CATH Classification

Domain Context

CATH Clusters

Superfamily Aldolase class I
Functional Family

Enzyme Information

1.3.98.1
Dihydroorotate oxidase (fumarate).
based on mapping to UniProt Q4D3W2
(S)-dihydroorotate + fumarate = orotate + succinate.
-!- The reaction, which takes place in the cytosol, is the only redox reaction in the de novo biosynthesis of pyrimidine nucleotides. -!- Molecular oxygen can replace fumarate in vitro. -!- Other class 1 dihydroorotate dehydrogenases use either NAD(+) (EC 1.3.1.14) or NADP(+) (EC 1.3.1.15) as electron acceptor. -!- The membrane bound class 2 dihydroorotate dehydrogenase (EC 1.3.5.2) uses quinone as electron acceptor. -!- Formerly EC 1.3.3.1.

UniProtKB Entries (1)

Q4D3W2
PYRD_TRYCC
Trypanosoma cruzi strain CL Brener
Dihydroorotate dehydrogenase (fumarate)

PDB Structure

PDB 3C3N
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Crystal structure of Trypanosoma cruzi dihydroorotate dehydrogenase from Y strain
Pinheiro, M.P., Iulek, J., Cristina Nonato, M.
Biochem.Biophys.Res.Commun.
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