通过 X 射线分析确定的嗜热菌噬菌体 G20C 假定门户蛋白的 12 倍对称性。

Lowri S Williams, Vladimir M Levdikov, Leonid Minakhin, Konstantin Severinov, Alfred A Antson
{"title":"通过 X 射线分析确定的嗜热菌噬菌体 G20C 假定门户蛋白的 12 倍对称性。","authors":"Lowri S Williams, Vladimir M Levdikov, Leonid Minakhin, Konstantin Severinov, Alfred A Antson","doi":"10.1107/S174430911302486X","DOIUrl":null,"url":null,"abstract":"<p><p>In tailed bacteriophages and several animal viruses, the portal protein forms the gateway through which viral DNA is translocated into the head structure during viral particle assembly. In the mature virion the portal protein exists as a dodecamer, while recombinant portal proteins from several phages, including SPP1 and CNPH82, have been shown to form 13-subunit assemblies. A putative portal protein from the thermostable bacteriophage G20C has been cloned, overexpressed and purified. Crystals of the protein diffracted to 2.1 Å resolution and belonged to space group P42(1)2, with unit-cell parameters a = b = 155.3, c = 115.4 Å. The unit-cell content and self-rotation function calculations indicate that the protein forms a circular 12-subunit assembly.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3818042/pdf/","citationCount":"0","resultStr":"{\"title\":\"12-Fold symmetry of the putative portal protein from the Thermus thermophilus bacteriophage G20C determined by X-ray analysis.\",\"authors\":\"Lowri S Williams, Vladimir M Levdikov, Leonid Minakhin, Konstantin Severinov, Alfred A Antson\",\"doi\":\"10.1107/S174430911302486X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>In tailed bacteriophages and several animal viruses, the portal protein forms the gateway through which viral DNA is translocated into the head structure during viral particle assembly. In the mature virion the portal protein exists as a dodecamer, while recombinant portal proteins from several phages, including SPP1 and CNPH82, have been shown to form 13-subunit assemblies. A putative portal protein from the thermostable bacteriophage G20C has been cloned, overexpressed and purified. Crystals of the protein diffracted to 2.1 Å resolution and belonged to space group P42(1)2, with unit-cell parameters a = b = 155.3, c = 115.4 Å. The unit-cell content and self-rotation function calculations indicate that the protein forms a circular 12-subunit assembly.</p>\",\"PeriodicalId\":7310,\"journal\":{\"name\":\"Acta Crystallographica Section F-structural Biology and Crystallization Communications\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2013-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3818042/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Acta Crystallographica Section F-structural Biology and Crystallization Communications\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1107/S174430911302486X\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2013/10/17 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1107/S174430911302486X","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2013/10/17 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

在有尾噬菌体和几种动物病毒中,入口蛋白是病毒DNA在病毒粒子组装过程中转运到头部结构的通道。在成熟的病毒粒子中,入口蛋白以十二聚体形式存在,而来自几种噬菌体(包括 SPP1 和 CNPH82)的重组入口蛋白已被证明能形成 13 个亚基的集合体。一种来自恒温噬菌体 G20C 的推定入口蛋白已被克隆、过表达和纯化。该蛋白质的晶体衍射分辨率为 2.1 Å,属于空间群 P42(1)2,单位胞参数为 a = b = 155.3,c = 115.4 Å。单位晶胞含量和自转函数计算表明,该蛋白质形成了一个环状的 12 个亚基组装体。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

摘要图片

摘要图片

摘要图片

查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
12-Fold symmetry of the putative portal protein from the Thermus thermophilus bacteriophage G20C determined by X-ray analysis.

In tailed bacteriophages and several animal viruses, the portal protein forms the gateway through which viral DNA is translocated into the head structure during viral particle assembly. In the mature virion the portal protein exists as a dodecamer, while recombinant portal proteins from several phages, including SPP1 and CNPH82, have been shown to form 13-subunit assemblies. A putative portal protein from the thermostable bacteriophage G20C has been cloned, overexpressed and purified. Crystals of the protein diffracted to 2.1 Å resolution and belonged to space group P42(1)2, with unit-cell parameters a = b = 155.3, c = 115.4 Å. The unit-cell content and self-rotation function calculations indicate that the protein forms a circular 12-subunit assembly.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
审稿时长
2-4 weeks
期刊介绍: Acta Crystallographica Section F is a rapid structural biology communications journal. Articles on any aspect of structural biology, including structures determined using high-throughput methods or from iterative studies such as those used in the pharmaceutical industry, are welcomed by the journal. The journal offers the option of open access, and all communications benefit from unlimited free use of colour illustrations and no page charges. Authors are encouraged to submit multimedia content for publication with their articles. Acta Cryst. F has a dedicated online tool called publBio that is designed to make the preparation and submission of articles easier for authors.
期刊最新文献
Crystal Structure of Thymidylate Synthase, Thy1, from Thermus thermophilus having an Extra C Terminal Domain The dimerization domain of human SFPQ in space group C2221 A revisited version of the apo structure of the ligand-binding domain of the human nuclear receptor RXR-ALPHA INFLUENZA VIRUS NEURAMINIDASE SUBTYPE N9 (TERN) with tetrabrachion (TB) domain stalk Glutathione reductase from Streptococcus pneumoniae
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1