A Split-Luciferase Reporter Recognizing GFP and mCherry Tags to Facilitate Studies of Protein–Protein Interactions

Autor: Yann Gambin, Emma Sierecki, Mehdi Moustaqil, Laura Gonzalez, Dominic J. B. Hunter, Lisa Raoul, Pascal Carrive, Akshay Bhumkar
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Zdroj: International Journal of Molecular Sciences
International Journal of Molecular Sciences; Volume 18; Issue 12; Pages: 2681
International Journal of Molecular Sciences, Vol 18, Iss 12, p 2681 (2017)
ISSN: 1422-0067
Popis: The use of fluorescently-tagged proteins in microscopy has become routine, and anti-GFP (Green fluorescent protein) affinity matrices are increasingly used in proteomics protocols. However, some protein–protein interactions assays, such as protein complementation assays (PCA), require recloning of each protein as a fusion with the different parts of the complementation system. Here we describe a generic system where the complementation is separated from the proteins and can be directly used with fluorescently-tagged proteins. By using nanobodies and performing tests in cell-free expression systems, we accelerated the development of multiple reporters, detecting heterodimers and homodimers or oligomers tagged with GFP or mCherry. We demonstrate that the system can detect interactions at a broad range of concentrations, from low nanomolar up to micromolar.
Databáze: OpenAIRE