Structure of the pentapeptide proctolin, a proposed neurotransmitter in insects.
D000595:Amino Acid Sequence; D000818:Animals; D003058:Cockroaches / Q000032:analysis*; D009119:Muscle Contraction / Q000187:drug effects; D018377:Neurotransmitter Agents / Q000032:analysis / Q000138:chemical synthesis / Q000494:pharmacology; D009842:Oligopeptides / Q000032:analysis; D010526:Periplaneta / Q000032:analysis*
D018377:Neurotransmitter Agents; D009842:Oligopeptides