Tryptophan HydroxylaseTryptophanSerotoninRaphe NucleiPhenylalanine HydroxylaseFenclonineTyrosine 3-MonooxygenaseSerotonergic Neurons5-HydroxytryptophanSerotonin Plasma Membrane Transport ProteinsSerotonin AgentsTryptophan OxygenaseSteroid 21-HydroxylaseHydroxyindoleacetic AcidNeurotransmitter AgentsTryptophan SynthasePineal GlandEnterochromaffin CellsAromatic-L-Amino-Acid Decarboxylases5,7-DihydroxytryptamineTetranitromethane5,6-DihydroxytryptamineReceptor, Serotonin, 5-HT1AMixed Function OxygenasesProcollagen-Proline DioxygenaseMonoamine OxidaseBiopterinNeuronsBrain StemBrainFluoxetineReceptors, SerotoninSerotonin Uptake InhibitorsKineticsKynurenineMolecular Sequence DataRats, Sprague-DawleySuicide