人类乳头瘤病毒E2蛋白质完整的交换活化域的结构
A A Antson1, J E Burns, O V Moroz
1Department of Chemistry, University of York, UK.
Nature
|February 29, 2000
概括
人类乳头瘤病毒 (HPV) E2蛋白控制病毒转录和复制. 它的氨基末端域 (E2NT) 形成了二元体,对于与转录因子相互作用和启动病毒DNA转录至关重要.
科学领域:
- 分子生物学分子生物学
- 结构生物学 结构生物学
- 病毒学 病毒学
背景情况:
- 乳头瘤病毒导致,在一些高风险类型中,导致瘤.
- 乳头瘤病毒E2蛋白调节病毒基因组的转录和复制.
- E2蛋白的功能是由其氨基终端 (E2NT) 和DNA结合域控制的.
研究的目的:
- 为了确定人类乳头瘤病毒16 (HPV16) 的完整E2NT模块的晶体结构.
- 研究E2NT在病毒转录调节中的作用的结构基础.
主要方法:
- 确定HPV16 E2NT模块的晶体结构.
- 在晶体和溶液中分析E2NT二分化.
主要成果:
- 完整的HPV16的E2NT模块形成了一个稳定的二元体.
- 关键的交换激活氨基酸位于二聚体接口.
- 建议进行二分化以促进与转录因子的相互作用.
结论:
- HPV16 E2NT的二度结构对于其在转录中的功能至关重要.
- 迪默的形成可以稳定DNA循环,有助于转录因子的招募.
- 这种结构性洞察对于理解高风险HPV病原和开发抗病毒药物至关重要.
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