catalytic activity:A nucleoside diphosphate + H(2)O = a nucleotide + phosphate.,cofactor:Calcium.,function:Calcium-dependent nucleotidase with a preference for UDP. The order of activity with different substrates is UDP > GDP > UTP > GTP. Has very low activity towards ADP and even lower activity towards ATP. Does not hydrolyze AMP and GMP.,miscellaneous:Not inhibited by azide.,PTM:N-glycosylated.,similarity:Belongs to the apyrase family.,subcellular location:Processed form: Secreted.,subunit:Monomer.,tissue specificity:Widely expressed.,
Endoplasmic reticulum membrane ; Single-pass type II membrane protein . Golgi apparatus, Golgi stack membrane ; Single-pass type II membrane protein . Cell membrane . Processed form: Secreted.
Widely expressed.
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