CATH Domain 2af6H02

CATH Classification

Level	CATH Code	Description
	6	Special
	6.10	Helix non-globular
	6.10.140	Helix Hairpins
	6.10.140.450

Domain Context

CATH Clusters

Superfamily	6.10.140.450
Functional Family

Enzyme Information

2.1.1.148

Thymidylate synthase (FAD).

based on mapping to UniProt P9WG57

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)

P9WG57

THYX_MYCTU

Mycobacterium tuberculosis H37Rv

Flavin-dependent thymidylate synthase

PDB Structure

PDB	2AF6
External Links	PDBSum Proteopedia
Method	X-RAY DIFFRACTION
Organism	Escherichia
Primary Citation	Structure of the Mycobacterium tuberculosis Flavin Dependent Thymidylate Synthase (MtbThyX) at 2.0A Resolution. Sampathkumar, P., Turley, S., Ulmer, J.E., Rhie, H.G., Sibley, C.H., Hol, W.G. J.Mol.Biol.