DRTS_PARTE
ID DRTS_PARTE Reviewed; 462 AA.
AC Q27828; A0DTB3;
DT 01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT 01-NOV-1996, sequence version 1.
DT 03-AUG-2022, entry version 119.
DE RecName: Full=Bifunctional dihydrofolate reductase-thymidylate synthase;
DE Short=DHFR-TS;
DE Includes:
DE RecName: Full=Dihydrofolate reductase;
DE EC=1.5.1.3;
DE Includes:
DE RecName: Full=Thymidylate synthase;
DE EC=2.1.1.45;
GN ORFNames=GSPATT00019973001;
OS Paramecium tetraurelia.
OC Eukaryota; Sar; Alveolata; Ciliophora; Intramacronucleata;
OC Oligohymenophorea; Peniculida; Parameciidae; Paramecium.
OX NCBI_TaxID=5888;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC STRAIN=Stock 51;
RX PubMed=8628226; DOI=10.1007/bf02172977;
RA Schlichtherle I.M., van Houten J.L., Roos D.S.;
RT "Cloning and molecular analysis of the bifunctional dihydrofolate
RT reductase-thymidylate synthase gene in the ciliated protozoan Paramecium
RT tetraurelia.";
RL Mol. Gen. Genet. 250:665-673(1996).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Stock d4-2;
RX PubMed=17086204; DOI=10.1038/nature05230;
RA Aury J.-M., Jaillon O., Duret L., Noel B., Jubin C., Porcel B.M.,
RA Segurens B., Daubin V., Anthouard V., Aiach N., Arnaiz O., Billaut A.,
RA Beisson J., Blanc I., Bouhouche K., Camara F., Duharcourt S., Guigo R.,
RA Gogendeau D., Katinka M., Keller A.-M., Kissmehl R., Klotz C., Koll F.,
RA Le Mouel A., Lepere G., Malinsky S., Nowacki M., Nowak J.K., Plattner H.,
RA Poulain J., Ruiz F., Serrano V., Zagulski M., Dessen P., Betermier M.,
RA Weissenbach J., Scarpelli C., Schaechter V., Sperling L., Meyer E.,
RA Cohen J., Wincker P.;
RT "Global trends of whole-genome duplications revealed by the ciliate
RT Paramecium tetraurelia.";
RL Nature 444:171-178(2006).
CC -!- FUNCTION: Bifunctional enzyme. Involved in de novo dTMP biosynthesis.
CC Key enzyme in folate metabolism. Catalyzes an essential reaction for de
CC novo glycine and purine synthesis, DNA precursor synthesis, and for the
CC conversion of dUMP to dTMP (By similarity). {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6S)-5,6,7,8-tetrahydrofolate + NADP(+) = 7,8-dihydrofolate +
CC H(+) + NADPH; Xref=Rhea:RHEA:15009, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57451, ChEBI:CHEBI:57453, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349; EC=1.5.1.3;
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;
CC -!- PATHWAY: Cofactor biosynthesis; tetrahydrofolate biosynthesis; 5,6,7,8-
CC tetrahydrofolate from 7,8-dihydrofolate: step 1/1.
CC -!- SIMILARITY: In the N-terminal section; belongs to the dihydrofolate
CC reductase family. {ECO:0000305}.
CC -!- SIMILARITY: In the C-terminal section; belongs to the thymidylate
CC synthase family. {ECO:0000305}.
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DR EMBL; U03885; AAC47025.1; -; Genomic_DNA.
DR EMBL; CT868563; CAK86280.1; -; Genomic_DNA.
DR PIR; S65570; S65570.
DR RefSeq; XP_001453677.1; XM_001453640.1.
DR AlphaFoldDB; Q27828; -.
DR SMR; Q27828; -.
DR STRING; 5888.CAK86280; -.
DR EnsemblProtists; CAK86280; CAK86280; GSPATT00019973001.
DR GeneID; 5039462; -.
DR KEGG; ptm:GSPATT00019973001; -.
DR eggNOG; KOG0673; Eukaryota.
DR eggNOG; KOG1324; Eukaryota.
DR HOGENOM; CLU_021669_2_2_1; -.
DR InParanoid; Q27828; -.
DR OMA; IFRPWYS; -.
DR UniPathway; UPA00077; UER00158.
DR Proteomes; UP000000600; Partially assembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0005739; C:mitochondrion; IBA:GO_Central.
DR GO; GO:0004146; F:dihydrofolate reductase activity; IEA:UniProtKB-EC.
DR GO; GO:0004799; F:thymidylate synthase activity; IBA:GO_Central.
DR GO; GO:0006231; P:dTMP biosynthetic process; IBA:GO_Central.
DR GO; GO:0032259; P:methylation; IEA:UniProtKB-KW.
DR GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0046654; P:tetrahydrofolate biosynthetic process; IEA:UniProtKB-UniPathway.
DR CDD; cd00209; DHFR; 1.
DR CDD; cd00351; TS_Pyrimidine_HMase; 1.
DR Gene3D; 3.30.572.10; -; 1.
DR Gene3D; 3.40.430.10; -; 1.
DR HAMAP; MF_00008; Thymidy_synth_bact; 1.
DR InterPro; IPR024072; DHFR-like_dom_sf.
DR InterPro; IPR012262; DHFR-TS.
DR InterPro; IPR017925; DHFR_CS.
DR InterPro; IPR001796; DHFR_dom.
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; PF00186; DHFR_1; 1.
DR Pfam; PF00303; Thymidylat_synt; 1.
DR PIRSF; PIRSF000389; DHFR-TS; 1.
DR PRINTS; PR00108; THYMDSNTHASE.
DR SUPFAM; SSF53597; SSF53597; 1.
DR SUPFAM; SSF55831; SSF55831; 1.
DR TIGRFAMs; TIGR03284; thym_sym; 1.
DR PROSITE; PS00075; DHFR_1; 1.
DR PROSITE; PS51330; DHFR_2; 1.
DR PROSITE; PS00091; THYMIDYLATE_SYNTHASE; 1.
PE 3: Inferred from homology;
KW Methyltransferase; Multifunctional enzyme; NADP; Nucleotide biosynthesis;
KW One-carbon metabolism; Oxidoreductase; Reference proteome; Transferase.
FT CHAIN 1..462
FT /note="Bifunctional dihydrofolate reductase-thymidylate
FT synthase"
FT /id="PRO_0000186346"
FT DOMAIN 6..165
FT /note="DHFR"
FT REGION 180..462
FT /note="Thymidylate synthase"
FT ACT_SITE 345
FT /evidence="ECO:0000250"
FT BINDING 10
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 12
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 18..24
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 32
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 49..51
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 68..71
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 101
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 102..109
FT /ligand="NADP(+)"
FT /ligand_id="ChEBI:CHEBI:58349"
FT /evidence="ECO:0000250"
FT BINDING 122
FT /ligand="substrate"
FT /evidence="ECO:0000250"
FT BINDING 200
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /evidence="ECO:0000250"
FT BINDING 346
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /evidence="ECO:0000250"
FT BINDING 364..368
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /evidence="ECO:0000250"
FT BINDING 376
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /evidence="ECO:0000250"
FT BINDING 406..408
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /evidence="ECO:0000250"
SQ SEQUENCE 462 AA; 53201 MW; C8C9B3A12BBD5C72 CRC64;
MTTNKTFSMV LAMTLNGGIG YQNRLPWKLK EDLQRFKKIT TGGIVIMGRK TFESMNSKPL
PNRVNVVISK NMKSSNEVQV FPRIEDALQF YNTSHQKLYL IGGKRIFEEG LATDKCSDVH
LTRIGVETKC DVYLNKNIFS TFQVNKTSQT KSENGINYDY QHLINKNSHE QSYIDEEHQE
NQYLDMITKI MKEGVSKDDR TGVGTMSIFG QTMRFNLAQS FPLLTTKKVF FRGVVEELLW
FLRGNTNGKL LLDKGVKIWE GNGTREYLDT IGLQHRQEHD LGPVYGFQWR HFGAKYKDCQ
TDYSNQGVDQ VKEIIQLLKN NPDSRRIILS AWNPIDLKQM ALPPCHVMSQ FFVANGKLSC
MMYQRSCDFG LGIPFNIASY ALLTYMLAKE CNLNLGEFVH VLGDTHIYSN HVEALKKQIE
RVPYPFPLLK IKGNKSLFDY TYEDFELVGY NAHDKIEMKM AV
