CATH Classification

Domain Context

CATH Clusters

Superfamily 6-pyruvoyl tetrahydropterin synthase/QueD
Functional Family 6-carboxy-5,6,7,8-tetrahydropterin synthase

Enzyme Information

4.1.2.50
6-carboxytetrahydropterin synthase.
based on mapping to UniProt P65870
7,8-dihydroneopterin 3'-triphosphate + H(2)O = 6-carboxy-5,6,7,8- tetrahydropterin + acetaldehyde + triphosphate.
-!- Isolated from the bacteria Bacillus subtilis and Escherichia coli. -!- The reaction is part of the biosynthesis pathway of queuosine. -!- The enzyme from Escherichia coli can also convert 6-pyruvoyl-5,6,7,8- tetrahydropterin and sepiapterin to 6-carboxy-5,6,7,8- tetrahydropterin.

UniProtKB Entries (1)

P65870
QUED_ECOLI
Escherichia coli K-12
6-carboxy-5,6,7,8-tetrahydropterin synthase

PDB Structure

PDB 3QN9
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural basis of a novel activity of bacterial 6-pyruvoyltetrahydropterin synthase homologues distinct from mammalian 6-pyruvoyltetrahydropterin synthase activity.
Seo, K.H., Zhuang, N., Park, Y.S., Park, K.H., Lee, K.H.
Acta Crystallogr.,Sect.D
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