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LB Broth, Miller

LB Broth, Miller

Company: NACALAI TESQUE
Catalog#: 20068-75
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Visible Immunoprecipitation (VIP) Assay: a Simple and Versatile Method for Visual Detection of Protein-protein Interactions
Author:
Date:
2018-01-05
[Abstract]  The visible immunoprecipitation (VIP) assay is a convenient alternative to conventional co-immunoprecipitation (Katoh et al., 2015). By processing lysates from cells co-expressing GFP-fusion and RFP-fusion proteins for immunoprecipitation with GST-tagged anti-GFP Nanobody and glutathione-Sepharose beads, protein-protein interactions can be visualized by directly observing the beads bearing immunoprecipitates under a fluorescence microscope. This assay can examine a large number of protein combinations at one time, without requiring time-consuming procedures, including SDS-PAGE and immunoblotting. Furthermore, the VIP assay can examine complicated one-to-many and many-to-many protein interactions. Another important point of the VIP assay is the use of nanobodies for ... [摘要]  可见的免疫沉淀(VIP)测定是常规免疫共沉淀的方便的替代方法(Katoh等人,2015)。通过处理来自共表达GFP融合蛋白和RFP融合蛋白的细胞的裂解物以用GST标记的抗GFP纳米抗体和谷胱甘肽琼脂糖珠粒进行免疫沉淀,可以通过在荧光显微镜下直接观察带有免疫沉淀物的珠来显现蛋白质 - 蛋白质相互作用。该检测方法可以一次检测大量的蛋白质组合,无需耗时的操作,包括SDS-PAGE和免疫印迹。此外,VIP测定可以检查复杂的一对多和多对多的蛋白质相互作用。 VIP测定的另一个重要的点是使用纳米抗体进行免疫沉淀。纳米抗体是来自骆驼科(骆驼和亲戚)的单域抗体。由于其体积小,高亲和力,高特异性和稳定性,因此在E中表达的抗GFP纳米抗体。大肠杆菌可以大规模纯化,并且实际上用于免疫沉淀实验。在这里,我们描述了制备GST标记的抗GFP纳米抗体和VIP测定的方案。


【背景】细胞中的几乎所有蛋白质都通过与其他蛋白质相互作用起作用。揭示蛋白质 - 蛋白质相互作用网络是了解蛋白质功能的关键。已经开发了多种方法,例如酵母双杂交系统,GST pull-down和免疫共沉淀来分析蛋白质 - 蛋白质相互作用。最近,我们开发了一种称为可见免疫沉淀(VIP)测定的蛋白质 - 蛋白质相互作用分析的新方法(Katoh等人,2015)。 ...

Efficient AAV-mediated Gene Targeting Using 2A-based Promoter-trap System
Author:
Date:
2016-12-20
[Abstract]  Adeno-associated virus (AAV)-based targeting vectors have 1-4-log higher gene targeting efficiencies compared with plasmid-based targeting vectors. The efficiency of AAV-mediated gene targeting is further increased by introducing a promoter-trap system into targeting vectors. In addition, we found that the use of ribosome-skipping 2A peptide rather than commonly used internal ribosome entry site (IRES) in the promoter-trap system results in significantly higher AAV-mediated gene targeting efficiencies (Karnan et al., 2016). In this protocol, we describe the procedures for AAV-mediated gene targeting exploiting 2A for promoter trapping, including the construction of a targeting vector based on the platform plasmid pAAV-2Aneo or pAAV-2Aneo v2, production of AAV particles, infection ... [摘要]  与基于质粒的靶向载体相比,基于腺相关病毒(AAV)的靶向载体具有1-4对较高的基因靶向效率。 通过将启动子捕获系统引入靶向载体中,AAV介导的基因靶向的效率进一步增加。 此外,我们发现使用核糖体跳跃2A肽而不是通常使用的内部核糖体进入位点(IRES)在启动子捕获系统中导致显着更高的AAV介导的基因靶向效率(Karnan等,2016)。 在该方案中,我们描述了AAV介导的基因靶向开发2A用于启动子捕获的程序,包括基于平台质粒pAAV-2Aneo或pAAV-2Aneo v2的靶向载体的构建,AAV颗粒的产生,细胞感染 基于AAV的靶向载体,以及基因靶向细胞克隆的分离和验证。
【背景】以前在其他方案中描述了AAV介导的基因靶向的程序(对应于本方案的BG部分)(Kohli等人,2004; Rago等人,2007; Khan等人,2011; Howes and Schofield ,2015)。 然而,该方案提供了如何使用基于2A的启动子捕获系统首次进行AAV介导的基因靶向的详细描述。

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