CATH Classification

Domain Context

CATH Clusters

Superfamily 3.30.70.3180
Functional Family

Enzyme Information

2.1.1.148
Thymidylate synthase (FAD).
based on mapping to UniProt P40111
5,10-methylenetetrahydrofolate + dUMP + NADPH = dTMP + tetrahydrofolate + NADP(+).
-!- Contains FAD. -!- All thymidylate synthases catalyze a reductive methylation involving the transfer of the methylene group of 5,10-methylenetetrahydrofolate to the C5-position of dUMP and a two electron reduction of the methylene group to a methyl group. -!- Unlike the classical thymidylate synthase, ThyA (EC 2.1.1.45), which uses folate as both a 1-carbon donor and a source of reducing equivalents, this enzyme uses a flavin coenzyme as a source of reducing equivalents, which are derived from NADPH.

UniProtKB Entries (1)

P40111
THYX_CORGL
Corynebacterium glutamicum ATCC 13032
Flavin-dependent thymidylate synthase

PDB Structure

PDB 3FNN
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Biochemical and structural analysis of an atypical ThyX: Corynebacterium glutamicum NCHU 87078 depends on ThyA for thymidine biosynthesis
Wang, W.-C., Liu, J.-S., Chang, C.-M.
To be published