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Lamin B1 antibody

Company: Gene Tex
Catalog#: GTX103292
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Isolation of Chromatin-bound Proteins from Subcellular Fractions for Biochemical Analysis
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2018-10-05
[Abstract]  Shuttling of proteins between different cellular compartments controls their proteostasis and can contribute in some cases to regulate their activity. Biochemical analysis of chromatin-bound proteins, such as transcription factors, is often difficult because of their low yield and due to the interference from nucleic acids. This protocol describes a method to efficiently fractionate cells combined with a mechanical (i.e., sonication) or an enzymatic treatment (i.e., benzonase) that facilitates analysis of chromatin-bound protein extracts by Western blot analysis or by protein pull-down assays. This approach can be valuable to enrich a particular protein within a particular subcellular fraction either to study specific post-translational modification patterns or to ... [摘要]  在不同细胞区室之间穿梭蛋白质控制它们的蛋白质稳态,并且在某些情况下可以有助于调节它们的活性。 染色质结合蛋白(例如转录因子)的生化分析通常是困难的,因为它们的产率低并且由于核酸的干扰。 该协议描述了一种有效分离细胞的方法,结合机械(即,超声处理)或酶处理(即,benzonase),有助于分析染色质结合蛋白提取物 通过蛋白质印迹分析或蛋白质下拉分析。 该方法对于富集特定亚细胞级分内的特定蛋白质以研究特定的翻译后修饰模式或鉴定特定的蛋白质 - 蛋白质相互作用可能是有价值的。
【背景】许多染色质结合蛋白的活性和翻译后调节研究很少,因为在分离它们进行生化分析时存在技术困难。这甚至是转录因子的情况,例如基本的螺旋 - 环 - 螺旋(bHLH)转录因子,其通常在组织或细胞模型中具有稀缺的时间和空间表达模式(Dennis 等。,2018)。当生物材料的量成为研究分子途径的障碍时,协议细化有助于解除技术限制(Gillotin和Guillemot,2016)。在我们最近的研究中,我们努力了解神经元bHLH转录因子Ascl1的蛋白水解是如何在神经元分化的细胞模型中调节的(Gillotin et ...

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