Poly(ADP-ribose) glycohydrolase (PARG)

Poly(ADP-ribose) synthesized after DNA damage is only present transiently and is quickly degraded by poly(ADP-ribose) glycohydrolase (PubMed:23102699). PARG acts both as an endo- and exoglycosidase, releasing PAR of different length as well as ADP- ribose monomers (PubMed:23102699).

Required for retinoid acid- dependent gene transactivation, probably by dePARsylating histone demethylase KDM4D, allowing chromatin derepression in RAR- dependent gene promoters (PubMed:23102699). Involved in the synthesis of ATP in the nucleus, together with PARP1, NMNAT1 and NUDT5 (PubMed:27257257).