THYX_CORDI
ID THYX_CORDI Reviewed; 252 AA.
AC Q6NGP3;
DT 26-APR-2005, integrated into UniProtKB/Swiss-Prot.
DT 05-JUL-2004, sequence version 1.
DT 03-AUG-2022, entry version 89.
DE RecName: Full=Flavin-dependent thymidylate synthase {ECO:0000255|HAMAP-Rule:MF_01408};
DE Short=FDTS {ECO:0000255|HAMAP-Rule:MF_01408};
DE EC=2.1.1.148 {ECO:0000255|HAMAP-Rule:MF_01408};
DE AltName: Full=FAD-dependent thymidylate synthase {ECO:0000255|HAMAP-Rule:MF_01408};
DE AltName: Full=Thymidylate synthase ThyX {ECO:0000255|HAMAP-Rule:MF_01408};
DE Short=TS {ECO:0000255|HAMAP-Rule:MF_01408};
DE Short=TSase {ECO:0000255|HAMAP-Rule:MF_01408};
GN Name=thyX {ECO:0000255|HAMAP-Rule:MF_01408}; OrderedLocusNames=DIP1465;
OS Corynebacterium diphtheriae (strain ATCC 700971 / NCTC 13129 / Biotype
OS gravis).
OC Bacteria; Actinobacteria; Corynebacteriales; Corynebacteriaceae;
OC Corynebacterium.
OX NCBI_TaxID=257309;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700971 / NCTC 13129 / Biotype gravis;
RX PubMed=14602910; DOI=10.1093/nar/gkg874;
RA Cerdeno-Tarraga A.-M., Efstratiou A., Dover L.G., Holden M.T.G.,
RA Pallen M.J., Bentley S.D., Besra G.S., Churcher C.M., James K.D.,
RA De Zoysa A., Chillingworth T., Cronin A., Dowd L., Feltwell T., Hamlin N.,
RA Holroyd S., Jagels K., Moule S., Quail M.A., Rabbinowitsch E.,
RA Rutherford K.M., Thomson N.R., Unwin L., Whitehead S., Barrell B.G.,
RA Parkhill J.;
RT "The complete genome sequence and analysis of Corynebacterium diphtheriae
RT NCTC13129.";
RL Nucleic Acids Res. 31:6516-6523(2003).
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,
CC and NADPH and FADH(2) as the reductant. {ECO:0000255|HAMAP-
CC Rule:MF_01408}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=(6R)-5,10-methylene-5,6,7,8-tetrahydrofolate + dUMP + H(+) +
CC NADPH = (6S)-5,6,7,8-tetrahydrofolate + dTMP + NADP(+);
CC Xref=Rhea:RHEA:29043, ChEBI:CHEBI:15378, ChEBI:CHEBI:15636,
CC ChEBI:CHEBI:57453, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC ChEBI:CHEBI:63528, ChEBI:CHEBI:246422; EC=2.1.1.148;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01408};
CC -!- COFACTOR:
CC Name=FAD; Xref=ChEBI:CHEBI:57692;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_01408};
CC Note=Binds 4 FAD per tetramer. Each FAD binding site is formed by three
CC monomers. {ECO:0000255|HAMAP-Rule:MF_01408};
CC -!- PATHWAY: Pyrimidine metabolism; dTTP biosynthesis. {ECO:0000255|HAMAP-
CC Rule:MF_01408}.
CC -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_01408}.
CC -!- SIMILARITY: Belongs to the thymidylate synthase ThyX family.
CC {ECO:0000255|HAMAP-Rule:MF_01408}.
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DR EMBL; BX248358; CAE49993.1; -; Genomic_DNA.
DR RefSeq; WP_010935084.1; NC_002935.2.
DR AlphaFoldDB; Q6NGP3; -.
DR SMR; Q6NGP3; -.
DR STRING; 257309.DIP1465; -.
DR EnsemblBacteria; CAE49993; CAE49993; DIP1465.
DR KEGG; cdi:DIP1465; -.
DR HOGENOM; CLU_077585_1_0_11; -.
DR OMA; AKLGPRC; -.
DR OrthoDB; 896350at2; -.
DR UniPathway; UPA00575; -.
DR Proteomes; UP000002198; Chromosome.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0050797; F:thymidylate synthase (FAD) 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 Gene3D; 3.30.1360.170; -; 1.
DR Gene3D; 3.30.70.3180; -; 1.
DR HAMAP; MF_01408; ThyX; 1.
DR InterPro; IPR003669; Thymidylate_synthase_ThyX.
DR InterPro; IPR036098; Thymidylate_synthase_ThyX_sf.
DR PANTHER; PTHR34934; PTHR34934; 1.
DR Pfam; PF02511; Thy1; 1.
DR SUPFAM; SSF69796; SSF69796; 1.
DR TIGRFAMs; TIGR02170; thyX; 1.
DR PROSITE; PS51331; THYX; 1.
PE 3: Inferred from homology;
KW FAD; Flavoprotein; Methyltransferase; NADP; Nucleotide biosynthesis;
KW Reference proteome; Transferase.
FT CHAIN 1..252
FT /note="Flavin-dependent thymidylate synthase"
FT /id="PRO_0000175558"
FT DOMAIN 7..235
FT /note="ThyX"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU00661"
FT MOTIF 97..107
FT /note="ThyX motif"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT ACT_SITE 201
FT /note="Involved in ionization of N3 of dUMP, leading to its
FT activation"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT BINDING 94..97
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT BINDING 97..99
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /ligand_note="ligand shared between neighboring subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT BINDING 105..109
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_01408"
FT BINDING 105
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /ligand_note="ligand shared between neighboring subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT BINDING 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:0000255|HAMAP-Rule:MF_01408"
FT BINDING 190..192
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /ligand_note="ligand shared between neighboring subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT BINDING 196
FT /ligand="FAD"
FT /ligand_id="ChEBI:CHEBI:57692"
FT /ligand_note="ligand shared between neighboring subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
FT BINDING 201
FT /ligand="dUMP"
FT /ligand_id="ChEBI:CHEBI:246422"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01408"
SQ SEQUENCE 252 AA; 28323 MW; D1981DC7C15A1CAC CRC64;
MAQQSLLDVQ LVACSTFTTP SGVDWKVDSA ATDSEALVEF AGRACYETFD KPNPRTAAND
AYIRHIMEVG HMALLEHPTA TVYIRGLSRS ATHELVRHRH FSFSQLSQRF VHSDETHVVI
PPLIDNDPQL RELFLSTVDE VRFAYSELMT ALDNKLADEP NAILRRKQAR QAARSILPNA
TESRIVVTGN FRAWRHFIGM RATEHADVEI RSLAVRCLEI LKEKAPTVFS DFETSVLSDG
SIMATSPYVT DY
