小麦线条花叶病毒——一种马铃薯Y病毒属病毒的结构参数

Wheat streak mosaic virus--structural parameters for a Potyvirus.

作者信息

Parker Lauren, Kendall Amy, Berger P H, Shiel P J, Stubbs Gerald

机构信息

Center for Structural Biology, Vanderbilt University, Nashville, TN 37232, USA.

出版信息

Virology. 2005 Sep 15;340(1):64-9. doi: 10.1016/j.virol.2005.06.022.

DOI:10.1016/j.virol.2005.06.022

PMID:16026812

Abstract

Wheat streak mosaic virus is a Tritimovirus, a member of the Potyviridae family, which includes the very large Potyvirus genus. We have examined wheat streak mosaic virus by electron microscopy and fiber diffraction from partially oriented sols, and analyzed the results to estimate the symmetry and structural parameters of the viral helix. The virions have an apparent radius of 63 +/- 5 A. The viral helix has a pitch of 33.4 A +/- 0.6 A. There appear to be 6.9 subunits per turn of the helix, although we cannot completely eliminate values of 5.9 or 7.9 for this parameter.

摘要

小麦线条花叶病毒是一种小麦线条花叶病毒属病毒，属于马铃薯Y病毒科，该科包含非常庞大的马铃薯Y病毒属。我们通过电子显微镜和对部分定向溶胶的纤维衍射研究了小麦线条花叶病毒，并对结果进行分析以估计病毒螺旋的对称性和结构参数。病毒粒子的表观半径为63±5埃。病毒螺旋的螺距为33.4埃±0.6埃。每圈螺旋似乎有6.9个亚基，不过我们无法完全排除该参数为5.9或7.9的可能性。