ID TYSY_BACCN Reviewed; 318 AA. AC A7GP90; DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot. DT 11-SEP-2007, sequence version 1. DT 27-MAR-2024, entry version 94. 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=Bcer98_1639; OS Bacillus cytotoxicus (strain DSM 22905 / CIP 110041 / 391-98 / NVH 391-98). OC Bacteria; Bacillota; Bacilli; Bacillales; Bacillaceae; Bacillus; OC Bacillus cereus group. OX NCBI_TaxID=315749; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=DSM 22905 / CIP 110041 / 391-98 / NVH 391-98; RX PubMed=17434157; DOI=10.1016/j.cbi.2007.03.003; RA Lapidus A., Goltsman E., Auger S., Galleron N., Segurens B., Dossat C., RA Land M.L., Broussolle V., Brillard J., Guinebretiere M.-H., Sanchis V., RA Nguen-the C., Lereclus D., Richardson P., Wincker P., Weissenbach J., RA Ehrlich S.D., Sorokin A.; RT "Extending the Bacillus cereus group genomics to putative food-borne RT pathogens of different toxicity."; RL Chem. Biol. Interact. 171:236-249(2008). 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; CP000764; ABS21948.1; -; Genomic_DNA. DR RefSeq; WP_012094124.1; NC_009674.1. DR AlphaFoldDB; A7GP90; -. DR SMR; A7GP90; -. DR STRING; 315749.Bcer98_1639; -. DR GeneID; 56417216; -. DR KEGG; bcy:Bcer98_1639; -. DR eggNOG; COG0207; Bacteria. DR HOGENOM; CLU_021669_0_2_9; -. DR OrthoDB; 9774633at2; -. DR UniPathway; UPA00575; -. DR Proteomes; UP000002300; 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; 1. 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..318 FT /note="Thymidylate synthase" FT /id="PRO_1000073867" FT ACT_SITE 200 FT /note="Nucleophile" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 25 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 180..181 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 220..223 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 223 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 231 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 261..263 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 317 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 318 AA; 36810 MW; CD855B461136241F CRC64; MKHAEYEYLN LCRHVMEHGT KKEDRTGTGT VSVFGYQMRF DLSKGFPLLT TKRVPFRLVA SELLWFMKGD TNIRYLLQHN NNIWNEWAFK NWVESDEYKG PDMTNFGLRS QEDEAFKTQY DEQMEIFKKN VLEDDEFARK YGYLGDVYGK QWRAWKTAAG ETIDQLKDVI EMIKKTPDSR RLIVSAWNPE DVPNMALPPC HTLFQFYVAD GKLSCQLYQR SGDIFLGIPF NIASYSLLTH LIAHECGLAV GEFVHTIGDA HIYTNHFEQV KKQLAREPRP FPTLKLNSDV KSVFDFEMGD LTIEGYDPHP AIKAPVAV //