ID TYSY_ALCBS Reviewed; 277 AA. AC Q0VM06; DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot. DT 05-SEP-2006, sequence version 1. DT 02-SEP-2026, entry version 105. 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=ABO_2344; OS Alcanivorax borkumensis (strain ATCC 700651 / DSM 11573 / NCIMB 13689 / OS SK2). OC Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria; OC Oceanospirillales; Alcanivoracaceae; Alcanivorax. OX NCBI_TaxID=393595; RN [1] RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA]. RC STRAIN=ATCC 700651 / DSM 11573 / NCIMB 13689 / SK2; RX PubMed=16878126; DOI=10.1038/nbt1232; RA Schneiker S., Martins dos Santos V.A.P., Bartels D., Bekel T., Brecht M., RA Buhrmester J., Chernikova T.N., Denaro R., Ferrer M., Gertler C., RA Goesmann A., Golyshina O.V., Kaminski F., Khachane A.N., Lang S., Linke B., RA McHardy A.C., Meyer F., Nechitaylo T., Puehler A., Regenhardt D., Rupp O., RA Sabirova J.S., Selbitschka W., Yakimov M.M., Timmis K.N., Vorhoelter F.-J., RA Weidner S., Kaiser O., Golyshin P.N.; RT "Genome sequence of the ubiquitous hydrocarbon-degrading marine bacterium RT Alcanivorax borkumensis."; RL Nat. Biotechnol. 24:997-1004(2006). 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=dUMP + (6R)-5,10-methylene-5,6,7,8-tetrahydrofolate = 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; AM286690; CAL17792.1; -; Genomic_DNA. DR RefSeq; WP_011589618.1; NC_008260.1. DR AlphaFoldDB; Q0VM06; -. DR SMR; Q0VM06; -. DR STRING; 393595.ABO_2344; -. DR KEGG; abo:ABO_2344; -. DR eggNOG; COG0207; Bacteria. DR HOGENOM; CLU_021669_0_0_6; -. DR OrthoDB; 9774633at2; -. DR UniPathway; UPA00575; -. DR Proteomes; UP000008871; Chromosome. DR GO; GO:0005829; C:cytosol; IEA:TreeGrafter. 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-UniRule. DR CDD; cd00351; TS_Pyrimidine_HMase; 1. DR FunFam; 3.30.572.10:FF:000013; Thymidylate synthase; 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 NCBIfam; NF002497; PRK01827.1-3; 1. DR NCBIfam; NF002499; PRK01827.1-5; 1. 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. PE 3: Inferred from homology; KW Cytoplasm; Methyltransferase; Nucleotide biosynthesis; Reference proteome; KW Transferase. FT CHAIN 1..277 FT /note="Thymidylate synthase" FT /id="PRO_1000000571" FT ACT_SITE 159 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 179..182 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 182 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 190 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 220..222 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 276 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 277 AA; 31049 MW; 7807D5D137C0D0A3 CRC64; MKQYLDLLRH VREHGTYKED RTGTGTYAVF GYQMRYDLSQ GFPMLTTKKL HLRSIIHELL WFLSGDTNIR YLKENGVSIW DGWATPEGEL GPVYGEQWRS WKTADGGVID QITEVLKEIK RNPDSRRLVV SAWNPAVLPD PSISPDANAA AGKQALPPCH CLFQFYVADG KLSCQLYQRS GDIFLGVPFN IASYALLTLM MAQVCDLQPG DFVHTLGDAH LYSNHLEQAD TQLARTPGPL PTMTLNPAVK DLFAFTFDDF TVSNYNPDAH IKAPVAI //