ENZYME - 1.14.16.4 tryptophan 5-monooxygenase (original) (raw)

Accepted Name
tryptophan 5-monooxygenase
Alternative Name(s)
indoleacetic acid-5-hydroxylase
L-tryptophan hydroxylase
tryptophan 5-hydroxylase
tryptophan hydroxylase
Reaction catalysed
(6R)-L-erythro-5,6,7,8-tetrahydrobiopterin + L-tryptophan + O2 = 5-hydroxy-L-tryptophan + (4aS,6R)-4a-hydroxy-L-erythro-5,6,7,8-tetrahydrobiopterin
Comment(s)
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.
Cross-references
BRENDA 1.14.16.4
EC2PDB 1.14.16.4
ExplorEnz 1.14.16.4
PRIAM enzyme-specific profiles 1.14.16.4
KEGG Ligand Database for Enzyme Nomenclature 1.14.16.4
IUBMB Enzyme Nomenclature 1.14.16.4
IntEnz 1.14.16.4
MEDLINE Find literature relating to 1.14.16.4
MetaCyc 1.14.16.4
Rhea expert-curated reactions 1.14.16.4
UniProtKB/Swiss-Prot P90925, PH4H_CAEELQ54XS1, PH4H_DICDIP17276, PH4H_DROME P70080, TPH1_CHICKP17752, TPH1_HUMANP17532, TPH1_MOUSE P17290, TPH1_RABITP09810, TPH1_RATQ92142, TPH1_XENLA Q0EAB8, TPH2_HORSEQ8IWU9, TPH2_HUMANQ2HZ26, TPH2_MACMU Q8CGV2, TPH2_MOUSEQ8CGU9, TPH2_RAT

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