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DNA deformability and hydration studied by molecular dynamics simulation

Yonetani, Yoshiteru*; Kono, Hidetoshi; Fujii, Satoshi*; Sarai, Akinori*; Go, Nobuhiro

DNA tetramer sequences AATT and TTAA are known to be conformationally more rigid and flexible, respectively. In this study, we carry out molecular dynamics simulations of these two sequences, and investigate the characteristic hydration pattern. The rigid AATT is found to be more likely to construct the hydration spine in the minor groove than the flexible TTAA. The result suggests that the hydration water molecules play a critical role for determining the sequence dependent deformability of DNA conformation.

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Category:Chemistry, Physical

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