Polyclonal antibodies against the N-terminal of PARP-1, Poly [ADP-ribose] polymerase 1, a chromatin-associated enzyme that modifies various nuclear proteins. The modification is dependent on DNA and is involved in the regulation of various important cellular processes. This PARP-1 terminal antibody has been validated for use in Western blotting, chromatin IP, and reported to work in immunohistochemistry and immunoprecipitation.