Abstract

The DNA molecule is one of the most remarkable biological molecules. It performs important functions in living systems: conservation and transmission of genetic information. The DNA structure (Fig. 1), discovered by Watson and Crick (Watson and Crick in Nature 171:737, 1953;Crick and Watson in Proc. R. Soc. London. Ser. A 223:80, 1954;), largely determines the main dynamic and functional properties of the DNA molecule. In particular, the structure determines the peculiarities of the movement of locally unwound regions—the DNA kinks (Fig. 2), as well as the kink trajectories which are discussed in this chapter.

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