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相关概念视频

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After folding, the ER assesses the quality of secretory and membrane proteins. The correctly folded proteins are cleared by the calnexin cycle for transport to their final destination, while misfolded proteins are held back in the ER lumen. The ER chaperones attempt to unfold and refold the misfolded proteins but sometimes fail to achieve the correct native conformation. Such terminally misfolded proteins are then exported to the cytosol by ER-associated degradation or ERAD pathway for...
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Aip1p Dynamics Are Altered by the R256H Mutation in Actin
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在C端标记会损害AGO2的功能.

Kunal M Shah1, Alex F F Crozier1, Anika Assaraf1,2

  • 1Centre for Cancer Cell and Molecular Biology, Barts Cancer Institute, Queen Mary University of London, London, UK.

RNA biology
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概括
此摘要是机器生成的。

阿尔戈纳特2 (AGO2) 的C端 HaloTag 融合会损害其基因沉默功能和局部化. 这项研究强调了为准确的RNA沉默研究验证标记策略的必要性.

关键词:
一个AGO2的AGO2阿尔戈诺特人是一个阿尔戈诺特人.克里斯普尔-Cas9是什么意思在HaloTag中使用HaloTag.它们是RNAiRNAi.微RNAs 是一个微型RNA.标记蛋白质的标记是蛋白质的标记.

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科学领域:

  • 分子生物学分子生物学
  • 遗传学 是一个遗传学.
  • 生物化学 生物化学

背景情况:

  • 微RNA介导的基因沉默对于转录后的基因调节至关重要.
  • 阿尔戈纳特2 (AGO2) 是RNA诱导沉默复合体 (RISC) 的核心.
  • 研究AGO2功能需要可靠的分子工具,但标记可以引入文物.

研究的目的:

  • 调查AGO2.2的C端 HaloTagging 的功能后果.
  • 为了比较N端与C端标记对AGO2功能的影响.
  • 评估C端 HaloTag-AGO2 适用于研究 RISC 生物学的适用性.

主要方法:

  • 使用CRISPR-Cas9 (CRISPaint) 生成了AGO2 (AGO2HALO) 的C终端HaloTag融合.
  • 评估了AGO2HALO蛋白结合,细胞活力,RNA裂变,沉默活性和局部化.
  • 对比N端 (AGO2-EGFP) 和C端 (EGFP-AGO2) 通过暂时转染标记了AGO2.

主要成果:

  • C端AGO2HALO显示TNRC6A结合减少,RNA裂变受损,沉默和核定位.
  • N端AGO2-EGFP保留了野生类型的功能和局部化.
  • 在沉默,核导入和P体定位方面,C端EGFP-AGO2受损.

结论:

  • C端的HaloTagging损害了AGO2的功能,使其不适合RISC研究.
  • 标记策略必须得到验证,以防止在基因沉默研究中得出人工物诱导的结论.
  • 与C端标记相比,N端标记似乎更符合维持AGO2功能.