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相关概念视频

Immunoprecipitation01:20

Immunoprecipitation

5.6K
Immunoprecipitation, or IP, is a widely used technique that employs protein-antibody interactions to isolate proteins or protein complexes in their native state for studying protein-protein interactions, quaternary structures, or supramolecular complexes. Various modifications of the technique, including chromatin IP, cross-linking IP, and fluorescence IP, are commonly used.
Chromatin Immunoprecipitation
Chromatin immunoprecipitation, also known as ChIP, is used to study protein-DNA or...
5.6K

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相关实验视频

Updated: May 3, 2026

High-throughput Purification of Affinity-tagged Recombinant Proteins
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High-throughput Purification of Affinity-tagged Recombinant Proteins

Published on: August 26, 2012

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一种强大而简单的蛋白质净化方法,使用SpyDock修改树脂.

Xiaofeng Yang1, Zhanglin Lin1, Ya Xiang1

  • 1School of Biology and Biological Engineering, South China University of Technology, Guangzhou, Guangdong, China.

Bio-protocol
|April 28, 2025
PubMed
概括

这项研究引入了一种可重复使用的SpyDock树脂,用于直接净化蛋白质,从而消除了昂贵的标签清除步骤. 这种具有成本效益的方法实现了高纯度和产量,适合研究和生物制造.

科学领域:

  • 生物化学 生物化学
  • 生物技术是生物技术.
  • 蛋白质工程是指蛋白质工程.

背景情况:

  • 蛋白质净化在生命科学和生物制造中至关重要.
  • 传统的亲和色谱 (AC) 方法,如His-tag净化,是昂贵的,需要删除标签.
  • 现有的方法在成本效益和效率方面存在局限性.

研究的目的:

  • 开发一种可重复使用,具有成本效益的蛋白质净化方法.
  • 为了使蛋白质与真实的N-termini.termini.直接净化.
  • 为了克服传统的His-tag净化的局限性.

主要方法:

  • 使用可重复使用的SpyDock修改过的环氧树脂.
  • 包含一个pH可诱导的自切割线,用于标签切割.
  • 开发了一种从细胞溶解物中直接净化蛋白质的协议.

主要成果:

  • 实现了高蛋白质纯度 (>90%) 和与His-tag方法可比的产量.
  • 成功净化了具有真实N-终端的蛋白质,消除了标签去除.
  • 证明了SpyDock树脂的强度,易于实施和可重复使用性.
关键词:
真正的N-终端在英特因的基础上.蛋白质固定运动蛋白质净化 蛋白质的净化这是间化学.在SpyDock中修改过的环氧树脂.

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One-step Purification of Twin-Strep-tagged Proteins and Their Complexes on Strep-Tactin Resin Cross-linked With Bissulfosuccinimidyl Suberate BS3
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One-step Purification of Twin-Strep-tagged Proteins and Their Complexes on Strep-Tactin Resin Cross-linked With Bissulfosuccinimidyl Suberate BS3

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相关实验视频

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High Throughput Quantitative Expression Screening and Purification Applied to Recombinant Disulfide-rich Venom Proteins Produced in E. coli
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High Throughput Quantitative Expression Screening and Purification Applied to Recombinant Disulfide-rich Venom Proteins Produced in E. coli

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One-step Purification of Twin-Strep-tagged Proteins and Their Complexes on Strep-Tactin Resin Cross-linked With Bissulfosuccinimidyl Suberate BS3
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One-step Purification of Twin-Strep-tagged Proteins and Their Complexes on Strep-Tactin Resin Cross-linked With Bissulfosuccinimidyl Suberate BS3

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结论:

  • 通过SpyDock修改的树脂为传统蛋白质净化提供了一种高效,低成本的替代方案.
  • 这种方法适用于研究和大规模生物制造应用.
  • 使用真实N端直接净化简化了下游流程.