APEX:在大肠杆菌中的自动蛋白质表达
Martyna Kasprzyk1, Michael A Herrera1,2, Giovanni Stracquadanio1
1School of Biological Sciences, The University of Edinburgh, Edinburgh EH9 3BF, U.K.
ACS synthetic biology
|September 2, 2025
概括
自动化蛋白质表达 (APEX) 通过使用Opentrons OT-2平台简化了大肠杆菌 (E. coli) 的重组蛋白质生成. 这种自动化系统提高了微生物蛋白质表达的高通量查效率和可重复性.
科学领域:
- 生物技术
- 分子生物学
- 微生物工程
背景情况:
- 大肠杆菌 (E. coli) 是重组蛋白质生产的主要宿主,原因是其快速生长和遗传处理能力.
- 现有的大肠杆菌蛋白质表达协议通常耗时,资源密集,容易出现操作错误,阻碍了高吞吐量应用.
- 需要自动化,可复制和用户友好的系统来有效地表达大肠杆菌中的异质蛋白质.
研究的目的:
- 开发和验证自动化蛋白质表达 (APEX) 管道,用于大肠杆菌的高吞吐量重组蛋白质生产.
- 利用Opentrons OT-2平台精确和可重复的微生物处理和蛋白质表达工作流程.
- 创建一个可定制和用户友好的系统,适应各种研究需求,而不需要编码专业知识.
主要方法:
- 开发使用Opentrons OT-2液体处理平台的APEX管道.
- 用于自动热冲击转换,选择性涂层,殖民地采样和微培养的APEX配置.
- 在APEX框架内的蛋白质表达诱导和下游处理步骤的自动化.
- 用2.7-17.7kb的等离子体和27-222kDa的蛋白质表达的自动化转换的验证.
主要成果:
- 在大肠杆菌中成功实施APEX,以实现高精度和可重复性的自动化蛋白质生产.
- 证明APEX能够处理各种等离子体大小,并表达各种蛋白质分子重量.
- APEX有效地自动化关键步骤,包括转换,涂层,殖民地选择和诱导,减少手工劳动和潜在的错误.
- 该系统需要对OT-2平台进行最小的硬件修改,使其具有成本效益和可访问性.
结论:
- 在大肠杆菌中提供强大的,自动化的高通量重组蛋白表达解决方案.
- 与传统方法相比,自动化管道显著提高了效率,可重复性和可访问性.
- APEX是一个模块化且易于使用的平台,研究人员不需要专门的编程技能就能轻松采用.
- 由于APEX的开源可用性,使其在科学界广泛使用和进一步发展.
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