title: Kappa-opiate receptor sites: unique heat stability in vitro.
mesh_terms: D000818:Animals; D001921:Brain / Q000378:metabolism; D004745:Enkephalins / Q000378:metabolism; D006168:Guinea Pigs; D006358:Hot Temperature; D066298:In Vitro Techniques; D007700:Kinetics; D008297:Male; D011957:Receptors, Opioid / Q000378:metabolism*; D017473:Receptors, Opioid, kappa; D014357:Trypsin
chemical_list: D004745:Enkephalins; D011957:Receptors, Opioid; D017473:Receptors, Opioid, kappa; D014357:Trypsin