A simple method to generate stable cell lines for the analysis of transient protein-protein interactions

Autor: Patrick M. Sexton, Denise Wootten, Arthur Christopoulos, Sebastian G.B. Furness, Emilia Elizabeth Savage
Rok vydání: 2013
Předmět:
Zdroj: BioTechniques. 54:217-221
ISSN: 1940-9818
0736-6205
Popis: Transient protein-protein interactions form the basis of signal transduction pathways in addition to many other biological processes. One tool for studying these interactions is bioluminescence resonance energ y transfer (BRET). This technique has been widely applied to study signaling pathways, in particular those initiated by G protein-coupled receptors (GPCRs). These assays are routinely performed using transient transfection, a technique that has limitations in terms of assay cost and variability, overexpression of interacting proteins, vector uptake limited to cycling cells, and non-homogenous expression across cells within the assay. To address these issues, we developed bicistronic vectors for use with Life Technology's Gateway and flpIN systems. These vectors provide a means to generate isogenic cell lines for comparison of interacting proteins. They have the advantage of stable, single copy, isogenic, homogeneous expression with low inter-assay variation. We demonstrate their utility by assessing ligand-induced interactions between GPCRs and arrestin proteins.
Databáze: OpenAIRE