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Organisms are capable of detecting and fixing nucleotide mismatches that occur during DNA replication. This sophisticated process requires identifying the new strand and replacing the erroneous bases with correct nucleotides. Mismatch repair is coordinated by many proteins in both prokaryotes and eukaryotes.
The Mutator Protein Family Plays a Key Role in DNA Mismatch Repair
The human genome has more than 3 billion base pairs of DNA per cell. Prior to cell division, that vast amount of genetic...
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Updated: Jun 17, 2025

Implementation of In Vitro Drug Resistance Assays: Maximizing the Potential for Uncovering Clinically Relevant Resistance Mechanisms
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蛋白质多层结构功能集成的深度学习方法用于突变效应预测.

Ai-Ping Pang1,2, Yongsheng Luo3, Junping Zhou1,2

  • 1National and Local Joint Engineering Research Center for Biomanufacturing of Chiral Chemicals, Zhejiang University of Technology, Hangzhou, People's Republic of China.

Biotechnology journal
|August 8, 2024
PubMed
概括
此摘要是机器生成的。

深度学习方法MLSmut通过分析结构特征准确预测蛋白质突变效应. 这种计算方法加速了蛋白质工程,减少了对广泛实验室实验的需求.

关键词:
深度学习是一种深度学习.指导进化是指导进化的.突变效应是一种突变效应.

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科学领域:

  • 计算生物学是一种计算生物学.
  • 蛋白质工程是一种蛋白质工程.
  • 生物信息学是一种生物信息学.

背景情况:

  • 蛋白质工程依赖于定向进化,但由于庞大的序列空间和复杂的突变相互作用,很难识别最佳突变地点.
  • 预测突变的功能影响对于增强蛋白质特性至关重要,但仍然是一个重大挑战.

研究的目的:

  • 开发一种基于深度学习的方法,MLSmut,用于预测蛋白质突变的影响.
  • 利用多层次的结构特征来提高蛋白质工程中的预测准确性.

主要方法:

  • MLSmut利用多层次的结构特征,包括蛋白质共同进化,序列语义和几何信息.
  • 两阶段的培训策略包括对未标记的蛋白质数据进行粗调和对实验测量进行微调.
  • 该模型在10个单站点和两个多站点深度突变扫描数据集上进行了评估.

主要成果:

  • 在预测基准数据集中的突变结果方面,MLSmut显著优于现有的方法.
  • 两阶段的培训策略有效地解决了培训数据的有限可用性.
  • 该模型在下游蛋白质预测任务上显示了令人满意的性能.

结论:

  • MLSmut提供了一个强大的计算工具来预测突变效应,加速蛋白质工程的努力.
  • 这种方法可以减少劳累的湿实验室实验的需要.
  • 这些发现增强了我们对蛋白质中基因型-表型关系的理解.