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首页> 外文期刊>Acta crystallographica.Section D. Biological crystallography >Flat bulk-solvent model: obtaining optimal parameters.
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Flat bulk-solvent model: obtaining optimal parameters.

机译:平散装溶剂模型:获取最优参数。

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摘要

A bulk-solvent correction is regularly used for macromolecular refinement. The flat model of the bulk solvent is considered to be the most reliable. It is shown that the standard procedure does not always result in the optimal values of the bulk-solvent correction parameters. A method to obtain the best values for parameters k(sol) and B(sol) of the flat-solvent model is discussed. The values of correctly determined parameters for crystallographic structures deposited in the Protein Data Bank are clustered around k(sol) = 0.35 e A(-3) and B(sol) = 46 A(2), which have a reasonable physical meaning. Such a distribution allows the use of these mean values of solvent parameters for many practical applications when refined parameters cannot be obtained, especially when an atomic model in the unit cell is not yet known.
机译:经常用于散装溶剂校正大分子提纯。大部分溶剂被认为是最多的可靠的。并不总是导致最优值的散装溶剂校正参数。获得最佳的参数值k (sol)和B (sol) flat-solvent模型进行了讨论。晶体结构参数存入蛋白质数据银行聚集约0.35 k (sol) = e(3)和B (sol) = 46(2),有一个合理的物理意义。这种分布允许使用这些的意思许多实用的溶剂的参数值应用程序不能当精炼参数在获得,特别是当一个原子模型单位细胞尚不得而知。

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