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

Autor: Emilia Elizabeth Savage, Denise Wootten, Arthur Christopoulos, Patrick Michael Sexton, Sebastian George Barton Furness
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: BioTechniques, Vol 54, Iss 4, Pp 217-221 (2013)
Druh dokumentu: article
ISSN: 00011401
1940-9818
0736-6205
DOI: 10.2144/000114013
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.
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