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Science 31 March 1989:
Vol. 243. no. 4899, pp. 1708 - 1711
DOI: 10.1126/science.2928803
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Articles

Science, Vol 243, Issue 4899, 1708-1711
Copyright © 1989 by American Association for the Advancement of Science

articles

Scanning tunneling microscopy of uncoated recA-DNA complexes

M Amrein, R Durr, A Stasiak, H Gross, and G Travaglini

Institute of Cell Biology, Swiss Federal Institute of Technology, Zurich, Switzerland.

Uncoated recA-DNA complexes were imaged with the scanning tunneling microscope (STM). The images, which reveal the right-handed helical structure of the complexes with subunits clearly resolved, are comparable in quality to STM images of metal-coated specimens. Possible conduction mechanisms that allow STM imaging of biological macromolecules are discussed.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Graphite: a mimic for DNA and other biomolecules in scanning tunneling microscope studies.
C. Clemmer and T. Beebe Jr (1991)
Science 251, 640-642
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