托雷米芬与埃博拉病毒糖蛋白相互作用并使其不稳定
Yuguang Zhao1, Jingshan Ren1, Karl Harlos1
1Division of Structural Biology, University of Oxford, The Henry Wellcome Building for Genomic Medicine, Headington, Oxford, OX3 7BN, UK.
Nature
|July 1, 2016
概括
研究人员确定了埃博拉病毒与药物结合的糖蛋白 (GP) 的结构. 这揭示了托雷米芬和易布洛芬如何抑制病毒的进入,为开发埃博拉病毒病疗法提供了新的策略.
科学领域:
- 结构生物学
- 病毒学
- 药物发现
背景情况:
- 埃博拉病毒 (EBOV) 在没有批准的治疗方法的情况下导致致命的疫情.
- EBOV糖蛋白 (GP) 是病毒进入的媒介,也是主要的药物点.
研究的目的:
- 为了确定EBOVGP的无链结构.
- 阐明与托雷米芬和易布罗芬复合的EBOVGP的高分辨率结构.
- 了解这些药物的抑制机制.
主要方法:
- 射线晶体学
- 热转移测试
主要成果:
- 确定了EBOV GP的第一个非结合结构.
- 在GP1和GP2子单元之间确定了托雷米芬和易布洛芬的结合腔.
- 托雷米芬的结合显著破坏了GP的稳定性,而易布洛芬则显示出极小的效果.
结论:
- 药物与EBOV GP结合,通过破坏糖蛋白的稳定性来抑制病毒的进入.
- 这些发现为开发针对GP的新型抗EBOV疗法提供了结构基础.
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