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Determination of Macromolecular Structures from Anomalous Diffraction of Synchrotron Radiation

Hendrickson, Wayne A.·1991·Science

Abstract

Resonance between beams of x-ray waves and electronic transitions from bound atomic orbitals leads to a phenomenon known as anomalous scattering. This effect can be exploited in x-ray crystallographic studies on biological macromolecules by making diffraction measurements at selected wavelengths associated with a particular resonant transition. In this manner the problem of determining the three-dimensional structure of thousands of atoms is reduced to that of initially solving for a few anomalous scattering centers that can then be used as a reference for developing the entire structure. This method of multiwavelength anomalous diffraction has now been applied in a number of structure determinations. Optimal experiments require appropriate synchrotron instrumentation, careful experimental design, and sophisticated analytical procedures. There are rich opportunities for future applications.

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Metadata

Authors
Hendrickson, W. A.
Venue
Science
Published
1991-10-04
Volume
254
Issue
5028
Pages
51-58
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W1969156185
Cited by
1,129
References
0
FWCI
11.65
Type
journal article
Language
en
Open access
closed

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