:Male; D011957:Receptors, Opioid / Q000378:metabolism*; D017473:Receptors, Opioid, kappa; D013329:Structure-Activity Relationship; D014018:Tissue Distribution; D014649:Vas Deferens / Q000378:metabolism
chemical_list: D011957:Receptors, Opioid; D017473:Receptors, Opioid, kappa; D004399:Dynorphins