Visualizing the Nucleotide Addition Cycle of Viral RNA-Dependent RNA Polymerase.

Visualizing the Nucleotide Addition Cycle of Viral RNA-Dependent RNA Polymerase.
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DOI:
10.3390/v10010024
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发表时间:
2018-01-04
期刊:
Viruses
影响因子:
--
通讯作者:
Gong P
Gong P
中科院分区:
其他
文献类型:
--
作者:
Wu J;Gong P

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病毒RNA依赖性RNA聚合酶(viral RNA-dependent RNA polymerases,RdRPs)是一类具有独特结构和催化机制的核酸聚合酶。近年来,许多病毒RdRP晶体结构已经提高了对这些分子机器的理解,特别是它们如何按照RNA模板的指导进行每个核苷酸添加循环(NAC)。这篇评论的重点是通过结构模型的静态图片,一个用户友好的基于软件的组装的结构模型,和两个视频说明的NAC中的关键构象变化相结合的病毒RdRP NAC机制的视觉介绍。
Viral RNA-dependent RNA polymerases (RdRPs) are a class of nucleic acid polymerases bearing unique features from global architecture to catalytic mechanisms. In recent years, numerous viral RdRP crystal structures have improved the understanding of these molecular machines, in particular, for how they carry out each nucleotide addition cycle (NAC) as directed by the RNA template. This review focuses on a visual introduction of viral RdRP NAC mechanisms through a combination of static pictures of structural models, a user-friendly software-based assembly of the structural models, and two videos illustrating key conformational changes in the NAC.
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