Hydrolysis of ADP-Ribosylation by Macrodomains.

: ADP-ribosylation is the process of transferring the ADP-ribose moiety from NAD+ to a substrate. While a number of proteins represent well described substrates accepting ADP-ribose modification, a recent report demonstrated biological role for DNA ADP-ribosylation as well. The conserved macrodomain fold of several known hydrolyses was found to possess de-ADP-ribosylating activity and the ability to hydrolyze (reverse) ADP-ribosylation. Here we summarize the methods that can be employed to study mono-ADP-ribosylation hydrolysis by macrodomains.