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Information on EC 1.1.1.325 - sepiapterin reductase (L-threo-7,8-dihydrobiopterin forming)

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IUBMB Comments
This enzyme, isolated from the bacterium Chlorobium tepidum, catalyses the final step in the de novo synthesis of tetrahydrobiopterin from GTP. cf. EC 1.1.1.153, sepiapterin reductase (L-erythro-7,8-dihydrobiopterin forming).
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The expected taxonomic range for this enzyme is: Bacteria, Archaea, Eukaryota
Synonyms
MDSPR, sepiapterin reductase, SPR, more
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
L-threo-7,8-dihydrobiopterin + NADP+ = sepiapterin + NADPH + H+
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(1)
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L-threo-tetrahydrobiopterin + 2 NADP+ = 6-pyruvoyl-5,6,7,8-tetrahydropterin + 2 NADPH + 2 H+
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(2)
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PATHWAY SOURCE
PATHWAYS
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