Analysis of protein-protein proximities using the split-ubiquitin system

Abstract

The split-ubiquitin system is a fragment complementation assay that is based on a conditional proteolysis design. The system has been used to study protein-protein interactions between membrane proteins and to screen for new interaction partners for transcription factors. This paper outlines the recent progress in the split-ubiquitin technology that has been made possible through the development of new reporter proteins. © Henry Stewart Publications.