›› 2013, Vol. 40 ›› Issue (6): 85-89.

• 生物技术 • 上一篇    下一篇

绵羊痘病毒E3L蛋白N端结构和功能预测

卢昌1, 吴国华1, 颜新敏1, 赵志荀1, 于少雄1, 叶奕优2, 朱海霞1, 李健1, 张强1   

  1. 1. 中国农业科学院兰州兽医研究所, 家畜疾病病原生物学国家重点实验室, 甘肃兰州 730046;
    2. 深圳出入境检验检疫局动植物检验检疫技术中心, 广东深圳 518045
  • 收稿日期:2012-11-16 出版日期:2013-06-20 发布日期:2013-06-20
  • 通讯作者: 张强 E-mail:qzhang1616@sohu.com
  • 作者简介:卢昌(1986-),男,陕西人,硕士生,研究方向:动物传染病及分子生物学。
  • 基金资助:
    国家自然科学基金项目(31001056、31101802、31201892);国家"十二五"高技术研究发展计划(863)项目(2012AA101304);甘肃省自然科学基金项目(1208RJZA101)。

Function Prediction and Structure Analysis of N-terminal of E3L Protein in Sheeppoxvirus

LU Chang1, WU Guo-hua1, YAN Xin-min1, ZHAO Zhi-xun1, YU Shao-xiong1, YE Yi-you2, ZHU Hai-xia1, LI Jian1, ZHANG Qiang1   

  1. 1. State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China;
    2. Animal and Plant Inspection and Quarantine Technology Center, Shenzhen Entry-exit Inspection and Quarantine Bureau, Shenzhen 518045, China
  • Received:2012-11-16 Online:2013-06-20 Published:2013-06-20

摘要: E3L蛋白是痘病毒的一类早期表达的非结构蛋白,其主要抑制宿主的先天性免疫,与病毒的致病力和宿主嗜性有关,但是目前对绵羊痘病毒E3L蛋白的研究较少。作者运用生物信息学的方法,用已知的E3L蛋白N端结构作为模板,并使用WebLab、SWISS-MODEL和ExPASY等在线软件预测其功能结构域和二、三级结构及氨基酸组成,对其作为Zα潜在家族成员的真实性、可靠性作出理论上的判断。分析结果表明,绵羊痘病毒E3L蛋白N端结构符合Zα家族蛋白的一些基本的结构特征,具有其他E3L蛋白N端相同的功能结构,为该蛋白质N端结构属于Zα蛋白家族提供了一些理论依据。

关键词: 绵羊痘病毒; E3L蛋白; Z-DNA; 生物信息学

Abstract: E3L protein is a kind of nonstructural protein of poxvirus expressed in early time. It can inhibit immunity of host cells and be ralated with virus virulence and tropism. However, E3L protein in sheeppoxvirus (SPPV) is rarely understood. We have predicted N-terminal of E3L protein in SPPV by bioinformatics methods as well as using the N-terminal of E3L proteins which have been predicted. And then the structural domains, secondary structures, tertiary structures and amino acid compositions of the above proteins have also been predicted using these online programs, such as WebLab, SWISS-MODEL and ExPASY tools. The bioinformatical analysis results show that the protein and other Zα famliy proteins have the same basic structural characteristics and structural domains, implying that the N-terminal of E3L protein in SPPV might belong to Zα famliy.

Key words: sheeppoxvirus; E3L protein; Z-DNA; bioinformatics

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