A modular toolbox to generate complex polymeric ubiquitin architectures using orthogonal sortase enzymes

Abstract

Ubiquitin (Ub) and Ub-like modifiers (Ubls) can form chains of various topologies, but preparing defined chains for functional studies remains challenging. Here, the authors develop chemoenzymatic tools to tailormake Ub/Ubl chains and study the involvement of specific Ub/SUMO chains in DNA repair.