A group around Professor Hiroshi UEDA at TIT succeeded to develop a simple and highly sensitive luminescence assay for protein-protein interactions based on the complementation of two two mutant firefly luciferases.
Yuki OHMURO-MATSUYAMA et al., Anal. Chem. Aug 1, 2013, DOI: 10.1021/ac4016825
Group at Tokyo Institute of Technology develops sensitive protein-protein interaction assay based on luciferase