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RMSD distributions for sets of nucleotide doublets. (a) The full set of 20,613 doublets compared to the Size-10 Library. (b) The full set of 20,613 compared to the Size-30 Library. (c) The reduced set of 8466 compared to the Size-30 Library. Cumulative percentages are given directly on the graphs for RMSD values up to and including 1, 2 and 3 Å.
