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CATH Classification

Domain Context

CATH Clusters

Superfamily DHBP synthase
Functional Family 3,4-dihydroxy-2-butanone 4-phosphate synthase

Enzyme Information

4.1.99.12
3,4-dihydroxy-2-butanone-4-phosphate synthase.
based on mapping to UniProt Q9KKP2
D-ribulose 5-phosphate = formate + L-3,4-dihydroxybutan-2-one 4-phosphate.
-!- The reaction involves an intramolecular skeletal rearrangement, with the bonds in D-ribulose 5-phosphate that connect C-3 and C-5 to C-4 being broken, C-4 being removed as formate and reconnection of C-3 and C-5. -!- The phosphorylated four-carbon product (L-3,4-dihydroxybutan-2-one 4-phosphate) is an intermediate in the biosynthesis of riboflavin.

UniProtKB Entries (1)

Q9KKP2
RIBB_VIBCH
Vibrio cholerae O1 biovar El Tor str. N16961
3,4-dihydroxy-2-butanone 4-phosphate synthase

PDB Structure

PDB 4P6D
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Structural Basis for Competitive Inhibition of 3,4-Dihydroxy-2-butanone-4-phosphate Synthase from Vibrio cholerae.
Islam, Z., Kumar, A., Singh, S., Salmon, L., Karthikeyan, S.
J.Biol.Chem.
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