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Snapshots of the C99S mutant simulation at the beginning after 1 ps (panel a) and at the end after 22500 ps (panel b). Only the DNA and key residues that are important for this study in the C99S mutant protein are shown. The AP-site containing DNA strand is shown in cyan and the complementary strand in magenta. The side chains of key residues of the C99S mutant are shown in yellow. Dotted green and blue lines represent H-bonds and the distance is indicated.
