title: Bifunctional enkephalin analogues for affinity separation purposes.
mesh_terms: D000818:Animals; D001360:Avidin; D001710:Biotin; D001921:Brain / Q000378:metabolism; D002846:Chromatography, Affinity / Q000379:methods*; D004723:Endorphins; D004745:Enkephalins; D008024:Ligands; D051381:Rats; D011957:Receptors, Opioid / Q000378:metabolism; D013329:Structure-Activity Relationship; D013574:Synaptosomes / Q000378:metabolism
chemical_list: D004723:Endorphins; D004745:Enkephalins; D008024:Ligands; D011957:Receptors, Opioid; D001360:Avidin; D001710:Biotin