A co-expression strategy to achieve labeling of individual subunits within a dimeric protein for single molecule analysis

Abstract

A generic co-expression strategy for site-specific incorporation of a single donor–acceptor dye pair into any position in a dimeric protein, allowing single molecule FRET study of proteins previously inaccessible to this technique, such as the intrinsically disordered prion N-domain of Ure2 in the context of its globular dimeric C-domain.