Abstract
Regular homopurine-homopyrimidine tracts, (dG–dA)n·(dT–dC)n and (dG)R·(dC)n, undergo a superhelix-induced, strongly pH-dependent, structural transition into a novel DNA conformation, the H form1–3. We have suggested that the H form can arise in any homopurine-homopyrimidine mirror repeat (H palindrome)3. We have now tested this prediction using a tailored series of plasmids carrying the inserts AAGGG AG AAXGGGGTATAGGGGYAAG AGGGAA, where X and Y may be either A or G, and subject them to two-dimensional gel electrophoresis. In support of our hypothesis, the inserts exhibited facile transitions into the H form for X = Y = G, or X = Y = A, whereas the transition was much more difficult or impossible for the two non-palindromes (X = A, Y = G or X = G, Y = A). We present evidence that the H form is the structural basis for Sl-nuclease hypersensitivity.
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References
1. Lyamichev, V. I., Mirkin, S. M. & Frank-Kamenetskii, M. D. /. biomolec. Struct. Dyn. 3, 327-338 (1985). 2. Lyamichev, V. I., Mirkin, S. M. & Frank-Kamenetskii, M. D. J. biomolec. Struct. Dyn. 3, 667-669 (1986). 3. Lyamichev, V. I., Mirkin, S. M. & Frank-Kamenetskii, M. D. /. biomolec. Struct. Dyn. 5, 275-282 (1987). 4. Pulleyblank, D. E., Haniford, D. B. & Morgan, A. R. Cell 42, 271-280 (1985). 5. Schon, E., Evans, T., Welsh, J. & Efstratiadis, A. Cell 35, 837-848 (1983). 6. Evans, T., Schon, E., Gora-Maslak, G., Patterson, J. & Efstratiadis, A. Nucleic Acids Res. 12,8043-8058 (1984). 7. Siegfried, E., Thomas, G. H., Bond, U. M. & Elgin, S. C. R. Nucleic Acids Res. 14,9425-9444 (1986). 8. Mace, H. A. F., Pelham, H. R. B. & Travers, A. A. Nature 304, 555-557 (1983). 9. Goding, C. R. & Russell, W. C. Nucleic Acids Res. 11, 21-36 (1983). 10. Yu, Y.-T. & Manley, J. L. Cell 45, 743-751 (1986). 11. Kilpatrick, M. W., Torri, A., Kang, D. S., Engler, J. A. & Wells, R. D. /. biol. Chem. 261, 11350-11354 (1986). 12. Boles, T. C. & Hogan, M. E. Biochemistry 26, 367-376 (1987). 13. Shen, C.-K.J. Nucleic Acids Res. 11, 7899-7910 (1983). 14. McKoen, C., Schmidt, A. & de Crombrugghe, B. J. biol. Chem. 259, 6636-6640 (1984). 15. Finer, M. M., Fodor, E. J. B., Boedtker, H. & Doty, P. Proc. natn. Acad. Sci. U.S.A. 81, 1659-1663 (1984). 16. Vologodskii, A. V., Lukashin, A. V., Anshelevich, V. V. & Frank-Kamenetskii, M. D. Nucleic Acids Res. 6, 967-982(1979). 17. Vologodskii, A. V. & Frank-Kamenetskii, M. D. FEES Lett. 143, 257-260 (1982). 18. Lyamichev, V. I., Mirkin, S. M., Frank-Kamenetskii, M. D. & Cantor, C. R. Nucleic Acids Res. (in the press). 19. Howard, F. B., Frazer, J., Lippset, M. N. & Miles, H. T. Biochem. biophys. Res. Commun. 17,93-102 (1964). 20. Lee, J. S., Johnson, D. A. & Morgan, A. R. Nucleic Acids Res. 6, 3073-3091 (1979). 21. Soeda, E., Arrand, J. R., Smolar, N. & Griffin, B. E. Cell 17, 357-370 (1979). 22. Riley, D. E., Reeves, R. & Gartler, S. M. Nucleic Acids Res. 14, 9407-9423 (1986). 23. Ryder, K. et al. Cell 42, 539-548 (1985). 24. Ryder, K., Silver, S., DeLucia, A. L., Fanning, E. & Tegtmeyer, P. Cell 44, 719-725 (1986).
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Mirkin, S., Lyamichev, V., Drushlyak, K. et al. DNA H form requires a homopurine–homopyrimidine mirror repeat. Nature 330, 495–497 (1987). https://doi.org/10.1038/330495a0
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DOI: https://doi.org/10.1038/330495a0
