ID D2RRK7_HALTV Unreviewed; 338 AA.
AC D2RRK7;
DT 02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT 02-MAR-2010, sequence version 1.
DT 27-MAR-2024, entry version 80.
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 OrderedLocusNames=Htur_1682 {ECO:0000313|EMBL:ADB60567.1};
OS Haloterrigena turkmenica (strain ATCC 51198 / DSM 5511 / JCM 9101 / NCIMB
OS 13204 / VKM B-1734 / 4k) (Halococcus turkmenicus).
OC Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Natrialbales;
OC Natrialbaceae; Haloterrigena.
OX NCBI_TaxID=543526 {ECO:0000313|EMBL:ADB60567.1, ECO:0000313|Proteomes:UP000001903};
RN [1] {ECO:0000313|EMBL:ADB60567.1, ECO:0000313|Proteomes:UP000001903}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51198 / DSM 5511 / JCM 9101 / NCIMB 13204 / VKM B-1734 /
RC 4k {ECO:0000313|Proteomes:UP000001903};
RX PubMed=21304683; DOI=10.4056/sigs.681272;
RA Saunders E., Tindall B.J., Fahnrich R., Lapidus A., Copeland A.,
RA Del Rio T.G., Lucas S., Chen F., Tice H., Cheng J.F., Han C., Detter J.C.,
RA Bruce D., Goodwin L., Chain P., Pitluck S., Pati A., Ivanova N.,
RA Mavromatis K., Chen A., Palaniappan K., Land M., Hauser L., Chang Y.J.,
RA Jeffries C.D., Brettin T., Rohde M., Goker M., Bristow J., Eisen J.A.,
RA Markowitz V., Hugenholtz P., Klenk H.P., Kyrpides N.C.;
RT "Complete genome sequence of Haloterrigena turkmenica type strain (4k).";
RL Stand. Genomic Sci. 2:107-116(2010).
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}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CP001860; ADB60567.1; -; Genomic_DNA.
DR RefSeq; WP_012942863.1; NC_013743.1.
DR AlphaFoldDB; D2RRK7; -.
DR STRING; 543526.Htur_1682; -.
DR GeneID; 8742276; -.
DR KEGG; htu:Htur_1682; -.
DR eggNOG; arCOG03214; Archaea.
DR HOGENOM; CLU_021669_0_0_2; -.
DR OrthoDB; 50118at2157; -.
DR UniPathway; UPA00575; -.
DR Proteomes; UP000001903; 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; Thymidylate synthase/dCMP hydroxymethylase domain; 2.
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 NCBIfam; TIGR03284; thym_sym; 1.
DR PANTHER; PTHR11548; THYMIDYLATE SYNTHASE 1; 1.
DR PANTHER; PTHR11548:SF1; THYMIDYLATE SYNTHASE-RELATED; 1.
DR Pfam; PF00303; Thymidylat_synt; 1.
DR PRINTS; PR00108; THYMDSNTHASE.
DR SUPFAM; SSF55831; Thymidylate synthase/dCMP hydroxymethylase; 2.
PE 3: Inferred from homology;
KW Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00008};
KW Methyltransferase {ECO:0000256|ARBA:ARBA00022603, ECO:0000256|HAMAP-
KW Rule:MF_00008}; Nucleotide biosynthesis {ECO:0000256|HAMAP-Rule:MF_00008};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_00008}.
FT DOMAIN 2..337
FT /note="Thymidylate synthase/dCMP hydroxymethylase"
FT /evidence="ECO:0000259|Pfam:PF00303"
FT ACT_SITE 172
FT /note="Nucleophile"
FT /evidence="ECO:0000256|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:0000256|HAMAP-Rule:MF_00008"
FT BINDING 152..153
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 192..195
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 195
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 203
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 233..235
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 337
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 338 AA; 38814 MW; 21763D723BE536C2 CRC64;
MRQYLELVDT VLSEGTYKPN RTGVDTISSF SEHYEVDLQD GYPLLTTKQM DGYRWNSMLH
EVCWYLSGEE HIRDLREETK IWDAWADDEG RLDTAYGRFW RRFPIPEDDA QLEGESWPDE
THQWVTEEAD GRRTFDQLQY VIDTLSDSPN SRRLVVNAWH PANAAVSTLP PCHYSFVFNA
QGDRLNCHLT QRSGDTALGI PFNIAAYALL TKVIAQQTGF KPGTFAHTVV DTHVYCGRGD
RGEWYADNLE TLQSRLNDVE DREDYLEVKS WLESAAPDEA EGDERLDHVP GLLEQLSREP
LERPTLEVAD VSIDELAYED VELKNYESHE GIEFAVAE
//
