OnCo

Tryptophan hydroxylase 1

Short target page →

Tryptophan hydroxylase makes serotonin, the hormone that neuroendocrine tumours pour out in carcinoid syndrome; telotristat ethyl blocks the enzyme to cut the diarrhoea that somatostatin analogues leave uncontrolled. This dossier gathers the 0 products (0 approved), 0 trials, 0 pathways and 0 resistance routes in the corpus that involve it, with external identifiers so it can be joined to UniProt, ChEMBL, Open Targets and the rest of biology.

Biology

A cytosolic aromatic amino-acid hydroxylase requiring tetrahydrobiopterin and iron; converts tryptophan to 5-hydroxytryptophan, which is then decarboxylated to serotonin.

Where it is found
  • Enterochromaffin cells of the gut and pineal gland
  • Serotonin-secreting neuroendocrine tumours
Class: enzyme · Gene: TPH1 · Facts checked 2026-09-04 · Target page

External identifiers

Built from HGNC, Ensembl, UniProt and ChEMBL ids

Products by modality and phase

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Resistance routes

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Companion diagnostics

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Preclinical models

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Literature

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Query for this target: (TITLE:"Tryptophan hydroxylase 1" OR ABSTRACT:"Tryptophan hydroxylase 1" OR TITLE:"TPH1" OR ABSTRACT:"TPH1") AND (cancer OR tumor OR tumour OR oncology OR carcinoma OR lymphoma OR leukemia OR leukaemia OR myeloma OR sarcoma OR melanoma OR glioma). Results are unfiltered search hits about Tryptophan hydroxylase 1, not a curated reading list.

Export

The dossier as machine-readable JSON: identifiers from HGNC, Ensembl, UniProt and ChEMBL, products with status, trials, pathways, hotspots, open questions and assays. The full entity record is in the open API at /api/v1/entities/tph1.json. Licence CC BY-NC 4.0.