From an affine extended icosahedral group towards a toolkit for viral architecture.

IF 1.8 4区材料科学

Acta Crystallographica Section A Pub Date : 2013-03-01 Epub Date: 2013-01-17 DOI:10.1107/S0108767312047162

A Janner

引用次数: 10

Abstract

The affine extensions (there are 55 different ones) of the icosahedral group developed by T. Keef and R. Twarock of the York Centre for Complex Systems Analysis of the University of York [see in particular Keef et al. (2013). Acta Cryst. A69, 140-150], and applied to the investigation of the architecture of a number of icosahedral viruses, are here considered in the framework of molecular crystallography. The basic ideas of such molecular description involve positions with rational indices which approximate backbone positions in viral polypeptide and RNA chains. The test case of the Pariacoto virus suggests that the best-fit algorithm used in the York group's approach should be adapted to a more specific toolkit suited for the investigation of the architecture of icosahedral viruses. Typical problems which could be solved by means of such a toolkit are exemplified and put in the perspective of viral properties.

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从仿射扩展二十面体基团到病毒结构工具包。

由约克大学约克复杂系统分析中心的T. Keef和R. Twarock开发的二十面体群的仿射扩展(有55种不同的扩展)[特别参见Keef et al.(2013)]。Acta结晶。[A69, 140-150]，并应用于研究一些二十面体病毒的结构，本文在分子晶体学的框架内考虑。这种分子描述的基本思想涉及具有合理指数的位置，这些位置近似于病毒多肽和RNA链中的骨干位置。Pariacoto病毒的测试案例表明，约克小组方法中使用的最佳拟合算法应该适应于更适合研究二十面体病毒结构的特定工具包。典型的问题，可以解决的手段，这样一个工具包的例子，并把病毒属性的角度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Crystallographica Section A 化学-晶体学

自引率

11.10%

发文量

审稿时长

3 months

期刊介绍： Acta Crystallographica Section A: Foundations and Advances publishes articles reporting advances in the theory and practice of all areas of crystallography in the broadest sense. As well as traditional crystallography, this includes nanocrystals, metacrystals, amorphous materials, quasicrystals, synchrotron and XFEL studies, coherent scattering, diffraction imaging, time-resolved studies and the structure of strain and defects in materials. The journal has two parts, a rapid-publication Advances section and the traditional Foundations section. Articles for the Advances section are of particularly high value and impact. They receive expedited treatment and may be highlighted by an accompanying scientific commentary article and a press release. Further details are given in the November 2013 Editorial. The central themes of the journal are, on the one hand, experimental and theoretical studies of the properties and arrangements of atoms, ions and molecules in condensed matter, periodic, quasiperiodic or amorphous, ideal or real, and, on the other, the theoretical and experimental aspects of the various methods to determine these properties and arrangements.