ID A0A9W6HUS9_9MICO Unreviewed; 269 AA.
AC A0A9W6HUS9;
DT 08-NOV-2023, integrated into UniProtKB/TrEMBL.
DT 08-NOV-2023, sequence version 1.
DT 08-OCT-2025, entry version 10.
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 ECO:0000313|EMBL:GLK02740.1};
GN ORFNames=GCM10017596_24550 {ECO:0000313|EMBL:GLK02740.1};
OS Microbacterium keratanolyticum.
OC Bacteria; Bacillati; Actinomycetota; Actinomycetes; Micrococcales;
OC Microbacteriaceae; Microbacterium.
OX NCBI_TaxID=67574 {ECO:0000313|EMBL:GLK02740.1, ECO:0000313|Proteomes:UP001142325};
RN [1] {ECO:0000313|EMBL:GLK02740.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=VKM Ac-1958 {ECO:0000313|EMBL:GLK02740.1};
RX PubMed=25193709;
RG US DOE Joint Genome Institute (JGI-PGF);
RA Walter F., Albersmeier A., Kalinowski J., Ruckert C.;
RT "Complete genome sequence of Corynebacterium casei LMG S-19264T (=DSM
RT 44701T), isolated from a smear-ripened cheese.";
RL Int. J. Syst. Evol. Microbiol. 189:76-77(2014).
RN [2] {ECO:0000313|EMBL:GLK02740.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=VKM Ac-1958 {ECO:0000313|EMBL:GLK02740.1};
RA Sun Q., Evtushenko L.;
RL Submitted (JAN-2023) 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=dUMP + (6R)-5,10-methylene-5,6,7,8-tetrahydrofolate = 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|ARBA:ARBA00047344,
CC ECO:0000256|HAMAP-Rule:MF_00008};
CC -!- PATHWAY: Pyrimidine metabolism; dTTP biosynthesis. {ECO:0000256|HAMAP-
CC Rule:MF_00008}.
CC -!- SUBUNIT: Homodimer. {ECO:0000256|ARBA:ARBA00011738, ECO:0000256|HAMAP-
CC 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: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:GLK02740.1}.
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DR EMBL; BSET01000002; GLK02740.1; -; Genomic_DNA.
DR RefSeq; WP_204937580.1; NZ_BAAAUM010000002.1.
DR Proteomes; UP001142325; Unassembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
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-UniRule.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR CDD; cd00351; TS_Pyrimidine_HMase; 1.
DR FunFam; 3.30.572.10:FF:000001; Thymidylate synthase; 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; NF002497; PRK01827.1-3; 1.
DR NCBIfam; NF002499; PRK01827.1-5; 1.
DR NCBIfam; TIGR03284; thym_sym; 2.
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:UP001142325};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00008}.
FT DOMAIN 8..269
FT /note="Thymidylate synthase/dCMP hydroxymethylase"
FT /evidence="ECO:0000259|Pfam:PF00303"
FT ACT_SITE 151
FT /evidence="ECO:0000256|PROSITE-ProRule:PRU10016"
FT ACT_SITE 151
FT /note="Nucleophile"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00008"
FT BINDING 26
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 56
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 131..132
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 171..174
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 174
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 182
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 212..214
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 268
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 269 AA; 30567 MW; 4593026EA4F3B403 CRC64;
MSNAVPTPYE DLLRDVLAEG THKSDRTGTG TTSVFGRQIR FDLSQGFPLI TTKRVHFKSI
AYELLWFLRG DSNVGWLKEN GVTIWDEWAD ASGDLGPVYG VQWRSWPTPD GGHIDQLSDV
IEQIRQSPDS RRLIVSAWNP ADIPDMALAP CHALFQFYVA DGKLSCQLYQ RSADMFLGVP
FNIASYALLT MMIAQQVGLE PGDFVWTGGD CHVYDNHQEQ VQEQLSRDAY PYPTLRFARR
PESIFDYRYE DFVIEDYQHH PSIRAAVAV
//
