Opioid binding sites in the midgut of the insect Leucophaea maderae (Blattaria).
D000818:Animals; D001665:Binding Sites; D003058:Cockroaches; D004064:Digestive System; D004745:Enkephalins / Q000378:metabolism; D011957:Receptors, Opioid / Q000302:isolation & purification* / Q000378:metabolism
D004745:Enkephalins; D011957:Receptors, Opioid; C027970:enkephalin, AlaNH2(5)-