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首页> 外文期刊>Acta crystallographica.Section D. Biological crystallography >Low-resolution phase extension using wavelet analysis
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Low-resolution phase extension using wavelet analysis

机译：低分辨率使用小波扩展阶段分析

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摘要

A method to extend low-resolution phases is presented which uses histogram matching not only of the electron density, but also of histograms obtained from the different levels of detail provided by the wavelet transform of the electron density. Statistical values for the wavelet coefficients can be predicted and depend only on the resolution and solvent content. Therefore, new details can be added to an electron-density map by matching the values of the wavelet coefficients to those predicted for an increased resolution. The positions of the new details are also guided by the diffraction pattern. In this way, the resolution can be increased gradually; on a number of trial structures of different size, solvent percentage and space group, it has been possible to extend the phasing from 10 A to around 6-7 A.
机译：一个方法来延长低分辨率的阶段提出了利用直方图匹配不仅的电子密度,而且直方图获得不同层次的细节提供的电子的小波变换密度。可以预测,只取决于系数分辨率和溶剂的内容。新的细节可以添加到一个电子密度地图匹配小波的值系数的预测增加决议。也受衍射模式。方式,分辨率可以逐渐增加;在很多试验结构的不同大小、溶剂比例和空间群可能将逐步从10大约6 - 7。

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