CATH Classification

Domain Context

CATH Clusters

Superfamily Aromatic amino acid hydroxylase
Functional Family tryptophan 5-hydroxylase 1

Enzyme Information

1.14.16.4
Tryptophan 5-monooxygenase.
based on mapping to UniProt P17752
L-tryptophan + tetrahydrobiopterin + O(2) = 5-hydroxy-L-tryptophan + 4a-hydroxytetrahydrobiopterin.
-!- Activated by phosphorylation, catalyzed by a Ca(2+)-activated protein kinase. -!- The 4a-hydroxytetrahydrobiopterin formed can dehydrate to 6,7- dihydrobiopterin, both spontaneously and by the action of EC 4.2.1.96. -!- The 6,7-dihydrobiopterin can be enzymically reduced back to tetrahydrobiopterin, by EC 1.5.1.34, or slowly rearranges into the more stable compound 7,8-dihydrobiopterin.

UniProtKB Entries (1)

P17752
TPH1_HUMAN
Homo sapiens
Tryptophan 5-hydroxylase 1

PDB Structure

PDB 3HFB
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Mechanism of Inhibition of Novel Tryptophan Hydroxylase Inhibitors Revealed by Co-crystal Structures and Kinetic Analysis.
Cianchetta, G., Stouch, T., Yu, W., Shi, Z.C., Tari, L.W., Swanson, R.V., Hunter, M.J., Hoffman, I.D., Liu, Q.
Curr Chem Genomics