Mapping the conformations of biological assemblies

Details Mapping the conformations of biological assemblies Mapping the conformations of biological assemblies

2009-09-29

arxiv.org/abs/0909.5404v2

Physics

Biological Physics

14 pages, 6 figures

Scientific paper

Mapping conformational heterogeneity of macromolecules presents a formidable challenge to X-ray crystallography and cryo-electron microscopy, which often presume its absence. This has severely limited our knowledge of the conformations assumed by biological systems and their role in biological function, even though they are known to be important. We propose a new approach to determining to high resolution the three-dimensional conformations of biological entities such as molecules, macromolecular assemblies, and ultimately cells, with existing and emerging experimental techniques. This approach may also enable one to circumvent current limits due to radiation damage and solution purification.

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