一个全性转录因子的高度多重设计,以感知新的配体
Kyle K Nishikawa1, Jackie Chen1, Justin F Acheson1
1Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA.
Nature communications
|November 20, 2024
概括
研究人员开发了Sensor-seq,这是一个高通量平台,用于为新型分子设计全转录因子 (aTF) 生物传感器. 这种方法成功地为各种非原生配体创建了生物传感器,使分子检测中的新应用成为可能.
科学领域:
- 合成生物学 合成生物学
- 分子生物学分子生物学
- 生物技术是生物技术.
背景情况:
- 体转录因子 (aTFs) 对于通过小分子诱导的构造变化来调节基因至关重要.
- 设计aTF作为新分子的生物传感器是具有挑战性的,因为结合结残留突变会破坏全功能.
研究的目的:
- 开发一个高通量平台,Sensor-seq,用于设计和识别新型全转录因子 (aTF) 生物传感器.
- 创建能够检测非原生小分子的生物传感器,扩大 aTFs 的实用性超出它们的自然连接体.
主要方法:
- 选了17,737个TtgR全转录因子变异的库.
- 使用六种非原生配体 (tamoxifen衍生品,氨酸,氨酸) 和两种原生配体 (naringenin,phloretin) 进行查.
- 采用结构分析来理解设计生物传感器中的联体特异相互作用.
主要成果:
- 对所有测试的非原生和原生配体进行功能性aTF生物传感器的识别.
- 在设计的生物传感器中展示高动态范围和多样化的特异性配置.
- 阐明控制纳尔特雷特异性的形状-补充性氨酸-芳香相互作用.
- 开发用于纳尔特雷和因的无细胞检测系统.
结论:
- 传感器-seq为设计新型aTF生物传感器提供了一种快速且可扩展的方法.
- 该平台克服了自然生物传感器的局限性,可以检测各种非原生分子.
- 这项工作扩大了生物传感器开发和分子检测应用的工具包.
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