E8PQ17 · E8PQ17_THESS

Function

function

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.

Caution

Lacks conserved residue(s) required for the propagation of feature annotation.

Catalytic activity

Cofactor

Mg2+ (UniProtKB | Rhea| CHEBI:18420 )

Note: Binds 1 Mg2+ ion per subunit.

Features

Showing features for binding site, active site.

TypeIDPosition(s)Description
Binding site7-12substrate
Active site68Proton acceptor
Binding site68Mg2+ (UniProtKB | ChEBI)
Binding site69substrate
Binding site150-153substrate
Binding site173substrate
Binding site178-179substrate

GO annotations

AspectTerm
Cellular Componentcytosol
Molecular FunctiondITP diphosphatase activity
Molecular FunctionITP diphosphatase activity
Molecular Functionmetal ion binding
Molecular Functionnucleotide binding
Molecular Functionribonucleoside triphosphate phosphatase activity
Molecular FunctionXTP diphosphatase activity
Biological Processnucleotide metabolic process
Biological Processpurine nucleoside triphosphate catabolic process

Keywords

Enzyme and pathway databases

Names & Taxonomy

Protein names

  • Recommended name
    dITP/XTP pyrophosphatase
  • EC number
  • Alternative names
    • Non-canonical purine NTP pyrophosphatase
    • Non-standard purine NTP pyrophosphatase
    • Nucleoside-triphosphate diphosphatase
    • Nucleoside-triphosphate pyrophosphatase
      (NTPase
      )

Gene names

    • Name
      rdgB
    • Ordered locus names
      TSC_c23340

Organism names

Accessions

  • Primary accession
    E8PQ17

Proteomes

Subcellular Location

Interaction

Subunit

Homodimer.

Protein-protein interaction databases

Family & Domains

Sequence similarities

Belongs to the HAM1 NTPase family.

Phylogenomic databases

Family and domain databases

Sequence

  • Sequence status
    Complete
  • Length
    203
  • Mass (Da)
    22,352
  • Last updated
    2011-04-05 v1
  • Checksum
    AF8F17FC8BDBAD99
MRLVLATSNPGKVQELKEGLAPLGWTLLSLADFPLRMPKEEGATFLENALLKAAYVAKATGLPALADDSGLEVPALGGEPGVYSARYGGRETDRERNVYLLERMRHLKGEERKARFVAVLVLAYPDGHVETYEGQVEGYILEAPRGEGGFGYDPLFYVPEAGKTFAEMTLEEKARYSHRGQAIKALLKAYEQGPPPREISQLE

Sequence databases

Nucleotide SequenceProtein SequenceMolecule TypeStatus
CP001962
EMBL· GenBank· DDBJ
ADW22936.1
EMBL· GenBank· DDBJ
Genomic DNA

Genome annotation databases

Similar Proteins

Disclaimer

Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.
We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.
FeedbackHelp