title: Dimeric enkephalins display enhanced affinity and selectivity for the delta opiate receptor.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000818:Animals; D001921:Brain / Q000378:metabolism; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D004723:Endorphins / Q000378:metabolism*; D004745:Enkephalins / Q000378:metabolism*; D066298:In Vitro Techniques; D008566:Membranes / Q000378:metabolism; D008970:Molecular Weight; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism*; D017465:Receptors, Opioid, delta; D013329:Structure-Activity Relationship
chemical_list: D000596:Amino Acids; D004723:Endorphins; D004745:Enkephalins; D011957:Receptors, Opioid; D017465:Receptors, Opioid, delta