HPF1 dynamically controls the PARP1/2 balance between initiating and elongating ADP-ribose modifications

oleh: Marie-France Langelier, Ramya Billur, Aleksandr Sverzhinsky, Ben E. Black, John M. Pascal

Format: Article
Diterbitkan: Nature Portfolio 2021-11-01

Deskripsi

HPF1 controls the ADP-ribosylation activity of PARP1/2 in response to DNA breaks. Here, the authors show that HPF1 regulates the balance between ADP-ribose initiation and elongation through a dynamic interaction that accelerates the initiation rate on serine residues.