开发一个全球选系统,以通过裂变酵母的发光补充来检测蛋白质与蛋白质相互作用
Fereshteh Azadeh1,2,3, Atsushi Hashimoto2,4, Shinichi Nishimura5
1Laboratory of Microbiology, Department of Biotechnology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan.
Scientific reports
|January 12, 2026
概括
我们开发了一种敏感的NanoBiT试验,用于检测裂变酵母中的蛋白质与蛋白质相互作用 (PPI). 该平台通过实现双N和C终端标记来增强交互组映射,以实现强大的PPI检测.
科学领域:
- 分子生物学分子生物学
- 酵母遗传学 酵母遗传学
- 生物化学 生化学
背景情况:
- 了解蛋白质与蛋白质相互作用 (PPI) 对于阐明生物过程至关重要.
- 目前用于绘制蛋白质互动体的现有方法往往不完整.
- 裂变酵母 (Schizosaccharomyces pombe) 是细胞研究的一个关键模型生物.
研究的目的:
- 提出一种基于NanoBiT的敏感蛋白质补充试验,用于在裂变酵母中强大的PPI检测.
- 通过启用双 N 和 C 终端标签,克服了标签位置依赖性失活的局限性.
- 扩大互动原子发现的范围,并促进未来的蛋白质化合物相互作用研究.
主要方法:
- 开发了一种双分子纳米BiT测定方法,使用SmBiT和LgBiTNanoLuc碎片与蛋白质合作伙伴融合.
- 构建了一个全面的裂变酵母ORFeome库,使用SmBiT标记的猎物蛋白.
- 在图书馆建设和单复制整体的高通量选中采用同源重组.
主要成果:
- 建立了一个敏感且强大的平台,用于检测Schizosaccharomyces pombe中的蛋白-蛋白相互作用.
- 同时表达N-和C-终端标记的诱蛋白提高了检测灵敏度.
- 高通量选确定了以前无法检测到的通用转录延长因子Tfs1.1.的相互作用体.
结论:
- 纳米BiT平台显著提高了绘制裂变酵母互动组图的能力.
- 该系统为发现新型蛋白质与蛋白质相互作用提供了一种多功能工具.
- 这种方法对未来对蛋白质化合物相互作用的研究具有前途.
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