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Company: Avanti Polar Lipids, Inc.
Catalog#: 610036
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Calcein Release Assay to Measure Membrane Permeabilization by Recombinant Alpha-Synuclein
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2020-07-20
[Abstract]  Lipid membranes are involved in regulating biochemical and biological processes and in modulating the selective permeability of cells, organelles, and vesicles. Membrane composition, charge, curvature, and fluidity all have concerted effects on cellular signaling and homeostasis. The ability to prepare artificial lipid assemblies that mimic biological membranes has enabled investigators to obtain considerable insight into biomolecule-membrane interactions. Lipid nanoscale assemblies can vary greatly in size and composition and can consist of a single lipid monolayer, a bilayer, or other more complex assemblies. This structural diversity makes liposomes suitable for a wide variety of biochemical and clinical applications. Here, we describe a calcein dye leakage assay that we have developed ... [摘要]  [摘要] 脂质膜参与调节生物化学和生物过程,并调节细胞,细胞器和囊泡的选择性通透性。膜的组成,电荷,曲率和流动性均对细胞信号传导和体内平衡具有协同作用。制备模拟生物膜的人工脂质组装体的能力使研究人员能够深入了解生物分子与膜之间的相互作用。脂质纳米级装配体的大小和组成可以有很大不同,并且可以由单个脂质单层,双层或其他更复杂的装配体组成。这种结构上的多样性使脂质体适用于多种生化和临床应用。在这里,我们描述了一种钙黄绿素染料泄漏测定法,该测定法已开发用于监测磷脂酰小泡被α-突触核蛋白( αSyn)破坏,α-突触核蛋白是一种突触前蛋白,在帕金森氏病(PD)中起着重要作用。我们目前的数据显示的效果腺苷酰化的α Syn的上α 的Syn 介导囊泡破裂,例如,此法可用于研究基因突变或翻译后修饰的作用,对α 的Syn -membrane相互作用,以确定蛋白质结合合作伙伴或扰乱这些相互作用的化学实体,并以研究的渗透活动不同血脂的影响α Syn 或其他任何蛋白质。

背景技术脂质体是由于脂质头基团和脂肪酸侧链之间的亲水和疏水相互作用而形成的纳米级脂质组装体。这些生物膜模仿脂质双层组件是研究蛋白质生物分子的膜相互作用的有用工具,这是由于:(i )调节脂质体直径的灵活性,从而调节膜曲率;(ii)控制脂质成分(Ahmed 等,2019;Siontorou ...

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