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首页> 外文期刊>Acta crystallographica. Section D, Structural biology. >Approaches to ab initio ab initio molecular replacement of α‐helical transmembrane proteins
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Approaches to ab initio ab initio molecular replacement of α‐helical transmembrane proteins

机译:从头开始从头计算分子的方法更换α螺旋跨膜蛋白

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摘要

α‐Helical transmembrane proteins are a ubiquitous and important class of proteins, but present difficulties for crystallographic structure solution. Here, the effectiveness of the AMPLE molecular replacement pipeline in solving α‐helical transmembrane‐protein structures is assessed using a small library of eight ideal helices, as well as search models derived from ab initio models generated both with and without evolutionary contact information. The ideal helices prove to be surprisingly effective at solving higher resolution structures, but ab initio ‐derived search models are able to solve structures that could not be solved with the ideal helices. The addition of evolutionary contact information results in a marked improvement in the modelling and makes additional solutions possible.
机译:α螺旋跨膜蛋白是无处不在的和蛋白质的重要类,但现在困难的晶体结构解决方案。分子置换管道在解决地理α螺旋跨膜蛋白结构评估使用小型图书馆的八个理想螺旋,以及来自ab搜索模型在卷首模型生成都有或没有进化的联系信息。螺旋被证明是令人惊讶的有效的解决高分辨率结构,但ab在卷首派生搜索模型能够解决结构不能解决的理想的螺旋线。联系信息导致显著改善的造型,使额外的可能的解决方案。

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