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相关概念视频

Fusion of Secretory Vesicles with the Plasma Membrane01:26

Fusion of Secretory Vesicles with the Plasma Membrane

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Proteins and neurotransmitters in secretory vesicles can be released from a cell upon vesicle docking, priming, and fusion with the plasma membrane. Vesicles are docked and primed in preparation for the quick exocytosis of their contents in response to a stimulus. The fusion process is mainly carried out by a SNAP Receptor or SNARE complex, consisting of synaptobrevin, syntaxin-1, and SNAP-25.
In 1993, Jim Rothman proposed that the antiparallel pairing of vesicular and transmembrane SNAREs, or...
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相关实验视频

Updated: Jul 11, 2025

Directed Protein Packaging within Outer Membrane Vesicles from Escherichia coli: Design, Production and Purification
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Directed Protein Packaging within Outer Membrane Vesicles from Escherichia coli: Design, Production and Purification

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一个单元的,光辅助的开关,用于内蛋白质释放的脱.

Mingguang Cui1,2, Seunghwan Lee1,2, Sung Hwan Ban1,2

  • 1Department of Anatomy, Korea University College of Medicine, Seoul, Republic of Korea.

Nature chemical biology
|November 17, 2023
PubMed
概括

研究人员开发了LAUNCHER,这是一种使用病毒蛋白酶的单元光分离开关. 该系统为合成生物学应用提供精确的,用户控制的有效载荷释放.

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Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
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An Integrated System to Remotely Trigger Intracellular Signal Transduction by Upconversion Nanoparticle-mediated Kinase Photoactivation
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相关实验视频

Last Updated: Jul 11, 2025

Directed Protein Packaging within Outer Membrane Vesicles from Escherichia coli: Design, Production and Purification
10:21

Directed Protein Packaging within Outer Membrane Vesicles from Escherichia coli: Design, Production and Purification

Published on: November 16, 2016

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Generating Controlled, Dynamic Chemical Landscapes to Study Microbial Behavior
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科学领域:

  • 合成生物学 合成生物学
  • 分子生物学分子生物学
  • 生物化学 生物化学

背景情况:

  • 蛋白酶在生物过程中起到关键的分子开关作用.
  • 病毒蛋白酶被用作合成生物学电路中的可靠的蛋白质分解开关.

研究的目的:

  • 开发一个单组件的可光切割开关,用于准确的有效载荷释放.
  • 用一种新的光激活系统来增强合成生物电路.

主要方法:

  • 设计了一个循环变异的烟草蚀刻病毒蛋白酶.
  • 设计了一种蓝光通的基板,由模块间连接器连接在一起.
  • 将系统集成到一个称为LAUNCHER (Endoproteolytic Release的光辅助UNcaging开关) 的单元构造中.

主要成果:

  • 与多组件系统相比,LAUNCHER显示出更高的信号噪声比率.
  • 实现有效载荷的精确和用户可控制的释放.
  • 在转基因表达,亚细胞转位和光化学遗传学中成功应用了LAUNCHER.

结论:

  • 启动器提供了一种高效和可控制的方法,用于在蜂应用中释放有效载荷.
  • 启动器的插电性质促进了合成电路的无集成和性能提升.
  • 启动器具有在合成生物学及其他领域的各种应用的巨大潜力.