Why DUBs?
DUBs comprise a group of around 100 human proteins that play important roles in regulating ubiquitylation. This is the process whereby ubiquitin – a small, regulatory protein so called because it is present in all complex organisms and virtually every cell in the body – controls protein homeostasis, protein activity, intracellular location, and sub-cellular turnover or degradation.
Certain DUBs such as USP30 play a critical role in regulating mitophagy, but they can sometimes inhibit this process to such an extent that they negatively impact the health of the cell.