Abstract
SCANNING tunnelling microscopy (STM) has been used to map the surface topography of inorganic materials at the atomic level, and is potentially one of the most powerful techniques for probing biomolecular structure1–3. Recent STM studies of calf thymus DNA4,5and poly(rA) · poly(rU)5 have shown that the helical pitch and periodic alternation of major and minor grooves can be visualized and reliably measured. Here we present the first STM images of poly(dG-me5d) · poly(dG-me5dC) in the Z-form. Both the general appearance of the fibres and measurements of helical parameters are in good agreement with models derived from X-ray diffraction6–4.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
Receive 51 print issues and online access
$199.00 per year
only $3.90 per issue
Buy this article
- Purchase on SpringerLink
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Binnig, G. Rohrer, H., Gerber, C. & Weibel, E. Phys. Rev. Lett. 50, 120–123 (1983).
Golovchenko, J. A. Science 232, 42–47 (1986).
Hansma, P. K. Elings, V. B., Marti, O. & Bracker, C. E. Science 242, 209–216 (1988).
Beebe, T. P., Jr et al. Science 243, 370–372 (1989).
Lee, G., Arscott, P. G. Bloomfield, V. A. & Evans, D. F. Science 244, 475–477 (1989).
Fujii, S., Wang, A. H.-J., van der Marel, G., van Boom, J. H. & Rich, A. Nucleic Acids Res. 10, 7879–7892 (1982).
Behe, M. & Felsenfeld, G. Proc. natn. Acad. Sci. U.S.A. 78, 1619–1623 (1981).
Drew, H., Takano, T., Tanaka, S., Itakura, K. & Dickerson, R. E. Nature 286, 567–573 (1980).
Lang, D., Steely, H. T., Jr, Kao, C.-Y. & Ktistakis, N. T. Biochim. biophys. Acta 910, 271–281 (1987).
Pullman, A. & Pullman, B. Q. Rev. Biophys. 14, 289–380 (1981).
Saenger, W. Principles of Nucleic Acid Structure (Springer, New York, 1984).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Arscott, P., Lee, G., Bloomfield, V. et al. Scanning tunnelling microscopy of Z-DNA. Nature 339, 484–486 (1989). https://doi.org/10.1038/339484a0
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/339484a0
This article is cited by
-
Integrated solid-state nanopore devices for third generation DNA sequencing
Science China Technological Sciences (2014)
-
Effects of Metal Ions on Conductivity and Structure of Single DNA Molecule in Different Environmental Conditions
Nanoscale Research Letters (2010)
-
Reconsideration of some results for linear and circular DNA
Journal of Biosciences (1995)
-
Protein images obtained by STM, AFM and TEM
Nature (1992)