The PARP (Poly(ADP-ribose) polymerase) protein is a zinc-dependant nuclear enzyme whose main role is to detect and repair DNA single-strand breaks (SSB). However, PARP antibody research has revealed there are at least 17 PARP proteins, which also play a major role in apoptosis (programmed cell death) and post-translational modification. We at Novus Biologicals have an extensive range of PARP antibody products in our antibody catalogu.