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Superimposition of the structures taken from a reactive trajectory as the reaction progress from reactant; guanosine + phosphate, (in magenta) proceeding to the cleavage of the N-ribo-sidic bond to form the oxacarbenium ion transition states (in atomic color) and conformational changes and migration of ribosyl group to finally form ribose-1 phosphate as a product (in yellow). (Color appears in Web edition.)
