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Int J Biochem Cell Biol. 1998 Dec;30(12):1291-5.

NM23-NDP kinase.

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  • 1Department of Molecular Biology, Princeton University, NJ 08540, USA.


NM23 belongs to a large family of structurally and functionally conserved proteins consisting of 4-6 identically folded subunits of approximately 16-20 kDa. These oligomeric proteins exhibit nucleoside diphosphate kinase (NDPK) activity that catalyzes nonsubstrate specific conversions of nucleoside diphosphates to nucleoside triphosphates. Many NM23 proteins bind DNA. In vivo, NM23-NDPKs regulate a diverse array of cellular events including growth and development. They are also implicated in the pathogenesis and metastasis of tumors. The mechanism whereby NM23 regulates gene expression is proposed to entail DNA-binding and subsequent alterations in promoter DNA structure. Accordingly, NM23 has the potential to become a useful reagent for gene manipulations.

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