Molecular Replacement Method

Molecular Replacement Method
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分子置换法

DOI:
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发表时间:
1980
期刊:
影响因子:
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通讯作者:
M. Rossman
M. Rossman
中科院分区:
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文献类型:
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作者:
P. Argos;M. Rossman

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术语“分子置换”涵盖多种旨在利用分子、分子亚基或分子片段在多于一种晶体学环境中的出现来达到相细化目的的技术。自然界构建块的有限尺寸以及它们聚集成具有闭点对称性的分子的必要性(Crick和Watson,1956;Monod等,1965)提供了该主题及其在大分子中的应用的基础。例如,特定的化合物可以被诱导以不同的形式结晶,或者给定的分子可能由几个相同的亚基组成。
The term molecular replacement encompasses a variety of techniques designed to utilize the occurrence of a molecule, molecular subunit, or molecular fragment in more than one crystallographic environment for the purpose of phase refinement. The limited size of nature’s building blocks and the necessity of their aggregation into molecules with closed point symmetries (Crick and Watson, 1956; Monod et al., 1965) provide the basis of the subject and its application to macromolecules. For example, a particular compound may be induced to crystallize in different forms, or a given molecule might be composed of several identical subunits.