R7TG77 · R7TG77_CAPTE
- ProteinInosine triphosphate pyrophosphatase
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids186 (go to sequence)
- Protein existenceInferred from homology
- Annotation score4/5
Function
function
Pyrophosphatase that hydrolyzes non-canonical purine nucleotides such as inosine triphosphate (ITP), deoxyinosine triphosphate (dITP) or xanthosine 5'-triphosphate (XTP) to their respective monophosphate derivatives. The enzyme does not distinguish between the deoxy- and ribose forms. Probably excludes non-canonical purines from RNA and DNA precursor pools, thus preventing their incorporation into RNA and DNA and avoiding chromosomal lesions.
Catalytic activity
- H2O + ITP = diphosphate + H+ + IMP
Cofactor
Mn2+ (UniProtKB | Rhea| CHEBI:29035 )
Note: Binds 1 divalent metal cation per subunit; can use either Mg2+ or Mn2+.
Features
Showing features for binding site.
Type | ID | Position(s) | Description | |||
---|---|---|---|---|---|---|
Binding site | 9-14 | ITP (UniProtKB | ChEBI) | ||||
Sequence: TGNAKK | ||||||
Binding site | 39 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: E | ||||||
Binding site | 51 | ITP (UniProtKB | ChEBI) | ||||
Sequence: K | ||||||
Binding site | 67 | Mg2+ (UniProtKB | ChEBI) | ||||
Sequence: D | ||||||
Binding site | 67-68 | ITP (UniProtKB | ChEBI) | ||||
Sequence: DT | ||||||
Binding site | 144-147 | ITP (UniProtKB | ChEBI) | ||||
Sequence: FGWD | ||||||
Binding site | 167 | ITP (UniProtKB | ChEBI) | ||||
Sequence: K | ||||||
Binding site | 172-173 | ITP (UniProtKB | ChEBI) | ||||
Sequence: HR |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | metal ion binding | |
Molecular Function | nucleoside triphosphate diphosphatase activity | |
Molecular Function | nucleotide binding | |
Biological Process | deoxyribonucleoside triphosphate catabolic process | |
Biological Process | nucleotide metabolic process |
Keywords
- Molecular function
- Biological process
- Ligand
Enzyme and pathway databases
Names & Taxonomy
Protein names
- Recommended nameInosine triphosphate pyrophosphatase
- EC number
- Short namesITPase ; Inosine triphosphatase
- Alternative names
Gene names
Organism names
- Strain
- Taxonomic lineageEukaryota > Metazoa > Spiralia > Lophotrochozoa > Annelida > Polychaeta > Sedentaria > Scolecida > Capitellidae > Capitella
Accessions
- Primary accessionR7TG77
Proteomes
Subcellular Location
Interaction
Structure
Sequence
- Sequence statusComplete
- Length186
- Mass (Da)20,852
- Last updated2013-07-24 v1
- Checksum4971006388FAAF8E
Keywords
- Technical term
Sequence databases
Nucleotide Sequence | Protein Sequence | Molecule Type | Status | |
---|---|---|---|---|
AMQN01003170 EMBL· GenBank· DDBJ | - | Genomic DNA | No translation available. | |
KB311062 EMBL· GenBank· DDBJ | ELT90051.1 EMBL· GenBank· DDBJ | Genomic DNA |