一种多重复合的细菌双混合体,用于快速表征蛋白质-蛋白质相互作用和代蛋白质设计
W Clifford Boldridge1, Ajasja Ljubetič2,3, Hwangbeom Kim1,4
1Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.
Nature communications
|August 2, 2023
概括
科学家们开发了一种新方法,可以快速测试成千上万种蛋白质相互作用. 这使得能够创建大量高度特异的,直角的蛋白质对,用于各种生物应用.
科学领域:
- 分子生物学分子生物学
- 生物化学 生物化学
- 合成生物学 合成生物学
背景情况:
- 蛋白与蛋白相互作用 (PPI) 是生物过程的基础.
- 卷曲-卷曲是研究PPI特异性的模型系统.
- 由于预测和可扩展性问题,设计直角的线圈-线圈对具有挑战性.
研究的目的:
- 开发一种可扩展的方法来设计和测试正交蛋白-蛋白相互作用.
- 为算法训练创建一个大型的线圈互动数据集.
- 为了确定一个完整的直角线圈-线圈对的集合.
主要方法:
- 开发了下一代细菌双混合 (NGB2H) 方法,用于高通量PPI查.
- 设计,合成和测试了成千上万种合成线圈-线圈变体.
- 使用下一代测序来定量读取相互作用.
- 使用实验数据训练了一种新的卷轴-卷轴评分算法 (iCipa).
主要成果:
- 测试了超过8,000个PPI以生成训练数据集.
- 确定了迄今为止最大的一组直角螺旋线圈,其中有15个目标相互作用.
- 开发了一个更准确的卷轴-卷轴评分算法 (iCipa).
- 标志着近18000个新的PPI.
结论:
- 通过NGB2H方法,可以快速探索和设计正交PPI.
- 这项工作为设计特定蛋白质相互作用提供了一个强大的平台.
- 这些发现推动了合成生物系统和药物发现目标的设计.
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