Bimolecular fluorescence complementation in structural biology

Young Hwa Song, Matthias Wilmanns*

*Corresponding author for this work
4 Citations (Scopus)

Abstract

Bimolecular fluorescence complementation is a method of probing protein-ligand interactions under physiological conditions. It provides a state-of-the-art tool to examine interactions observed in 3D structures of multi-component protein complexes, either to validate new experimental structures or to assess the correctness of homology models. Applications of the method range from homo- and hetero-oligomeric assemblies, including non-protein-ligands. Proof-of-principle experiments have also shown the potential of bimolecular fluorescence complementation to monitor protein complexes in a conformation-dependent manner. Here, recent highlights of structure-based applications of the method are outlined and assessed in terms of project-specific findings. These examples demonstrate the power of bimolecular fluorescence complementation to become a leading analysis tool in structural biology, to independently evaluate and characterize higher-order protein complexes.

Original languageEnglish
JournalMethods
Volume45
Issue number3
Pages (from-to)219-222
Number of pages4
ISSN1046-2023
DOIs
Publication statusPublished - 07.2008

Funding

We acknowledge the collaboration with Mathias Gautel and Stefan Lange on previous BiFC assays of the titin–telethonin complex. The work has been supported by the European Integrated Project SPINE-2 complexes to M.W. (031220) and by the European Integrated Project 3D Repertoire to M.W. (512028).

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