TYSY_MYCPN
ID TYSY_MYCPN Reviewed; 287 AA.
AC P78029; Q50354;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1997, sequence version 2.
DT 03-AUG-2022, entry version 120.
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=MPN_320;
GN ORFNames=MP516;
OS Mycoplasma pneumoniae (strain ATCC 29342 / M129) (Mycoplasmoides
OS pneumoniae).
OC Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasma.
OX NCBI_TaxID=272634;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29342 / M129;
RX PubMed=8948633; DOI=10.1093/nar/24.22.4420;
RA Himmelreich R., Hilbert H., Plagens H., Pirkl E., Li B.-C., Herrmann R.;
RT "Complete sequence analysis of the genome of the bacterium Mycoplasma
RT pneumoniae.";
RL Nucleic Acids Res. 24:4420-4449(1996).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA] OF 163-212.
RC STRAIN=ATCC 29342 / M129;
RX PubMed=7984111; DOI=10.1111/j.1365-2958.1994.tb00427.x;
RA Proft T., Herrmann R.;
RT "Identification and characterization of hitherto unknown Mycoplasma
RT pneumoniae proteins.";
RL Mol. Microbiol. 13:337-348(1994).
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=AAB96164.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; U00089; AAB96164.1; ALT_INIT; Genomic_DNA.
DR EMBL; Z32654; CAA83575.1; -; Genomic_DNA.
DR PIR; S73842; S73842.
DR RefSeq; NP_110008.2; NC_000912.1.
DR RefSeq; WP_010874676.1; NC_000912.1.
DR AlphaFoldDB; P78029; -.
DR SMR; P78029; -.
DR IntAct; P78029; 3.
DR STRING; 272634.MPN_320; -.
DR EnsemblBacteria; AAB96164; AAB96164; MPN_320.
DR GeneID; 66609024; -.
DR KEGG; mpn:MPN_320; -.
DR PATRIC; fig|272634.6.peg.344; -.
DR HOGENOM; CLU_021669_0_2_14; -.
DR OMA; KQYLDLC; -.
DR BioCyc; MPNE272634:G1GJ3-511-MON; -.
DR UniPathway; UPA00575; -.
DR Proteomes; UP000000808; 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..287
FT /note="Thymidylate synthase"
FT /id="PRO_0000140987"
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"
FT CONFLICT 204..212
FT /note="SYSLLVYLV -> FLLSYGA (in Ref. 2)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 287 AA; 33591 MW; DAD2E84FCD9C5EDE CRC64;
MQQYLDLARY VLEHGKYRPN RTDTAGIGVF GYQMHFDISK HFPLLTTKKV HWKSIVHELL
WFIKGDTNIK YLVDNKVNIW NEWPYESFKK SPHFNGESQK EFIERIRQDA KFAQQFGNLG
PVYGKQWRDF NGVDQLKKVI AQIKVNPFSR RLIVSSWNPN EVDQMLLPPC HSLYQFYVQD
GQLSCQLYQR SGDIFLGIPF NIASYSLLVY LVAKETNLKP GSFVHTIGDA HIYENHLEQI
KLQLTRQPKP LPKVVLKSDK SIFDYQFDDI ELVDYDHHPT IKGEVAV
