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相关概念视频

Lipids as Anchors01:32

Lipids as Anchors

In the plasma membrane, the lipids forming the bilayer can also act as an anchor to tether proteins to the membrane. The three main types of lipid anchors found in eukaryotes are – prenyl groups, fatty acyl groups, and glycosylphosphatidylinositol or GPI groups. Prenyl and fatty acyl groups act as anchors on the cytosolic surface of the membrane, whereas GPI anchors proteins on the extracellular side.
The carboxy-terminal of most of the prenylated proteins, such as Ras proteins, contains the...

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相关实验视频

Updated: Jun 21, 2026

Lipid Vesicle-mediated Affinity Chromatography using Magnetic Activated Cell Sorting LIMACS: a Novel Method to Analyze Protein-lipid Interaction
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使用蛋白质-脂质结合物评估S-化蛋白质膜亲和力的协议.

Chunyang Xie1, Dong Luo2, Lu Liu1

  • 1School of Life Sciences, Chongqing University, Chongqing 401331, China.

STAR protocols
|August 2, 2024
PubMed
概括

这项研究引入了一种新的体外试验方法,以评估S-化蛋白如何与膜结合. 该协议详细说明了为评估S-化蛋白质的膜关联而创建蛋白质-脂质结合体.

关键词:
细胞膜的细胞膜.化学 化学 化学蛋白质的表达和净化过程

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Click-Chemistry Based Fluorometric Assay for Apolipoprotein N-acyltransferase from Enzyme Characterization to High-Throughput Screening
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Last Updated: Jun 21, 2026

Lipid Vesicle-mediated Affinity Chromatography using Magnetic Activated Cell Sorting LIMACS: a Novel Method to Analyze Protein-lipid Interaction
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科学领域:

  • 生物化学 生物化学
  • 细胞生物学 细胞生物学
  • 分子生物学分子生物学

背景情况:

  • S-化是一种对蛋白质定位和功能至关重要的翻译后修饰.
  • S-乙基化蛋白通常与细胞膜相关,但在体外评估这种相互作用可能具有挑战性.

研究的目的:

  • 建立一个强大的体外平台来评估S-化蛋白质的膜亲和力.
  • 为准备必要的试剂和执行膜结合试验提供详细的方案.

主要方法:

  • 制备脂质-马莱胺化合物和mCherry-p62重组蛋白质.
  • 使用已制备的试剂合成蛋白质脂质合物.
  • 使用细胞膜合成的蛋白质-脂质结合物的膜亲和力的评估.

主要成果:

  • 成功合成蛋白质-脂质结合物.
  • 证明该协议在评估S-酸蛋白与膜相互作用方面的实用性.
  • 建立一个可复制的体外系统用于膜关联研究.

结论:

  • 开发的协议为研究S-化蛋白-膜相互作用在体外提供了有价值的工具.
  • 这个平台促进了对S-化在蛋白质定位和信号传递中的功能作用的研究.