ITPA hydrolyses XTP to XMP
XTP + H2O → XMP + PPi + H+
- Reactome
- R-HSA-2509831
- Compartment
- cytosol
- Rhea
- RHEA:28611
Inputs
- XTPCHEBI:61314, C10H11N4O15P3, cytosol
- H2OCHEBI:15377, H2O, cytosol
Outputs
- XMPCHEBI:57464, C10H11N4O9P, cytosol
- PPiCHEBI:33019, HO7P2, cytosol
- H+CHEBI:15378, H, cytosol
Catalysed by
- XTP diphosphatase activity of ITPA dimer [cytosol]EC 3.6.1.66
Literature
- NUDT16 and ITPA play a dual protective role in maintaining chromosome stability and cell growth by eliminating dIDP/IDP and dITP/ITP from nucleotide pools in mammals Nucleic Acids Res., 2010
- Cloning, expression, and characterization of a human inosine triphosphate pyrophosphatase encoded by the itpa gene J. Biol. Chem., 2001