ID TYSY_SALTI Reviewed; 264 AA. AC Q8Z412; DT 02-MAY-2002, integrated into UniProtKB/Swiss-Prot. DT 01-MAR-2002, sequence version 1. DT 27-MAR-2024, entry version 131. DE RecName: Full=Thymidylate synthase {ECO:0000255|HAMAP-Rule:MF_00008}; DE Short=TS {ECO:0000255|HAMAP-Rule:MF_00008}; DE Short=TSase {ECO:0000255|HAMAP-Rule:MF_00008}; DE EC=2.1.1.45 {ECO:0000255|HAMAP-Rule:MF_00008}; GN Name=thyA {ECO:0000255|HAMAP-Rule:MF_00008}; GN OrderedLocusNames=STY3142, t2910; OS Salmonella typhi. OC Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales; OC Enterobacteriaceae; Salmonella. OX NCBI_TaxID=90370; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=CT18; RX PubMed=11677608; DOI=10.1038/35101607; RA Parkhill J., Dougan G., James K.D., Thomson N.R., Pickard D., Wain J., RA Churcher C.M., Mungall K.L., Bentley S.D., Holden M.T.G., Sebaihia M., RA Baker S., Basham D., Brooks K., Chillingworth T., Connerton P., Cronin A., RA Davis P., Davies R.M., Dowd L., White N., Farrar J., Feltwell T., RA Hamlin N., Haque A., Hien T.T., Holroyd S., Jagels K., Krogh A., RA Larsen T.S., Leather S., Moule S., O'Gaora P., Parry C., Quail M.A., RA Rutherford K.M., Simmonds M., Skelton J., Stevens K., Whitehead S., RA Barrell B.G.; RT "Complete genome sequence of a multiple drug resistant Salmonella enterica RT serovar Typhi CT18."; RL Nature 413:848-852(2001). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 700931 / Ty2; RX PubMed=12644504; DOI=10.1128/jb.185.7.2330-2337.2003; RA Deng W., Liou S.-R., Plunkett G. III, Mayhew G.F., Rose D.J., Burland V., RA Kodoyianni V., Schwartz D.C., Blattner F.R.; RT "Comparative genomics of Salmonella enterica serovar Typhi strains Ty2 and RT CT18."; RL J. Bacteriol. 185:2330-2337(2003). CC -!- FUNCTION: Catalyzes the reductive methylation of 2'-deoxyuridine-5'- CC monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while CC utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and CC reductant in the reaction, yielding dihydrofolate (DHF) as a by- CC product. This enzymatic reaction provides an intracellular de novo CC source of dTMP, an essential precursor for DNA biosynthesis. CC {ECO:0000255|HAMAP-Rule:MF_00008}. CC -!- CATALYTIC ACTIVITY: CC Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + dUMP = 7,8- CC dihydrofolate + dTMP; Xref=Rhea:RHEA:12104, ChEBI:CHEBI:15636, CC ChEBI:CHEBI:57451, ChEBI:CHEBI:63528, ChEBI:CHEBI:246422; CC EC=2.1.1.45; Evidence={ECO:0000255|HAMAP-Rule:MF_00008}; CC -!- PATHWAY: Pyrimidine metabolism; dTTP biosynthesis. {ECO:0000255|HAMAP- CC Rule:MF_00008}. CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00008}. CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00008}. CC -!- SIMILARITY: Belongs to the thymidylate synthase family. Bacterial-type CC ThyA subfamily. {ECO:0000255|HAMAP-Rule:MF_00008}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; AL513382; CAD02826.1; -; Genomic_DNA. DR EMBL; AE014613; AAO70464.1; -; Genomic_DNA. DR RefSeq; NP_457395.1; NC_003198.1. DR RefSeq; WP_000816222.1; NZ_WSUR01000055.1. DR AlphaFoldDB; Q8Z412; -. DR SMR; Q8Z412; -. DR STRING; 220341.gene:17587026; -. DR KEGG; stt:t2910; -. DR KEGG; sty:STY3142; -. DR PATRIC; fig|220341.7.peg.3197; -. DR eggNOG; COG0207; Bacteria. DR HOGENOM; CLU_021669_0_0_6; -. DR OMA; IVYELLW; -. DR OrthoDB; 9774633at2; -. DR UniPathway; UPA00575; -. DR Proteomes; UP000000541; Chromosome. DR Proteomes; UP000002670; Chromosome. DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell. DR GO; GO:0004799; F:thymidylate synthase activity; IEA:UniProtKB-UniRule. DR GO; GO:0006231; P:dTMP biosynthetic process; IEA:UniProtKB-UniRule. DR GO; GO:0006235; P:dTTP biosynthetic process; IEA:UniProtKB-UniPathway. DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW. DR CDD; cd00351; TS_Pyrimidine_HMase; 1. DR Gene3D; 3.30.572.10; Thymidylate synthase/dCMP hydroxymethylase domain; 1. DR HAMAP; MF_00008; Thymidy_synth_bact; 1. DR InterPro; IPR045097; Thymidate_synth/dCMP_Mease. DR InterPro; IPR023451; Thymidate_synth/dCMP_Mease_dom. DR InterPro; IPR036926; Thymidate_synth/dCMP_Mease_sf. DR InterPro; IPR000398; Thymidylate_synthase. DR InterPro; IPR020940; Thymidylate_synthase_AS. DR NCBIfam; TIGR03284; thym_sym; 2. DR PANTHER; PTHR11548:SF9; THYMIDYLATE SYNTHASE; 1. DR PANTHER; PTHR11548; THYMIDYLATE SYNTHASE 1; 1. DR Pfam; PF00303; Thymidylat_synt; 1. DR PRINTS; PR00108; THYMDSNTHASE. DR SUPFAM; SSF55831; Thymidylate synthase/dCMP hydroxymethylase; 1. DR PROSITE; PS00091; THYMIDYLATE_SYNTHASE; 1. PE 3: Inferred from homology; KW Cytoplasm; Methyltransferase; Nucleotide biosynthesis; Transferase. FT CHAIN 1..264 FT /note="Thymidylate synthase" FT /id="PRO_0000141013" FT ACT_SITE 146 FT /note="Nucleophile" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 21 FT /ligand="dUMP" FT /ligand_id="ChEBI:CHEBI:246422" FT /ligand_note="ligand shared between dimeric partners" FT /note="in other chain" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 51 FT /ligand="(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate" FT /ligand_id="ChEBI:CHEBI:15636" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 126..127 FT /ligand="dUMP" FT /ligand_id="ChEBI:CHEBI:246422" FT /ligand_note="ligand shared between dimeric partners" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 166..169 FT /ligand="dUMP" FT /ligand_id="ChEBI:CHEBI:246422" FT /ligand_note="ligand shared between dimeric partners" FT /note="in other chain" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 169 FT /ligand="(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate" FT /ligand_id="ChEBI:CHEBI:15636" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 177 FT /ligand="dUMP" FT /ligand_id="ChEBI:CHEBI:246422" FT /ligand_note="ligand shared between dimeric partners" FT /note="in other chain" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 207..209 FT /ligand="dUMP" FT /ligand_id="ChEBI:CHEBI:246422" FT /ligand_note="ligand shared between dimeric partners" FT /note="in other chain" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 263 FT /ligand="(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate" FT /ligand_id="ChEBI:CHEBI:15636" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" SQ SEQUENCE 264 AA; 30336 MW; EAF7A9FA96BAE83D CRC64; MKQYLELIQK VLDEGTQKND RTGTGTLSIF GHQMRFNLLE GFPLVTTKRC HLRSIIHELL WFLQGDTNIA YLHENNVTIW DEWADENGDL GPVYGKQWRA WPTPDGRHID QIATVLSQLK NDPDSRRIIV SAWNVGELDK MALAPCHAFF QFYVADGKLS CQLYQRSCDV FLGLPFNIAS YALLVHMMAQ QCDLDVGDFV WTGGDTHLYS NHMEQTHLQL SREPRALPKL VIKRKPDSLF DYRFDDFEIE GYDPHPGIKA PVAI //