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首页> 外文期刊>Biochemistry >An Inducible DamID System for Profiling Interactions of Nuclear Lamina Protein Component Lamin B1 with Chromosomes in Mouse Cells
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An Inducible DamID System for Profiling Interactions of Nuclear Lamina Protein Component Lamin B1 with Chromosomes in Mouse Cells

机译:小鼠细胞染色体核薄层蛋白组分Lamin B1的诱导型Damid系统

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摘要

At the level of DNA organization into chromatin, there are mechanisms that define gene expression profiles in specialized cell types. Genes within chromatin regions that are located at the nuclear periphery are generally expressed at lower levels; however, the nature of this phenomenon remains unclear. These parts of chromatin interact with nuclear lamina proteins like Lamin B1 and, therefore, can be identified in a given cell type by chromatin profiling of these proteins. In this study, we created and tested a Dam Identification (DamID) system induced by Cre recombinase using Lamin B1 and mouse embryonic fibroblasts. This inducible system will help to generate genome-wide profiles of chromatin proteins in given cell types and tissues with no need to dissect tissues from organs or separate cells from tissues, which is achieved by using specific regulatory DNA elements and due to the high sensitivity of the method.
机译:在DNA组织水平进入染色质中,存在在专用细胞类型中定义基因表达谱的机制。 位于核周边的染色质区内的基因通常在较低水平下表达; 然而,这种现象的性质仍然尚不清楚。 染色质的这些部分与核薄层蛋白相互作用,如Lamin B1,因此可以通过这些蛋白质的染色质分析中的给定细胞类型鉴定。 在这项研究中,我们使用Lamin B1和小鼠胚胎成纤维细胞创建并测试了CRE重组酶诱导的局部鉴定(DAMID)系统。 该诱导系统将有助于在给定细胞类型和组织中产生染色质蛋白的基因组型曲线,没有必要将组织从器官或单独的细胞中解剖来自组织的组织,这是通过使用特异性调节DNA元素实现的,并且由于高灵敏度而实现的组织。 方法。

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