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相关概念视频

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Reporter Genes

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Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
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Updated: Jul 11, 2025

Author Spotlight: Photo Switchable Protein Recruitment for Reversible Patterning in Artificial Cellular Systems
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用可编程生成模型照亮蛋白质空间

John B Ingraham1, Max Baranov1, Zak Costello1

  • 1Generate Biomedicines, Somerville, MA, USA.

Nature
|November 15, 2023
PubMed
概括
此摘要是机器生成的。

克罗玛是一种新的生成模型,通过采样新的结构和序列来设计新型蛋白质和蛋白质复合体. 实验验证表明设计的蛋白质具有功能,表达良好,并正确折叠.

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科学领域:

  • 生物化学
  • 计算生物学
  • 蛋白质工程

背景情况:

  • 蛋白质表现出巨大的多样性, 但它们的功能潜力在很大程度上仍未得到充分利用.
  • 探索可能的蛋白质分子的广空间是具有计算和实验挑战性的.

研究的目的:

  • 介绍Chroma,一个用于设计新型蛋白质结构和序列的生成模型.
  • 允许生成过程对所需的蛋白质特性和功能进行调节.

主要方法:

  • 使用一个扩散过程,尊重聚合物组合的结构统计.
  • 在分子系统中使用高效的神经架构进行远程推理.
  • 包含用于3D蛋白质结构合成和低温采样算法的层.

主要成果:

  • 克罗玛成功地设计了具有所需属性的蛋白质和蛋白质复合体,包括对称性,形状和语义约束.
  • 对310种设计的蛋白质进行实验性表征证实了高表达,适当的折叠和有利的生物物理性质.
  • 两个设计的蛋白质的晶体结构与Chroma的预测 (1.0 Å脊柱RMSD) 显示出了出色的原子一致性.

结论:

  • Chroma提供了一种统一的蛋白质设计方法,加速了基于蛋白质的新材料和治疗方法的创造.
  • 这种生成模型推进了蛋白质工程和合成生物学领域.
  • 克罗玛的功能扩展到包括蛋白质设计的自然语言提示.