title: beta-Endorphin: characteristics of binding sites in the rat brain.
mesh_terms: D000818:Animals; D001667:Binding, Competitive; D001921:Brain / Q000378:metabolism*; D002462:Cell Membrane / Q000378:metabolism; D004723:Endorphins / Q000378:metabolism*; D007700:Kinetics; D008297:Male; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*; D013329:Structure-Activity Relationship
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid