TPH1 an enzyme that is rate-limiting in the biosynthesis of serotonin. It catalyzes the biopterin dependent monooxygenation of tryptophan to 5-hydroxytryptophan (5HT), which is subsequently decarboxylated to form the neurotransmitter serotonin. Its expression is limited to a few specialized tissues: raphe neurons, pinealocytes, mast cells, mononuclear leukocytes, beta-cells of the islets of Langerhans, and intestinal and pancreatic enterochromaffin cells. Two alternatively spliced isoforms have been described. Note: This description may include information from UniProtKB.
Protein type: Amino Acid Metabolism - tryptophan; EC; Oxidoreductase
Chromosomal Location of Human Ortholog: 11p15.1
Cellular Component:  cytosol
Molecular Function:  iron ion binding
Biological Process:  aromatic amino acid family metabolic process; bone remodeling; circadian rhythm; indolalkylamine biosynthetic process; mammary gland alveolus development; negative regulation of ossification; oxidation-reduction process; positive regulation of fat cell differentiation; response to immobilization stress; serotonin biosynthetic process
Reference #:  P17752 (UniProtKB)
Alt. Names/Synonyms: indoleacetic acid-5-hydroxylase; L-tryptophan hydroxylase; MGC119994; TPH; TPH1; TPRH; TRPH; Tryptophan 5-hydroxylase 1; Tryptophan 5-monooxygenase 1; tryptophan hydroxylase (tryptophan 5-monooxygenase); tryptophan hydroxylase 1
Gene Symbols: TPH1
Molecular weight: 50,985 Da
Basal Isoelectric point: 6.77  Predict pI for various phosphorylation states
Protein-Specific Antibodies or siRNAs from Cell Signaling Technology® Total Proteins
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Protein Structure Not Found.

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