Improvements of the Hierarchical Approach for Predicting RNA Tertiary Structure
Improvements of the Hierarchical Approach for Predicting RNA Tertiary Structure
复制标题
预测 RNA 三级结构的分层方法的改进
DOI:
10.1080/07391102.2011.10508609
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发表时间:
2011-04
影响因子:
4.4
通讯作者:
中科院分区:
文献类型:
--
作者:
Abstract Computational prediction of RNA tertiary structures is a significant challenge, especially for longer RNA and pseudoknots. At present it is still difficult to do this by pure all-atom molecular dynamics simulation. One of possible approaches is through hierarchical steps: from sequence to secondary structure and then to tertiary structure. Here we present improvements of two key steps of this approach, the manual adjustment of atom clashes and bond stretches and molecular dynamics refinement. We provide an energy function to find the locations of atom clashes and bond stretches and to guide their manual adjustment and a new scheme of molecular dynamics refinement using a tested combination of solvent model and the ff98 Amber force field suitable for RNA. We predicted with higher accuracy the tertiary structures of nine typical RNA molecules of lengths from 12 to 52, including hairpins, duplex helices and pseudoknots.
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DOI:
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发表时间:
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期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
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