A0A1L8EBR8 · A0A1L8EBR8_HAEIR
- ProteinInosine triphosphate pyrophosphatase
- StatusUniProtKB unreviewed (TrEMBL)
- Amino acids188 (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 | 143-146 | ITP (UniProtKB | ChEBI) | ||||
Sequence: FGWD | ||||||
Binding site | 166 | ITP (UniProtKB | ChEBI) | ||||
Sequence: K | ||||||
Binding site | 171-172 | ITP (UniProtKB | ChEBI) | ||||
Sequence: HR |
GO annotations
Aspect | Term | |
---|---|---|
Cellular Component | cytoplasm | |
Molecular Function | dITP diphosphatase activity | |
Molecular Function | ITP diphosphatase activity | |
Molecular Function | metal ion binding | |
Molecular Function | nucleotide binding | |
Molecular Function | XTP diphosphatase activity | |
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
Organism names
- Taxonomic lineageEukaryota > Metazoa > Ecdysozoa > Arthropoda > Hexapoda > Insecta > Pterygota > Neoptera > Endopterygota > Diptera > Brachycera > Muscomorpha > Muscoidea > Muscidae > Haematobia
Accessions
- Primary accessionA0A1L8EBR8
Subcellular Location
Interaction
Subunit
Homodimer.
Structure
Sequence
- Sequence statusComplete
- Length188
- Mass (Da)21,199
- Last updated2017-03-15 v1
- Checksum9E3567B052E4FD43