title: Pentapeptide (proctolin) associated with an identified neuron.
abstract: Individual neurons can be recognized and identified anatomically, physiologically, and biochemically in the insect central nervous system. Biochemical analyses of extracts prepared from one such identified neuron show it to be associated with a bioactive pentapeptide called proctolin. This peptide may be a neurotransmitter, and a preparation is established in which its physiological action can be studied at the cellular level.
mesh_terms: D000818:Animals; D001681:Biological Assay; D003058:Cockroaches; D005724:Ganglia / Q000032:analysis; D006110:Grasshoppers; D009119:Muscle Contraction / Q000187:drug effects; D009474:Neurons / Q000032:analysis*; D009479:Neuropeptides; D018377:Neurotransmitter Agents / Q000032:analysis* / Q000494:pharmacology; D009842:Oligopeptides / Q000032:analysis* / Q000494:pharmacology
chemical_list: D009479:Neuropeptides; D018377:Neurotransmitter Agents; D009842:Oligopeptides; C011536:proctolin