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Protein

Thymidylate synthase

Gene

thyA

Organism
Thiobacillus denitrificans (strain ATCC 25259)
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

BioCyciTDEN292415:G1G56-2065-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:Tbd_2040
OrganismiThiobacillus denitrificans (strain ATCC 25259)
Taxonomic identifieri292415 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaBetaproteobacteriaNitrosomonadalesThiobacillaceaeThiobacillus
Proteomesi
  • UP000008291 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000006991 – 264Thymidylate synthaseAdd BLAST264

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Protein-protein interaction databases

STRINGi292415.Tbd_2040

Structurei

3D structure databases

ProteinModelPortaliQ3SH96
SMRiQ3SH96
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
OrthoDBiPOG091H02L6

Family and domain databases

CDDicd00351 TS_Pyrimidine_HMase, 1 hit
Gene3Di3.30.572.101 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.

Q3SH96-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKPYLDLMRH VLEHGTRKDD RTGTGTLSVF GWQTRYDLAA GFPLVTTKKC
60 70 80 90 100
HLRSIVHELL WFLQGDTNIR YLKENGVSIW DEWADENGDL GPVYGHQWRS
110 120 130 140 150
WPKADGGVID QIAEAVKTLR TNPDSRRIIV SAWNVADLDR MALAPCHAFF
160 170 180 190 200
QFYVAEGRLS CQLYQRSADI FLGVPFNIAS YALLTLMMAQ VTGLKPGDFV
210 220 230 240 250
HTLGDAHLYV NHLEQAREQL SREPRPLPTM TLNPDVTDIF GFRFEDFTLG
260
GYDPHPAIKA PVAV
Length:264
Mass (Da):29,887
Last modified:October 11, 2005 - v1
Checksum:iF0709764BCF1B166
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000116 Genomic DNA Translation: AAZ97993.1
RefSeqiWP_011312552.1, NC_007404.1

Genome annotation databases

EnsemblBacteriaiAAZ97993; AAZ97993; Tbd_2040
KEGGitbd:Tbd_2040

Similar proteinsi

Entry informationi

Entry nameiTYSY_THIDA
AccessioniPrimary (citable) accession number: Q3SH96
Entry historyiIntegrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: October 11, 2005
Last modified: February 28, 2018
This is version 88 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, Reference proteome