Poly-ADP-ribosylation is a post-translational modification that is countered by poly(ADP-ribose) glycohydrolases (PARGs). In this study, the authors present the crystal structure of poly(ADP-ribose) glycohydrolase (PARGs) in complex with a poly(ADP-ribose) substrate, and reveal that poly(ADP-ribose) glycohydrolase (PARGs) enzymes act predominantly as exo- rather than as endo-glycohydrolases.
- Eva Barkauskaite
- Amy Brassington
- David Leys