{{'Search' | translate}}
 

Creatine phosphate

Company: Roche Diagnostics
Catalog#: 10621722001
Bio-protocol()
Company-protocol()
Other protocol()

Cell-free Reconstitution of the Packaging of Cargo Proteins into Vesicles at the trans Golgi Network
Author:
Date:
2020-03-05
[Abstract]  Protein sorting at the trans Golgi network (TGN) plays important roles in targeting newly synthesized proteins to their specific destinations. The aim of this proposal is to reconstitute the packaging of non-Golgi resident cargo proteins into vesicles at the TGN, utilizing rat liver cytosol, semi-intact mammalian cells and nucleotides. The protocol describes how to perform the vesicle formation assay, how to isolate vesicles and how to detect cargo proteins in vesicles. This reconstitution assay can be used to quantitatively measure the efficiency of the packaging of a specific cargo protein into transport vesicles at the TGN under specific experimental conditions. [摘要]  [摘要] 反式高尔基体网络(TGN)上的蛋白质分选在将新合成的蛋白质靶向其特定目的地方面起着重要作用。该提议的目的是利用大鼠肝细胞溶质,半完整的哺乳动物细胞和核苷酸,在TGN处将非高尔基驻留的货物蛋白重新包装成囊泡。该协议描述了如何进行囊泡形成测定,如何分离囊泡以及如何检测囊泡中的货物蛋白。该重构测定法可用于定量测量在特定实验条件下将特定货物蛋白包装到TGN的运输小泡中的效率。

[背景] 的反式高尔基体网络(TGN)是在分泌运送路径的必要的交通枢纽。为了确保水泡运输的保真度,真核细胞利用各种蛋白质分选设备将特定的货物蛋白质准确地包装到TGN的运输小泡中,然后运至特定的目的地(Guo 等人,2014)。为了加深我们对TGN分选过程特异性的理解,重要的是开发一种能够忠实地重构TGN囊泡形成和货物分选过程的分析方法。该测定法可用于直接和定量地测量特定因子在调节特定货物蛋白包装到运输小泡中的作用。从内质网(ER)将货物蛋白包装到COPII囊泡中的无细胞重构已得到很好的建立(Kim 等,2005; Kim 等,2007; Merte 等,2010; Yuan 等。,2018;Niu 等,2019;)。已经开发出一种体外测定法,其在TGN处重构特定货物蛋白TGN46在运输小泡中的释放(Ponnambalam 等,1996;Wakana ...

Comments