This gene encodes an inosine triphosphate pyrophosphohydrolase. The encoded protein hydrolyzes inosine triphosphate and deoxyinosine triphosphate to the monophosphate nucleotide and diphosphate. This protein, which is a member of the HAM1 NTPase protein family, is found in the cytoplasm and acts as a homodimer. Defects in the encoded protein can result in inosine triphosphate pyrophosphorylase deficiency which causes an accumulation of ITP in red blood cells. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Jun 2012].
Vroemen, Munnix, Bakker, Bierau, Huts, Leers: "A novel multiparameter flow cytometric assay for inosine triphosphatase expression analysis in leukocytes." in: Cytometry. Part A : the journal of the International Society for Analytical Cytology, Vol. 81, Issue 8, pp. 672-8, (2012) (PubMed).