CATH Classification

Domain Context

CATH Clusters

Superfamily Cytidine Deaminase, domain 2
Functional Family Riboflavin biosynthesis protein RibD

Enzyme Information

1.1.1.193
5-amino-6-(5-phosphoribosylamino)uracil reductase.
based on mapping to UniProt Q3ZUB0
5-amino-6-(5-phospho-D-ribitylamino)uracil + NADP(+) = 5-amino-6- (5-phospho-D-ribosylamino)uracil + NADPH.
3.5.4.26
Diaminohydroxyphosphoribosylaminopyrimidine deaminase.
based on mapping to UniProt Q3ZUB0
2,5-diamino-6-hydroxy-4-(5-phosphoribosylamino)pyrimidine + H(2)O = 5-amino-6-(5-phosphoribosylamino)uracil + NH(3).
-!- The substrate is the product of EC 3.5.4.25.

UniProtKB Entries (1)

Q3ZUB0
Q3ZUB0_ECOLX
Escherichia coli
Riboflavin biosynthesis protein RibD

PDB Structure

PDB 2G6V
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
The Crystal Structure of the Bifunctional Deaminase/Reductase RibD of the Riboflavin Biosynthetic Pathway in Escherichia coli: Implications for the Reductive Mechanism.
Stenmark, P., Moche, M., Gurmu, D., Nordlund, P.
J.Mol.Biol.