Abstract
Unusual structures induced by DNA supercoiling attract a good deal of attention these days. The studies of the cruciform and the Z form were extensively reviewed in the first two volumes of this series (Soumpasis and Jovin 1987; Nordheim 1987; Lilley et al. 1987; Holloman 1988). In addition to these well-characterized structures, a new class of DNA structures have recently been discovered. These structures are stabilized not only by negative supercoiling but also by acid pH. They are inherent in sequences with considerable asymmetry in distribution of purines and pyrimidines between the complementary strands (such as homopurine-homopyrimidine) and include non-Watson-Crick base pairing. Pulleyblank (1988) reviewed the early development in the field. However, since then a considerable progress has been achieved, which is reviewed in this chapter.
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Frank-Kamenetskii, M.D. (1990). Protonated DNA Structures. In: Eckstein, F., Lilley, D.M.J. (eds) Nucleic Acids and Molecular Biology 4. Nucleic Acids and Molecular Biology, vol 4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-84150-7_1
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DOI: https://doi.org/10.1007/978-3-642-84150-7_1
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