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Rabbit Anti-Inosine triphosphate pyrophosphatase antibody
ITPase (inosine triphosphate pyrophosphatase) is also known as putative oncogene protein hlc14-06-p or ITPA (inosine triphosphatase (nucleoside triphosphate pyrophosphatase)) and is a 194 amino acid protein. ITPase is abundantly expressed in heart, liver, sex glands, thyroid and adrenal gland, and is localized to the cytoplasm in the cell. ITPase catalyzes the pyrophosphohydrolysis of both ITP (inosine triphosphate) and dITP (deoxyinosine triphosphate) to IMP (inosine monophosphate) and diphosphate. IMP can be used as a substrate for purine nucleotide pathways. IMP can be phosphorylated to ITP, and ITPase can regulate the concentration of ITP in the cell by converting ITP back to IMP. Defects in ITPase result in ITPase deficiency which is thought to be inherited and is characterized by an over-accumulation of ITP in erythocytes, leukocytes and fibroblasts.
Function:
Hydrolyzes ITP and dITP to their respective monophosphate derivatives. Xanthosine 5'-triphosphate (XTP) is also a potential substrate. May be the major enzyme responsible for regulating ITP concentration in cells.
Subcellular Location:
Cytoplasm.
Tissue Specificity:
Ubiquitous. Highly expressed in heart, liver, sex glands, thyroid and adrenal gland.
Similarity:
Belongs to the HAM1 NTPase family.
SWISS:
Q9BY32
Gene ID:
3704
Database links:
Entrez Gene: 3704 Human
Entrez Gene: 16434 Mouse
Entrez Gene: 311422 Rat
Omim: 147520 Human
SwissProt: Q9BY32 Human
SwissProt: Q9D892 Mouse
SwissProt: D3ZW55 Rat
Unigene: 415299 Human
Unigene: 21399 Mouse
Unigene: 203856 Rat
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