UniProt functional annotation for P0CI79

UniProt code: P0CI79.

Organism: Bacillus subtilis (strain 168).
Taxonomy: Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus.
 
Function: Catalyzes the reductive methylation of 2'-deoxyuridine-5'- monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and reductant in the reaction, yielding dihydrofolate (DHF) as a by- product. This enzymatic reaction provides an intracellular de novo source of dTMP, an essential precursor for DNA biosynthesis. {ECO:0000255|HAMAP-Rule:MF_00008}.
 
Catalytic activity: Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + dUMP = 7,8- dihydrofolate + dTMP; Xref=Rhea:RHEA:12104, ChEBI:CHEBI:15636, ChEBI:CHEBI:57451, ChEBI:CHEBI:63528, ChEBI:CHEBI:246422; EC=2.1.1.45; Evidence={ECO:0000255|HAMAP-Rule:MF_00008};
Biophysicochemical properties: Temperature dependence: Thermostable. Active at 46 degrees Celsius.;
Pathway: Pyrimidine metabolism; dTTP biosynthesis. {ECO:0000255|HAMAP- Rule:MF_00008}.
Subunit: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00008}.
Subcellular location: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00008}.
Miscellaneous: B.subtilis strain 168 possesses two thymidylate synthases, a major form ThyA and a minor form ThyB.
Similarity: Belongs to the thymidylate synthase family. Bacterial-type ThyA subfamily. {ECO:0000255|HAMAP-Rule:MF_00008}.

Annotations taken from UniProtKB at the EBI.