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相关概念视频

Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

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Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...
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Protein Complexes with Interchangeable Parts01:57

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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
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Mechanical Protein Function01:58

Mechanical Protein Function

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Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
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Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
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ProT-VAE:用于功能性蛋白质设计的蛋白质转换器变异自动编码器.

Emre Sevgen1, Joshua Moller1, Adrian Lange1

  • 1Evozyne, Inc., Chicago, IL 60614.

Proceedings of the National Academy of Sciences of the United States of America
|October 6, 2025
PubMed
概括
此摘要是机器生成的。

我们开发了蛋白质转换器变异自编码器 (ProT-VAE),用于数据驱动的蛋白质设计. 这种模型加速了对具有增强功能的合成蛋白质的发现,包括用于工业应用的具有改善催化活性和热稳定性的酶.

关键词:
生成式建模生成式建模蛋白质设计 蛋白质设计蛋白质语言模型的模型变压器 变压器 变压器变量自动编码器 变量自动编码器

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科学领域:

  • 生物技术是生物技术.
  • 计算生物学 计算生物学
  • 蛋白质工程是指蛋白质工程.

背景情况:

  • 深度生成模型擅长预测蛋白质序列功能关系.
  • 设计具有新型功能的人造蛋白质需要先进的计算工具.

研究的目的:

  • 介绍蛋白质转换器变异自编码器 (ProT-VAE) 用于数据驱动的蛋白质设计.
  • 利用变化自编码器和基于变压器的模型来改进蛋白质序列设计.
  • 验证ProT-VAE在功能预测和设计中的性能.

主要方法:

  • 通过使用NVIDIA的BioNeMo框架实现了ProT-VAE.
  • 潜伏嵌入的组合变化自编码器与变压器模型进行特色化.
  • 通过追溯功能预测和前功能设计验证了模型.

主要成果:

  • 鉴定了一种具有2.5倍野生类型催化活性的氨酸氧酶.
  • 设计了一种具有+61°C化温度升高的玛碳酸无水酶.
  • 在碳捕获的工业相关条件下证明了酶活性.

结论:

  • ProT-VAE是一种准确,快速和可转移的蛋白质设计模型.
  • 该模型可以发现具有工程功能的合成蛋白质.
  • ProT-VAE作为一个强大的平台,用于机器学习引导的定向进化.