ID A0A0X8FK01_9LACT Unreviewed; 317 AA.
AC A0A0X8FK01;
DT 13-APR-2016, integrated into UniProtKB/TrEMBL.
DT 13-APR-2016, sequence version 1.
DT 27-MAR-2024, entry version 34.
DE RecName: Full=Thymidylate synthase {ECO:0000256|ARBA:ARBA00011947, ECO:0000256|HAMAP-Rule:MF_00008};
DE Short=TS {ECO:0000256|HAMAP-Rule:MF_00008};
DE Short=TSase {ECO:0000256|HAMAP-Rule:MF_00008};
DE EC=2.1.1.45 {ECO:0000256|ARBA:ARBA00011947, ECO:0000256|HAMAP-Rule:MF_00008};
GN Name=thyA {ECO:0000256|HAMAP-Rule:MF_00008};
GN ORFNames=AWM75_01235 {ECO:0000313|EMBL:AMB98700.1},
GN SAMN04487985_103107 {ECO:0000313|EMBL:SDL99167.1};
OS Aerococcus urinaehominis.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Aerococcaceae; Aerococcus.
OX NCBI_TaxID=128944 {ECO:0000313|EMBL:AMB98700.1, ECO:0000313|Proteomes:UP000062260};
RN [1] {ECO:0000313|EMBL:AMB98700.1, ECO:0000313|Proteomes:UP000062260}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCUG42038B {ECO:0000313|EMBL:AMB98700.1,
RC ECO:0000313|Proteomes:UP000062260};
RX PubMed=27103727;
RA Carkaci D., Dargis R., Nielsen X.C., Skovgaard O., Fuursted K.,
RA Christensen J.J.;
RT "Complete Genome Sequences of Aerococcus christensenii CCUG 28831T,
RT Aerococcus sanguinicola CCUG 43001T, Aerococcus urinae CCUG 36881T,
RT Aerococcus urinaeequi CCUG 28094T, Aerococcus urinaehominis CCUG 42038 BT,
RT and Aerococcus viridans CCUG 4311T.";
RL Genome Announc. 4:0-0(2016).
RN [2] {ECO:0000313|Proteomes:UP000062260}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CCUG42038B {ECO:0000313|Proteomes:UP000062260};
RA Carkaci D., Dargis R., Nielsen X.C., Skovgaard O., Fuursted K.,
RA Christensen J.J.;
RT "Six Aerococcus type strain genome sequencing and assembly using PacBio and
RT Illumina Hiseq.";
RL Submitted (JAN-2016) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:SDL99167.1, ECO:0000313|Proteomes:UP000183325}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 15634 {ECO:0000313|EMBL:SDL99167.1,
RC ECO:0000313|Proteomes:UP000183325};
RA Varghese N., Submissions S.;
RL Submitted (OCT-2016) to the EMBL/GenBank/DDBJ databases.
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:0000256|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:0000256|HAMAP-Rule:MF_00008};
CC -!- PATHWAY: Pyrimidine metabolism; dTTP biosynthesis. {ECO:0000256|HAMAP-
CC Rule:MF_00008}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00008}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00008}.
CC -!- SIMILARITY: Belongs to the thymidylate synthase family. Bacterial-type
CC ThyA subfamily. {ECO:0000256|HAMAP-Rule:MF_00008}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00008}.
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DR EMBL; CP014163; AMB98700.1; -; Genomic_DNA.
DR EMBL; FNHJ01000003; SDL99167.1; -; Genomic_DNA.
DR RefSeq; WP_067977359.1; NZ_FNHJ01000003.1.
DR AlphaFoldDB; A0A0X8FK01; -.
DR STRING; 128944.AWM75_01235; -.
DR KEGG; auh:AWM75_01235; -.
DR OrthoDB; 9774633at2; -.
DR UniPathway; UPA00575; -.
DR Proteomes; UP000062260; Chromosome.
DR Proteomes; UP000183325; Unassembled WGS sequence.
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 InterPro; IPR020940; Thymidylate_synthase_AS.
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.
DR PROSITE; PS00091; THYMIDYLATE_SYNTHASE; 1.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00008};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_00008};
KW Nucleotide biosynthesis {ECO:0000256|ARBA:ARBA00022727, ECO:0000256|HAMAP-
KW Rule:MF_00008}; Reference proteome {ECO:0000313|Proteomes:UP000062260};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00008}.
FT DOMAIN 3..317
FT /note="Thymidylate synthase/dCMP hydroxymethylase"
FT /evidence="ECO:0000259|Pfam:PF00303"
FT ACT_SITE 197
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU10016"
FT ACT_SITE 197
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00008"
FT BINDING 22
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:0000256|HAMAP-Rule:MF_00008"
FT BINDING 177..178
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00008"
FT BINDING 217..220
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:0000256|HAMAP-Rule:MF_00008"
FT BINDING 220
FT /ligand="(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:15636"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00008"
FT BINDING 228
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:0000256|HAMAP-Rule:MF_00008"
FT BINDING 258..260
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:0000256|HAMAP-Rule:MF_00008"
FT BINDING 316
FT /ligand="(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate"
FT /ligand_id="ChEBI:CHEBI:15636"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00008"
SQ SEQUENCE 317 AA; 36382 MW; B157A3D1904A5BD4 CRC64;
MEQAYLDLLQ HILDHGQEKS DRTGVGTIST FGYQMRFDLS QGFPLLTTKR VPMGLITSEL
LWFLKGDTNV RYLLENNNHI WDEWAFKNWV ESADYQGPDM TDFGLRANQD PEFNQLYQEQ
MKIFQNKVLH DANFANKYGD LGNVYGKQWR HWETRDGGYI DQIANIIDQL KNNPDSRRII
LSAWNPEDIP NMALPPCHTM SQFYVQDGKL SCQLYQRSGD VFLGVPFNIA SYALLTHLLA
REANLEVGEF IHTFGDVHIY TNHVDQVKEQ LTRQPKGFPQ LVIDSAADGK SIFELEKADI
KLEGYDPHPA IKAPVAV
//
