Abstract
Poly (dA)·poly (dT) has unusual properties in that it cannot associate into nucleosomes and short, phased runs of it cause DNA bending. The crystal structure of a B-type DNA dodecamer containing a homopolymeric run of six A·T base pairs shows that this region possesses special structural features, including a system of bifurcated hydrogen bonds, which explains some of the properties of this simple homopolymer.
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Nelson, H., Finch, J., Luisi, B. et al. The structure of an oligo(dA)·oligo(dT) tract and its biological implications. Nature 330, 221–226 (1987). https://doi.org/10.1038/330221a0
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DOI: https://doi.org/10.1038/330221a0
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