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A biochemical messenger and regulator, synthesized from the essential amino acid L-TRYPTOPHAN. In humans it is found primarily in the central nervous system, gastrointestinal tract, and blood platelets. Serotonin mediates several important physiological functions including neurotransmission, gastrointestinal motility, hemostasis, and cardiovascular integrity. Multiple receptor families (RECEPTORS, SEROTONIN) explain the broad physiological actions and distribution of this biochemical mediator.

PubChem image 5202

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3BRN - Ligand Binding Protein
Crystal Structure Of Am182 Serotonin Complex
Ligand: SRO

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2QEH - Ligand Binding Protein
Crystal Structure Of Anopheles Gambiae D7r4-Serotonin Complex
Ligand: SRO