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首页> 外文期刊>Acta crystallographica.Section D. Biological crystallography >De-icing: recovery of diffraction intensities in the presence of ice rings.
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De-icing: recovery of diffraction intensities in the presence of ice rings.

机译：除冰:复苏的衍射强度冰环的存在。

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摘要

Macromolecular structures are routinely determined at cryotemperatures using samples flash-cooled in the presence of cryoprotectants. However, sometimes the best diffraction is obtained under conditions where ice formation is not completely ablated, with the result that characteristic ice rings are superimposed on the macromolecular diffraction. In data processing, the reflections that are most affected by the ice rings are usually excluded. Here, an alternative approach of subtracting the ice diffraction is tested. High completeness can be retained with little adverse effect upon the quality of the integrated data. This offers an alternate strategy when high levels of cryoprotectant lead to loss of crystal quality.
机译：大分子结构通常确定在cryotemperatures flash-cooled在使用样品不同种类的存在。有时最好的,得到了衍射冰情况并非完全形成冰熔化,结果特征环是叠加在大分子衍射。受影响最严重的冰环通常被排除在外。减去冰衍射测试。高完整性可以保留对集成的质量不良的影响数据。水平的冷冻保护剂导致晶体的损失质量。

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