Abstract
Nucleoside diphosphate (NDP) kinase is an enzyme that transfers the γ-phosphate of nucleoside triphosphates to nucleoside diphosphates. Besides this well-defined role, recent evidence suggests that NDP kinase may be implicated in a wide variety of essential cellular processes. In this paper, we showed that the NDP kinase ofDrosophilaexhibited protein kinase activity as well as autophosporylation. Ovalbumin was phosphorylated with guanosine 5′-(3-O-thio)triphosphate (GTPγS) or ATP. Protein kinase activity was not detected in NDP kinase mutant,abnormal wing discs(awd). These results suggest that this activity could be one of the functions of NDP kinase essential for normal fly development, sinceawdgene is lethal.
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More From: Biochemical and Biophysical Research Communications
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