Abstract
DIFFERENT DNA sequences have different physical properties, which seem to be important for their biological function1-3. In particular, (dA)n · (dT)n has many unusual features1,4, which include resistance to conformational changes in a variable chemical environment5, an unusual thermodynamics of interaction with ligands6, and the inability to reassociate into nucleosomes7. Short A · T base-pair runs also play a critical role in DNA bending8. It is believed that hydration of DNA is an important factor in determining the physical chemical and biological properties of different regions of DNA1. Until now, however, it has not been possible to study the details of the hydration of DNA in dilute solution with sufficient sensitivity and precision. Moreover, it was not known if different base sequences differ in the extent of their hydration. Indirect evidence that (d A)n · (dT)n can be hydrated to a greater extent than other DNA sequences may be inferred from a recent study of the binding of drugs to polynucleotides6. Here we used a novel high-precision technique measuring ultrasonic velocity9 to obtain direct estimates of the extent of hydration of various oligo- and polynucleotides in dilute solution. We report that different DNA sequences differ in their hydration, and that (dA)n · (dT)n in particular has an anomalously high level of hydration.
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References
Saenger, W. Principles of Nucleic Acid Structure (Springer, New York, 1984).
Berowiec, J. A., Zhang, L., Sasse-Dwight, S. & Gralla, J. D. J. molec. Biol. 196, 101–111 (1987).
Anderson, J. E., Ptashne, M. & Harrison, S. C. Nature 326, 846–852 (1987).
Nelson, H. C. M., Finch, J. T., Luisi, B. F. & Klug, A. Nature 330, 221–226 (1987).
Leslie, A. G. W., Arnott, S., Chandrasekaran, R. & Ratliff, R. L. J. molec. Biol. 143, 49–72 (1980).
Breslauer, K. J. et al. Proc. Natn. Acad. Sci. U.S.A. 84, 8922–8926 (1987).
Kunkel, G. R. & Martinson, N. G. Nucleic Acids Res. 9, 6869–6888 (1981).
Wu, H. M. & Crothers, D. M. Nature 308, 509–513 (1984).
Sarvazyan, A. P. Ultrasonics 20, 151–154 (1982).
Conway, B. E. Ionic Hydration in Chemistry (Elsevier, Amsterdam, 1981).
Roy-Chowdhury, P. Macromolec. chem. Phys. C27(2), 219–252 (1987).
Buckin, V. A. Biophys. Chem. 29, 283–292 (1988).
Shiio, H., Ogawa, T. & Yoshihashi, H. J. Am. chem. Soc. 77, 4980–4982 (1955).
Buckin, V. A., Kankiya, B. I., Sarvazyan, A. P. & Uedaira, H. Nucleic Acids Res., in the press.
Lo Surdo, A., Shin, Ch., Millero, F. J. J. chem. Engng. Data 23, 187–201 (1978).
Ivanova, E. M., Kutiavin, I. V., Pletnev, A. G. & Shamanin, V. A. Bioorg. Chem. 8, 1501–1515 (1982).
Maxam, A. G. & Gilbert, W. Meth. Enzym. 65, 499–560 (1986).
Pavlov, M. Ya. & Fedorov, B. A. Biofizika. 28, 931–936 (1983).
Tunis, M. J. B., Hearst, J. E. Biopolymers 6, 1325–1344 (1968).
Mrevlishvili, G. M. Dokl. Akad. Nauk. SSSR 260, 761–764 (1981).
Chuprina, V. P. FEBS Lett. 186, 98–102 (1985).
Chuprina, V. P. FEBS Lett. 195, 363 (1986).
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Buckin, V., Kankiya, B., Bulichov, N. et al. Measurement of anomalously high hydration of (dA)n · (dT)n double helices in dilute solution. Nature 340, 321–322 (1989). https://doi.org/10.1038/340321a0
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DOI: https://doi.org/10.1038/340321a0
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