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ENZYME entry: EC 188.8.131.52
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|L-tryptophan + tetrahydrobiopterin + O(2) <=> 5-hydroxy-L-tryptophan + 4a-hydroxytetrahydrobiopterin|
- Activated by phosphorylation, catalyzed by a Ca(2+)-activated protein
- The 4a-hydroxytetrahydrobiopterin formed can dehydrate to 6,7-
dihydrobiopterin, both spontaneously and by the action of
- The 6,7-dihydrobiopterin can be enzymically reduced back to
tetrahydrobiopterin, by EC 184.108.40.206, or slowly rearranges into the
more stable compound 7,8-dihydrobiopterin.
|PRIAM enzyme-specific profiles||220.127.116.11|
|KEGG Ligand Database for Enzyme Nomenclature||18.104.22.168|
|IUBMB Enzyme Nomenclature||22.214.171.124|
|MEDLINE||Find literature relating to 126.96.36.199|
|Q54XS1, PH4H_DICDI; ||P17276, PH4H_DROME; ||P70080, TPH1_CHICK; |
|P17752, TPH1_HUMAN; ||P17532, TPH1_MOUSE; ||P17290, TPH1_RABIT; |
|P09810, TPH1_RAT; ||Q0EAB8, TPH2_HORSE; ||Q8IWU9, TPH2_HUMAN; |
|Q2HZ26, TPH2_MACMU; ||Q8CGV2, TPH2_MOUSE; ||Q8CGU9, TPH2_RAT; |
|Q92142, TPH_XENLA; |
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