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TYSY_MYCGE
ID   TYSY_MYCGE              Reviewed;         287 AA.
AC   P47469;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 128.
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}; OrderedLocusNames=MG227;
OS   Mycoplasma genitalium (strain ATCC 33530 / DSM 19775 / NCTC 10195 / G37)
OS   (Mycoplasmoides genitalium).
OC   Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasma.
OX   NCBI_TaxID=243273;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33530 / DSM 19775 / NCTC 10195 / G37;
RX   PubMed=7569993; DOI=10.1126/science.270.5235.397;
RA   Fraser C.M., Gocayne J.D., White O., Adams M.D., Clayton R.A.,
RA   Fleischmann R.D., Bult C.J., Kerlavage A.R., Sutton G.G., Kelley J.M.,
RA   Fritchman J.L., Weidman J.F., Small K.V., Sandusky M., Fuhrmann J.L.,
RA   Nguyen D.T., Utterback T.R., Saudek D.M., Phillips C.A., Merrick J.M.,
RA   Tomb J.-F., Dougherty B.A., Bott K.F., Hu P.-C., Lucier T.S.,
RA   Peterson S.N., Smith H.O., Hutchison C.A. III, Venter J.C.;
RT   "The minimal gene complement of Mycoplasma genitalium.";
RL   Science 270:397-403(1995).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 193-287.
RC   STRAIN=ATCC 33530 / DSM 19775 / NCTC 10195 / G37;
RX   PubMed=8253680; DOI=10.1128/jb.175.24.7918-7930.1993;
RA   Peterson S.N., Hu P.-C., Bott K.F., Hutchison C.A. III;
RT   "A survey of the Mycoplasma genitalium genome by using random sequencing.";
RL   J. Bacteriol. 175:7918-7930(1993).
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; L43967; AAC71448.1; -; Genomic_DNA.
DR   EMBL; U01718; AAC43192.1; -; Unassigned_DNA.
DR   PIR; A64225; A64225.
DR   RefSeq; WP_010869385.1; NC_000908.2.
DR   AlphaFoldDB; P47469; -.
DR   SMR; P47469; -.
DR   STRING; 243273.MG_227; -.
DR   EnsemblBacteria; AAC71448; AAC71448; MG_227.
DR   KEGG; mge:MG_227; -.
DR   eggNOG; COG0207; Bacteria.
DR   HOGENOM; CLU_021669_0_0_14; -.
DR   OMA; KQYLDLC; -.
DR   OrthoDB; 1212177at2; -.
DR   BioCyc; MGEN243273:G1GJ2-274-MON; -.
DR   UniPathway; UPA00575; -.
DR   Proteomes; UP000000807; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR   GO; GO:0004799; F:thymidylate synthase activity; IBA:GO_Central.
DR   GO; GO:0006231; P:dTMP biosynthetic process; IBA:GO_Central.
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; -; 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   PANTHER; PTHR11548; PTHR11548; 1.
DR   Pfam; PF00303; Thymidylat_synt; 1.
DR   PRINTS; PR00108; THYMDSNTHASE.
DR   SUPFAM; SSF55831; SSF55831; 1.
DR   TIGRFAMs; TIGR03284; thym_sym; 1.
DR   PROSITE; PS00091; THYMIDYLATE_SYNTHASE; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methyltransferase; Nucleotide biosynthesis; Reference proteome;
KW   Transferase.
FT   CHAIN           1..287
FT                   /note="Thymidylate synthase"
FT                   /id="PRO_0000140983"
FT   ACT_SITE        170
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         150..151
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         190..193
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         193
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         201
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         231..233
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         286
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   287 AA;  33470 MW;  6BA68678A9E502D8 CRC64;
     MKQYLDLASY VLANGKKRKN RTDTDTLSVF GYQMKFDLTN SFPLLTTKKV NWKAIVHELL
     WFIKGDTNIK YLVDNGVNIW NEWPYENFKK SPSFQNETLQ EFILKVKTDN EFAKQFADLG
     PVYGKQWRNF NGVDQLKKVI QEIKENPNSR RLIVSSWNPS ELEKMALAPC HSLFQFYVEE
     DKLSLQLYQR SGDIFLGVPF NIASYALLVY LVAHETKLKP GYFIHTLGDA HIYENHIEQI
     KLQLTRTTLD PPQVVLKSDK SIFAYSFDDI ELVGYNYHPF IYGRVAV
 
 
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