Ubiquitin and SUMO, two small proteins modifiers, control important aspects of the cell division program in eukaryotic cells. The Kerscher Lab studies the consequences of SUMO-modification on protein targeting and function during cell division. They are particularly interested in the SUMO protease Ulp1 and SUMO-targeted Ubiquitin ligases (STUbLs). The ultimate goal of their research is to elucidate how SUMO-modification safeguards the transmission and maintenance of genetic information.