ID TYSY_MYCBO Reviewed; 266 AA. AC P67045; A0A1R3Y263; O33306; X2BLW1; DT 11-OCT-2004, integrated into UniProtKB/Swiss-Prot. DT 25-MAY-2022, sequence version 2. DT 24-JAN-2024, entry version 102. 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=BQ2027_MB2786C; OS Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97). OC Bacteria; Actinomycetota; Actinomycetes; Mycobacteriales; Mycobacteriaceae; OC Mycobacterium; Mycobacterium tuberculosis complex. OX NCBI_TaxID=233413; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC BAA-935 / AF2122/97; RX PubMed=12788972; DOI=10.1073/pnas.1130426100; RA Garnier T., Eiglmeier K., Camus J.-C., Medina N., Mansoor H., Pryor M., RA Duthoy S., Grondin S., Lacroix C., Monsempe C., Simon S., Harris B., RA Atkin R., Doggett J., Mayes R., Keating L., Wheeler P.R., Parkhill J., RA Barrell B.G., Cole S.T., Gordon S.V., Hewinson R.G.; RT "The complete genome sequence of Mycobacterium bovis."; RL Proc. Natl. Acad. Sci. U.S.A. 100:7877-7882(2003). RN [2] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA], AND GENOME REANNOTATION. RC STRAIN=ATCC BAA-935 / AF2122/97; RX PubMed=28385856; DOI=10.1128/genomea.00157-17; RA Malone K.M., Farrell D., Stuber T.P., Schubert O.T., Aebersold R., RA Robbe-Austerman S., Gordon S.V.; RT "Updated reference genome sequence and annotation of Mycobacterium bovis RT AF2122/97."; RL Genome Announc. 5:E00157-E00157(2017). 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 -!- SEQUENCE CAUTION: CC Sequence=SIU01404.1; Type=Erroneous initiation; Note=Truncated N-terminus.; Evidence={ECO:0000250|UniProtKB:P9WFR9}; 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; LT708304; SIU01404.1; ALT_INIT; Genomic_DNA. DR RefSeq; NP_856432.1; NC_002945.3. DR RefSeq; WP_003911953.1; NC_002945.4. DR AlphaFoldDB; P67045; -. DR SMR; P67045; -. DR GeneID; 45426752; -. DR PATRIC; fig|233413.5.peg.3053; -. DR UniPathway; UPA00575; -. DR Proteomes; UP000001419; 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; Reference proteome; KW Transferase. FT CHAIN 1..266 FT /note="Thymidylate synthase" FT /id="PRO_0000140991" FT ACT_SITE 149 FT /note="Nucleophile" FT /evidence="ECO:0000255|HAMAP-Rule:MF_00008" FT BINDING 24 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 54 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 129..130 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 169..172 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 172 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 180 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 210..212 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 265 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 266 AA; 30152 MW; 5D6DA596F096B88B CRC64; MSIVTPYEDL LRFVLETGTP KSDRTGTGTR SLFGQQMRYD LSAGFPLLTT KKVHFKSVAY ELLWFLRGDS NIGWLHEHGV TIWDEWASDT GELGPIYGVQ WRSWPAPSGE HIDQISAALD LLRTDPDSRR IIVSAWNVGE IERMALPPCH AFFQFYVADG RLSCQLYQRS ADLFLGVPFN IASYALLTHM MAAQAGLSVG EFIWTGGDCH IYDNHVEQVR LQLSREPRPY PKLLLADRDS IFEYTYEDIV VKNYDPHPAI KAPVAV //