ID   TYSY_OENOB              Reviewed;         319 AA.
AC   Q04FR4;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, 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=OEOE_0782;
OS   Oenococcus oeni (strain ATCC BAA-331 / PSU-1).
OC   Bacteria; Bacillota; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Oenococcus.
OX   NCBI_TaxID=203123;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-331 / PSU-1;
RX   PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA   Makarova K.S., Slesarev A., Wolf Y.I., Sorokin A., Mirkin B., Koonin E.V.,
RA   Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA   Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA   Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA   Baldwin K., Lee J.-H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA   Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA   Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J.R., Hutkins R.,
RA   O'Sullivan D., Steele J., Unlu G., Saier M.H. Jr., Klaenhammer T.,
RA   Richardson P., Kozyavkin S., Weimer B.C., Mills D.A.;
RT   "Comparative genomics of the lactic acid bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(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=(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}.
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DR   EMBL; CP000411; ABJ56708.1; -; Genomic_DNA.
DR   RefSeq; WP_002818663.1; NC_008528.1.
DR   AlphaFoldDB; Q04FR4; -.
DR   SMR; Q04FR4; -.
DR   STRING; 203123.OEOE_0782; -.
DR   GeneID; 75066143; -.
DR   KEGG; ooe:OEOE_0782; -.
DR   eggNOG; COG0207; Bacteria.
DR   HOGENOM; CLU_021669_0_0_9; -.
DR   UniPathway; UPA00575; -.
DR   Proteomes; UP000000774; 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   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.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Nucleotide biosynthesis; Reference proteome;
KW   Transferase.
FT   CHAIN           1..319
FT                   /note="Thymidylate synthase"
FT                   /id="PRO_1000000645"
FT   ACT_SITE        201
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         181..182
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         221..224
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         224
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         232
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         262..264
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         318
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   319 AA;  36992 MW;  39B048FABA5F019A CRC64;
     MSRNEEQYLN LARRILETGA SKMDRTKTGT HSIFGAQMRF DLSEGFPLLT SKKVAFGRIK
     SELLWFLRGD NNIRFLLQHH NHIWDEWPFK KWVESNEYKG PDMTDFGLRT QKDPIFAEQY
     KEQKKIFVDR ILNDDEFSKK FGTIGDVYGK LWRHWPDAND DGSVDQITRL INEIKVNPNS
     RRLILTAWDP ETTPFATLPS CHVMSQFYVV DGKISLQMYQ RSADYFLGVP FNIASYSLLL
     SMVAAQTGLE VGEFIHTIGD AHIYNNHVDQ IKEQLSKPTH KLPTLKLNPD VKSIFDYEMS
     DIKLENYIHE DVIKAPIAV
//