Mem-PER™ Plus Membrane Protein Extraction Kit/Mem-PER膜蛋白提取试剂盒
货号:89842
规格:300 mL
价格:4056
产品类型:蛋白提取/纯化
品牌:Thermo Fisher
Thermo Scientific Mem-PER Plus 膜蛋白提取试剂盒可通过基于试剂的简单程序实现整合膜蛋白和膜相关蛋白的小规模增溶和富集。Mem-PER Plus 试剂盒可使用简单的台式微量离心程序从培养细胞和组织中有效分离膜蛋白。它可以有效溶解含有一个或两个跨膜结构域的整合膜蛋白,并将它与细胞溶质蛋白分离开。本试剂盒可以从培养的哺乳动物细胞以及硬质和软质哺乳动物组织中提取和选择性富集整合膜蛋白和膜联蛋白。与原始的 Mem-PER 试剂盒相比,该 Mem-PER Plus 试剂盒具备很多优点。方案更简单,组分可直接兼容许多下游应用,如 SDS-PAGE、Western 印迹、BCA、免疫沉淀以及胺反应性蛋白标记技术。包括:试剂盒含有细胞洗涤液、透化缓冲液和增溶缓冲液。传统膜蛋白分离方法既繁琐又费时,而且需要梯度分离和昂贵的超速离心设备。此 Mem-PER Plus 膜蛋白提取试剂盒可利用选择性提取方案从培养的哺乳动物细胞或组织中富集整合膜蛋白和膜联蛋白,所用试剂以温和的去污剂为主。传统分离方法通常需要依据疏水性进行分离,而选择性去污剂提取方案可以省去这一繁琐的相分离过程,从而提高了实验的重现性和处理通量。先使用温和的去污剂对细胞进行透膜处理,使细胞释放可溶性细胞溶质蛋白,然后再使用第二种去污剂溶解膜蛋白。提取效率和得率取决于细胞类型以及整合膜蛋白在脂质双分子层上的跨膜次数。对于含有一个或两个跨膜结构域的膜蛋白,提取效率通常可达到 90%。仅有极少细胞溶质蛋白会掺入膜蛋白组分中,因此交叉污染率通常不足 10%。 |
优点: |
-提取和分离—交叉污染率极低(通常低于 10%),膜蛋白组分中仅会掺入极少量细胞溶质蛋白-细胞或组织—能从培养的哺乳动物细胞和哺乳动物组织中进行高效提取-下游兼容性—通过 SDS-PAGE、Western 印迹、免疫沉淀和蛋白检测分析膜蛋白提取物-快速简单—可在约 1 小时内分离出膜蛋白-不需要特殊设备—只需要台式微量离心机、管、均质仪和移液器 |
数据: |
图1Protocol summary for the Mem-PER Plus Membrane Protein Extraction Kit 图2Isolation and enrichment of membrane proteins from different tissuesMembrane proteins were isolated from frozen mouse heart or brain (30mg) following the Mem-PER Plus Membrane Protein Extraction Kit protocol. Membrane and cytosolic fractions (10μg) were separated by SDS-PAGE and transferred to a nitrocellulose membrane. Western blots were done using the Thermo Scientific Fast Western Rabbit Dura Kit (Part No. 35071) and primary antibodies diluted 1:1000. Images were generated using the Thermo Scientific myECL Imager (Part No. 62236). 图3Membrane protein yields from common cell lines obtained with two popular extraction kitsMembrane proteins were isolated using the Thermo Scientific Mem-PER Plus Membrane Protein Extraction Kit and the EMD Millipore ProteoExtract™ Native Membrane Protein Extraction Kit (Part No. 444810), following the respective protocols. Membrane protein yield was determined by BCA Protein Assay (Part No. 23225) with BSA standards (Part No. 23209). |
相关产品: |
▪NE-PER™ Nuclear and Cytoplasmic Extraction Reagents(货号#78833/78835)▪M-PER™ Mammalian Protein Extraction Reagent(货号#78501/78503/78505)▪Halt™ Protease and Phosphatase Inhibitor Single-Use Cocktail, EDTA-Free (100X)(货号#78441/78443/78445/78447)▪Halt™ Protease and Phosphatase Inhibitor Single-Use Cocktail (100X)(货号#78442/78440/78444/78446) |
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