<prompt> The amino acid which on decarboxylation gives rise to a product with potent vasodilator propeies isHistidineArginineGlutamateAspaate  <response>: Neurotransmitters obtained from amino acids Amino acidNeurotransmitterNatureFunctionGlutamateGABAInhibitory neurotransmitterHistidineHistaminePotent vasodilator, bronchospasm, stimulates gastric acid secretionTyrosineTyramine, Epinephrine, Norepinephrine, Dopamine, DOPATryptophan5-hydroxytryptamine SerotoninRegulation of pleasures related to motivation emotional arousal. Regulate appetite, sleep, memory and learning, temperature, mood. MelatoninConnected with sleep-wake cycle and biological rhythm. Blocks MSH and ACTH secretions CysteineTaurineInhibitory neurotransmitterGlycineGlycineInhibitory neurotransmitterGlutamateGlutamateExcitatory neurotransmitterAspaateAspaateExcitatoryInhibitory neurotransmitterArginineNitric oxideVasodilator 