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Nucleoside diphosphate kinase (NDPK) has many roles and is present in different locations in the cell. Membrane-bound NDPK is present in epithelial fractions enriched for the apical membrane. Here, we show in human, mouse and sheep airway membranes, that the phosphorylation state of...
nm23-h1 is a well-documented metastasis suppressor gene whose mechanism(s) of action have yet to be fully elucidated. The purpose of this report is to discuss recent advances in investigating the potential role of a novel 3′–5′ exonuclease activity identified recently in our laboratory, a...
Previously, we reported a significant reduction in expression and the activity of nucleoside diphosphate kinase (NDP kinase) in islets derived from the Goto-Kakizaki rat (GK rat), an animal model for type 2 diabetes. Herein, we examined the effects of chronic exposure of insulin-secreting β-(INS...
Nm23/NDP kinases A and B encoded by the Nme1/Nme2 genes are multifunctional enzymes responsible for the majority of NDP kinase activity in mammals. This review summarizes recent studies on their physiological roles using a mouse model in which both Nme1 and Nme2 genes have been deleted. The...
The NM23 (non-metastatic 23) family is almost universally conserved across all three domains of life: eubacteria, archaea and eucaryotes. Unicellular organisms possess one NM23 ortholog, whilst vertebrates possess several. Gene multiplication through evolution has been accompanied by structural...
Nm23-H1 (also known as NDPKA) and h-Prune form a protein complex that is part of a little-understood protein network. Modifications of this complex correlate with cancer status. Here, we focus on the role of the Nm23-H1–h-Prune complex in cellular physiology, through an analysis of the balance...
Rho family small GTPase plays a key role in the regulation of cell shape and migration in mammalian cells. Constitutive activation of Rho GTPase leads to the aberrant cell morphology and migration. We identified nm23-H2 as a binding partner of Lbc proto-oncogene product, which specifically...
Interruption of the tumor metastatic process is a new, thought provoking molecular target for the treatment of cancer. The Nm23-H1 metastasis suppressor gene stands as a validated molecular target owing to its reduced expression in many aggressive human tumors, and the reduction in metastatic...
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