Neuropeptides: multiple molecular forms, metabolic pathways, and receptors.

Animals Carboxypeptidase H Carboxypeptidases/metabolism Cholecystokinin/metabolism Enkephalins/metabolism Nerve Tissue Proteins/antagonists & inhibitors,metabolism Pro-Opiomelanocortin/metabolism Protein Precursors/metabolism Receptors, Neurotransmitter/metabolism Receptors, Opioid/metabolism Receptors, Tachykinin Tachykinins

Enkephalins Nerve Tissue Proteins Protein Precursors Receptors, Neurotransmitter Receptors, Opioid Receptors, Tachykinin Tachykinins proenkephalin Pro-Opiomelanocortin Cholecystokinin Carboxypeptidases Carboxypeptidase H