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Protein

Thymidylate synthase

Gene

thyA

Organism
Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)
Status
Reviewed-Annotation score: -Protein inferred from homologyi

Functioni

Catalyzes the reductive methylation of 2'-deoxyuridine-5'-monophosphate (dUMP) to 2'-deoxythymidine-5'-monophosphate (dTMP) while utilizing 5,10-methylenetetrahydrofolate (mTHF) as the methyl donor and reductant in the reaction, yielding dihydrofolate (DHF) as a by-product. This enzymatic reaction provides an intracellular de novo source of dTMP, an essential precursor for DNA biosynthesis.UniRule annotation

Catalytic activityi

5,10-methylenetetrahydrofolate + dUMP = dihydrofolate + dTMP.UniRule annotation

Pathwayi: dTTP biosynthesis

This protein is involved in the pathway dTTP biosynthesis, which is part of Pyrimidine metabolism.UniRule annotation
View all proteins of this organism that are known to be involved in the pathway dTTP biosynthesis and in Pyrimidine metabolism.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei21dUMPUniRule annotation1
Binding sitei515,10-methylenetetrahydrofolateUniRule annotation1
Active sitei146NucleophileUniRule annotation1
Binding sitei1695,10-methylenetetrahydrofolateUniRule annotation1
Binding sitei177dUMPUniRule annotation1
Binding sitei2635,10-methylenetetrahydrofolate; via carbonyl oxygenUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi126 – 127dUMP; shared with dimeric partnerUniRule annotation2
Nucleotide bindingi166 – 169dUMPUniRule annotation4
Nucleotide bindingi207 – 209dUMPUniRule annotation3

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionMethyltransferase, Transferase
Biological processNucleotide biosynthesis

Enzyme and pathway databases

BioCyciECOL199310:C3422-MONOMER
UniPathwayiUPA00575

Names & Taxonomyi

Protein namesi
Recommended name:
Thymidylate synthaseUniRule annotation (EC:2.1.1.45UniRule annotation)
Short name:
TSUniRule annotation
Short name:
TSaseUniRule annotation
Gene namesi
Name:thyAUniRule annotation
Ordered Locus Names:c3422
OrganismiEscherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC)
Taxonomic identifieri199310 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
Proteomesi
  • UP000001410 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001409561 – 264Thymidylate synthaseAdd BLAST264

Post-translational modificationi

The N-terminal is probably N-(dihydroxymethyl)-methionine, the hydrated form of N-formylmethionine.By similarity

Keywords - PTMi

Formylation

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi199310.c3422

Structurei

3D structure databases

ProteinModelPortaliP0A885
SMRiP0A885
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the thymidylate synthase family. Bacterial-type ThyA subfamily.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105C0V Bacteria
COG0207 LUCA
HOGENOMiHOG000257900
KOiK00560
OMAiKQYLDLC

Family and domain databases

CDDicd00351 TS_Pyrimidine_HMase, 1 hit
Gene3Di3.30.572.10, 1 hit
HAMAPiMF_00008 Thymidy_synth_bact, 1 hit
InterProiView protein in InterPro
IPR023451 Thymidate_synth/dCMP_Mease
IPR036926 Thymidate_synth/dCMP_Mease_sf
IPR000398 Thymidylate_synthase
IPR020940 Thymidylate_synthase_AS
PfamiView protein in Pfam
PF00303 Thymidylat_synt, 1 hit
PRINTSiPR00108 THYMDSNTHASE
SUPFAMiSSF55831 SSF55831, 1 hit
TIGRFAMsiTIGR03284 thym_sym, 2 hits
PROSITEiView protein in PROSITE
PS00091 THYMIDYLATE_SYNTHASE, 1 hit

Sequencei

Sequence statusi: Complete.

P0A885-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKQYLELMQK VLDEGTQKND RTGTGTLSIF GHQMRFNLQD GFPLVTTKRC
60 70 80 90 100
HLRSIIHELL WFLQGDTNIA YLHENNVTIW DEWADENGDL GPVYGKQWRA
110 120 130 140 150
WPTPDGRHID QITTVLNQLK NDPDSRRIIV SAWNVGELDK MALAPCHAFF
160 170 180 190 200
QFYVADGKLS CQLYQRSCDV FLGLPFNIAS YALLVHMMAQ QCDLEVGDFV
210 220 230 240 250
WTGGDTHLYS NHMDQTHLQL SREPRPLPKL IIKRKPESIF DYRFEDFEIE
260
GYDPHPGIKA PVAI
Length:264
Mass (Da):30,480
Last modified:July 21, 1986 - v1
Checksum:i0E6D88ED98D24D22
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE014075 Genomic DNA Translation: AAN81867.1
RefSeqiWP_000816232.1, NC_004431.1

Genome annotation databases

EnsemblBacteriaiAAN81867; AAN81867; c3422
KEGGiecc:c3422

Similar proteinsi

Entry informationi

Entry nameiTYSY_ECOL6
AccessioniPrimary (citable) accession number: P0A885
Secondary accession number(s): P00470
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: July 21, 1986
Last modified: June 20, 2018
This is version 93 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

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