自杀性囊蛋白酶的自抑制来自O'nyong'nyong病毒
Yuliya Chykunova1, Jacek Plewka2, Piotr Wilk3
1Virogenetics Laboratory of Virology, Malopolska Centre of Biotechnology, Jagiellonian University, Gronostajowa 7a, 30-387 Krakow, Poland; Department of Microbiology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland.
International journal of biological macromolecules
|February 14, 2024
概括
研究了O'nyong'nyong病毒 (ONNV) 囊蛋白 (CP) 的结构和活性. 印和二氧化显示出开发抗病毒疗法对抗阿尔法病毒的潜力.
科学领域:
- 病毒学 病毒学
- 结构生物学 结构生物学
- 药物发现 药物发现 药物发现
背景情况:
- 阿尔法病毒是严重的公共卫生威胁.
- 阿尔法病毒囊蛋白 (CP) 作为蛋白酶起作用,是潜在的治疗点.
- CP自蛋白溶解产生一个C端型酸盐,使酶失活,停止病毒复制.
研究的目的:
- 调查O'nyong'nyong病毒 (ONNV) CP. 的结构和功能.
- 评估ONNV CP活动并确定潜在的抑制策略.
主要方法:
- 高分辨率的晶体结构确定ONNV CP.
- 对ONNV CP.的酶活性测定.
- 使用印和二氧化进行抑制研究.
主要成果:
- 确定了ONNV CP的活性状态晶体结构.
- 印多尔证明了ONNV CP蛋白质分解活性的剂量依赖性降低.
- 非芳香的循环化合物,如二氧化,破坏了CP和病毒葡萄糖蛋白之间的相互作用.
结论:
- 托类型的类似物,如英多尔,显示出开发小分子抑制剂对ONNV.的发展有前途.
- 破坏糖蛋白结合口袋是抗病毒开发的可行策略.
- 结果提供了对ONNV生物学的洞察力,并指导了对关节性阿尔法病毒的抗病毒策略.
相关概念视频
02:28Leaky Scanning
5.1K
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...
5.1K
01:29Immune Response Against Viral Pathogens
782
The immune system's response to viral infections is a complex and coordinated process involving natural killer (NK) cells, T cell-mediated responses, and antibody-mediated responses.
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
NK Cells
NK cells are a crucial part of our innate immune system, acting as the first line of defense against viral infections. These cells can recognize and kill infected cells without prior exposure to the virus, effectively slowing down the spread of infection. Additionally, NK cells produce proinflammatory...
782