title: Synthesis of a new neuropeptide, the head activator from hydra.
mesh_terms: D000596:Amino Acids / Q000032:analysis; D001681:Biological Assay; D002851:Chromatography, High Pressure Liquid; D006829:Hydra / Q000032:analysis* / Q000187:drug effects; D009419:Nerve Tissue Proteins / Q000138:chemical synthesis*; D009479:Neuropeptides; D009842:Oligopeptides / Q000138:chemical synthesis*; D011761:Pyrrolidonecarboxylic Acid / Q000031:analogs & derivatives
chemical_list: D000596:Amino Acids; D009419:Nerve Tissue Proteins; D009479:Neuropeptides; D009842:Oligopeptides; C032522:head activator peptide; D011761:Pyrrolidonecarboxylic Acid