TYSY_MYCPU
ID TYSY_MYCPU Reviewed; 286 AA.
AC Q98Q31;
DT 15-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2001, sequence version 1.
DT 03-AUG-2022, entry version 109.
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=MYPU_5380;
OS Mycoplasmopsis pulmonis (strain UAB CTIP) (Mycoplasma pulmonis).
OC Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasmopsis.
OX NCBI_TaxID=272635;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UAB CTIP;
RX PubMed=11353084; DOI=10.1093/nar/29.10.2145;
RA Chambaud I., Heilig R., Ferris S., Barbe V., Samson D., Galisson F.,
RA Moszer I., Dybvig K., Wroblewski H., Viari A., Rocha E.P.C., Blanchard A.;
RT "The complete genome sequence of the murine respiratory pathogen Mycoplasma
RT pulmonis.";
RL Nucleic Acids Res. 29:2145-2153(2001).
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; AL445565; CAC13711.1; -; Genomic_DNA.
DR PIR; B90579; B90579.
DR RefSeq; WP_010925339.1; NC_002771.1.
DR AlphaFoldDB; Q98Q31; -.
DR SMR; Q98Q31; -.
DR STRING; 272635.MYPU_5380; -.
DR EnsemblBacteria; CAC13711; CAC13711; CAC13711.
DR KEGG; mpu:MYPU_5380; -.
DR eggNOG; COG0207; Bacteria.
DR HOGENOM; CLU_021669_0_0_14; -.
DR OMA; KQYLDLC; -.
DR OrthoDB; 1212177at2; -.
DR BioCyc; MPUL272635:G1GT6-546-MON; -.
DR UniPathway; UPA00575; -.
DR Proteomes; UP000000528; 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; -; 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..286
FT /note="Thymidylate synthase"
FT /id="PRO_0000140988"
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 285
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 286 AA; 33458 MW; 32DC5DE241B765A4 CRC64;
MKQYLDFLKW VLEKGKHKEN RTSVDTISAF GYQMRFDLSK GFPLVTTKKT NFSAIAHELL
WFIKGDTNIK YLVDNKVNIW NQWPYESYKK SQDFQSESLK EFIQKIKDDN EFAQKHGNLG
PVYGKQWRDF LGIDQLKKVI EQIKNNPNSR RLIVSSWNPS EIDTMLLPPC HTLFQFYVND
NKLSCHLYQR SADAFLGIPF NIASYALLTF LLAQETNLEV GDFVHSIGDA HIYVNHLEQV
KTQLKRNPKE LPKLIIKNKN IFEINFEDIE LVDYEFDPII KGEVAV
