1B99:
reference: Catalytic mechanism of nucleoside diphosphate kinase investigated using nucleotide analogues, viscosity effects, and X-ray crystallography., Gonin P, Xu Y, Milon L, Dabernat S, Morr M, Kumar R, Lacombe ML, Janin J, Lascu I, Biochemistry 1999 Jun 1;38(22):7265-72. PMID: 10353838

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