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Protein

dITP/XTP pyrophosphatase

Gene

cgR_2413

Organism
Corynebacterium glutamicum (strain R)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Protein inferred from homologyi

Functioni

Pyrophosphatase that catalyzes the hydrolysis of nucleoside triphosphates to their monophosphate derivatives, with a high preference for the non-canonical purine nucleotides XTP (xanthosine triphosphate), dITP (deoxyinosine triphosphate) and ITP. Seems to function as a house-cleaning enzyme that removes non-canonical purine nucleotides from the nucleotide pool, thus preventing their incorporation into DNA/RNA and avoiding chromosomal lesions.UniRule annotation

Catalytic activityi

XTP + H2O = XMP + diphosphate.UniRule annotation
dITP + H2O = dIMP + diphosphate.UniRule annotation
ITP + H2O = IMP + diphosphate.UniRule annotation

Cofactori

Mg2+UniRule annotationNote: Binds 1 Mg2+ ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei72Proton acceptorUniRule annotation1
Metal bindingi72MagnesiumUniRule annotation1
Binding sitei73Substrate; via amide nitrogenUniRule annotation1
Binding sitei182SubstrateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionHydrolase
Biological processNucleotide metabolism
LigandMagnesium, Metal-binding, Nucleotide-binding

Names & Taxonomyi

Protein namesi
Recommended name:
dITP/XTP pyrophosphataseUniRule annotation (EC:3.6.1.66UniRule annotation)
Alternative name(s):
Non-canonical purine NTP pyrophosphataseUniRule annotation
Non-standard purine NTP pyrophosphataseUniRule annotation
Nucleoside-triphosphate diphosphataseUniRule annotation
Nucleoside-triphosphate pyrophosphataseUniRule annotation
Short name:
NTPaseUniRule annotation
Gene namesi
Ordered Locus Names:cgR_2413
OrganismiCorynebacterium glutamicum (strain R)
Taxonomic identifieri340322 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaCorynebacterialesCorynebacteriaceaeCorynebacterium
Proteomesi
  • UP000006698 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_10000684181 – 206dITP/XTP pyrophosphataseAdd BLAST206

Interactioni

Subunit structurei

Homodimer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA4QGQ5.
SMRiA4QGQ5.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni7 – 12Substrate bindingUniRule annotation6
Regioni155 – 158Substrate bindingUniRule annotation4
Regioni187 – 188Substrate bindingUniRule annotation2

Sequence similaritiesi

Belongs to the HAM1 NTPase family.UniRule annotation

Phylogenomic databases

HOGENOMiHOG000293319.
KOiK02428.
OMAiYDPIFQP.
OrthoDBiPOG091H02BP.

Family and domain databases

CDDicd00515. HAM1. 1 hit.
Gene3Di3.90.950.10. 1 hit.
HAMAPiMF_01405. Non_canon_purine_NTPase. 1 hit.
InterProiView protein in InterPro
IPR020922. dITP/XTP_pyrophosphatase.
IPR002637. Ham1p-like.
IPR029001. ITPase-like_fam.
PANTHERiPTHR11067. PTHR11067. 1 hit.
PfamiView protein in Pfam
PF01725. Ham1p_like. 1 hit.
SUPFAMiSSF52972. SSF52972. 1 hit.
TIGRFAMsiTIGR00042. TIGR00042. 1 hit.

Sequencei

Sequence statusi: Complete.

A4QGQ5-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MKLLLASNNA KKLKELQRIL DQAGLDSVEL LALRDVEAYD EPIEDGRTFA
60 70 80 90 100
DNAQIKARAG VAHTGIATIA DDSGIAVEEL NGMPGVLSAR WSGAHGNDTA
110 120 130 140 150
NNELLLAQME HVPDERRNAA FVSVCVLALP DGQEFVQEGR WEGQLLRGPK
160 170 180 190 200
GENGFGYDPL FIPAEEIGGQ GRSSAELSAE EKDALSHRGQ ALRGLVEKIA

QVAAAS
Length:206
Mass (Da):22,010
Last modified:May 15, 2007 - v1
Checksum:i55B7921E2301BB3F
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AP009044 Genomic DNA. Translation: BAF55421.1.
RefSeqiWP_011897795.1. NC_009342.1.

Genome annotation databases

EnsemblBacteriaiBAF55421; BAF55421; cgR_2413.
KEGGicgt:cgR_2413.

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.

Entry informationi

Entry nameiIXTPA_CORGB
AccessioniPrimary (citable) accession number: A4QGQ5
Entry historyiIntegrated into UniProtKB/Swiss-Prot: February 5, 2008
Last sequence update: May 15, 2007
Last modified: July 5, 2017
This is version 66 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. SIMILARITY comments
    Index of protein domains and families