核酸 (PNAs) 控制SARS-CoV-2的功能框架转移刺激元素谷 PNA-RNA-PNA三重组形成
Md Motiar Rahman1, Christopher A Ryan1, Brandon R Tessier1
1Department of Chemistry, Binghamton University, The State University of New York, Binghamton, NY, 13902, United States.
Heliyon
|July 29, 2024
概括
酸核酸向SARS-CoV-2的框架转移刺激元件 (FSE) 显示出作为抗病毒药物的潜力. 反意义PNAs在抑制病毒蛋白转化和移方面出乎意料地有效.
科学领域:
- 分子生物学分子生物学
- 病毒学 病毒学
- 药物发现 药物发现 药物发现
背景情况:
- SARS-CoV-2基因组包含高度结构化的区域,包括一个具有关键RNA伪结的框架转移刺激元件 (FSE).
- 这种FSE是抗病毒药物开发的有希望的目标,因为它在病毒复制中起着至关重要的作用.
研究的目的:
- 调查核酸 (PNA) 在抑制SARS-CoV-2蛋白转化和框架转移方面的疗效.
- 为了比较针对FSERNA不同区域的PNAs的有效性,包括干部1,干部2,干部3和滑动部位.
主要方法:
- 使用无细胞双化酶试验来测量蛋白质翻译和框架转移抑制.
- 合成并测试了各种PNAs,包括简单的反意义PNAs和PNA尾巴,针对FSERNA中的特定结构.
主要成果:
- 结合FSERNA2干的PNAs在抑制蛋白质翻译和框架转移方面最有效.
- 简单的反意义PNA显示出比PNA尾部具更强的抑制,与基于热稳定的预期相反.
- 阴离子和反意义PNAs的组合出乎意料地以一种非特定的序列方式增强了移抑制.
结论:
- 反意义PNAs显示出针对SARS-CoV-2伪结等结构化RNA的希望,但挑战仍然存在.
- 虽然三倍体形成的PNAs提供了RNA识别的潜力,但优化与阴离子修饰的结合亲和力至关重要,以保持序列特异性.
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