Protein crystallography using capillary-focused X-rays
نویسندگان
چکیده
منابع مشابه
Softer and soft X-rays in macromolecular crystallography.
The utilization and the potential of softer and soft X-rays in macromolecular crystallography as well as the challenges associated with the corresponding diffraction experiments and their possible remedies are reviewed.
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Fig. 1. Mn XANES and EXAFS of single crystals of photosystem II as a function of x-ray dose. As the x-ray dose increases, Mn in PS II normally present as Mn4(III2,IV2) is reduced to Mn(II) as seen by the changes in XANES spectra (left bottom). The changes in the corresponding EXAFS spectra (right) show that the three Fourier peaks characteristic of Mn-bridging-oxo, Mn-terminal, and Mn-Mn/Ca int...
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In protein crystallography, observed diffraction intensities must be corrected for background radiation due to scatter from air and scatter and absorption by capillary., crystal and mother liquor. A systematic study shows that a major contribution to background intensity is air scatter arising from the air intercepted by the direct X-ray beam as 'seen' by the receiving-counter aperture. As a re...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1996
ISSN: 0108-7673
DOI: 10.1107/s0108767396098558