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模块化和整合性活动报告器增强了酵母ER的生物化学研究
Samantha G Martinusen1, Ethan W Slaton1, Sage E Nelson1
1Department of Chemical Engineering, University of Florida, Gainesville, 32611, USA.
Protein engineering, design & selection : PEDS
|May 2, 2024
概括
我们使用整合性塑增强了酵母细胞内质网膜封存和选 (YESS) 系统,用于对后翻译修饰酶 (PTM酶) 的强大的高通量生物化学研究. 这种模块化框架可以改善酵母中的蛋白质表达和蛋白酶活性测定.
科学领域:
- 生物化学 生物化学
- 分子生物学分子生物学
- 酵母遗传学 酵母遗传学
背景情况:
- 酵母体内质网膜封存和选 (YESS) 系统有助于对转化后修饰酶 (PTM酶) 的高通量生物化学研究.
- 现有的YESS系统可以进行分析,对PTM酶活性和基质特异性的工程,以及发现抗抑制剂突变物.
研究的目的:
- 通过开发基于染色体的研究的综合系统来扩大YESS的能力.
- 为了实现统一的蛋白质表达和蛋白酶活动,在独立的位置使用集成报告器.
- 用病毒蛋白酶评估新系统的性能.
主要方法:
- 将YESS的功能组件转移到集成性等离子体中.
- 为统一的蛋白质表达和蛋白酶活动配置系统.
- 在两个独立的染色体位点集成活动报告员.
- 使用烟草蚀刻病毒蛋白酶 (TEVp) 和3 - 化学素样蛋白酶 (3CLpro) 进行整合报告者的特征.
主要成果:
- 在YESS整合系统中,在各种配置中展示了统一的蛋白质表达和蛋白酶活动.
- 活动记者在两个独立的地点成功集成.
- 鉴定发现了强大的性能指标,包括差异系数,信号噪声比和病毒蛋白酶的折叠激活.
- 该系统允许在整合性和中心性等离子体之间进行分割.
结论:
- 建立了一个基于染色体的模块化YESS框架,增强了酵母中的高通量PTM酶测定.
- 综合系统为生物化学研究提供了一个强大的多功能平台.
- 这一进步有助于在原生染色体环境中对PTM酶功能和工程进行严格的研究.
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