The enzyme, which appears to be limited to metazoa, acts on multiple nucleoside diphosphates as well as on D-ribose 5-diphosphate. Specificity depends on species and isoform.
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SYSTEMATIC NAME
IUBMB Comments
nucleoside-diphosphate phosphohydrolase
The enzyme, which appears to be limited to metazoa, acts on multiple nucleoside diphosphates as well as on D-ribose 5-diphosphate. Specificity depends on species and isoform.
NTPDase3 in cells from the stratified esophageal and forestomach epithelia, and in some enteroendocrine cells of the gastric antrum. NTPDase3 and -2 are coexpressed within the myenteric and submucosal plexuses, as well as in the nerve terminals of the smooth muscle layer and mucosa
parenchyma, NTPDase1 and NTPDase2, the latter in association with connective tissue. NTPDase3 is located in the apical pole of the epithelial cells lining the lumen of the secretory portion of the prostate gland
specific localization of NTPDase3 in the digestive system, by semiquantitative RT-PCR, immunohistochemistry, and in situ activity assay, detailed overview
uracil nucleotides induce a strong contractile response in Entpd1-/- denuded aortic rings, ATP and ADP do not display constrictor effect at concentrations below 0.03 mM
macrophages isolated from NTPDase1-null mice are devoid of all ADPase and most ATPase activities when compared with wild type macrophages. NTPDase1-null macrophages exposed to millimolar concentrations of ATP are more susceptible to cell death, release more interleukin-1beta and interleukin-18 after TLR2 or TLR4 priming, and incorporate the fluorescent dye Yo-Pro-1 more efficiently (suggestive of increased pore formation) than wild type cells
nucleotide hydrolysis is impaired in the wall of Entpd1-/- vessels compared with Entpd1+/+ aortas, which display significant ADPase and ATPase activity
NTPDase1 is the dominant ectonucleotidase responsible for the hydrolysis of ATP and ADP at the surface of mouse primary macrophages. NTPDase1 regulates P2X7-dependent responses in peritoneal macrophages
functional roles of NTPDase3 in association with NTPDase2 and ecto-5'-nucleotidase, in epithelial functions such as secretion and in enteric neurotransmission
NTPDase1 controls endothelial P2Y receptor-dependent relaxation, regulating both agonist level and P2 receptor reactivity. NTPDase1 differentially influences UTP and ATP responses in vivo