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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > March  >
In the Classroom
Revealing the Backbone Structure of B-DNA from Laser Optical Simulations of Its X-ray Diffraction Diagram
A. A. Lucas, Ph. Lambin, R. Mairesse, and M. Mathot
Facultés Universitaires Notre-Dame de la Paix, Département de Physique, Faculté des Sciences, rue de Bruxelles, 61, B5000 Namur, Belgium
Cover
March 1999
Vol. 76 No. 3
p. 378
Abstract
A visible laser and a set of nine specially designed diffraction gratings held on a single slide have been used to build up progressively a classroom optical simulation of the diffraction of X-rays by a B-DNA fiber. The nine optical transforms allow understanding, without recourse to helical diffraction theory, of how the prominent features of the observed diffraction pattern arise from each of the structural parameters of the DNA backbone.
More Information
*  Citation
 Lucas, A. A.; Lambin, Ph.; Mairesse, R.; Mathot, M. J. Chem. Educ. 1999 76 378.
*  Keywords
 Demonstrations; Nucleic Acids / DNA / RNA; Teaching / Learning Aids; Crystallography / Crystal Growth; X-ray Crystallography
*  History
 Created:
Last Updated:		 June 15, 1999
June 22, 2005
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