. "Catalysis of the reaction: NAD+ + (ADP-D-ribosyl)(n)-acceptor = nicotinamide + (ADP-D-ribosyl)(n+1)-acceptor." . . "NAD+ ADP-ribosyltransferase activity" . "ADP-ribosyltransferase (polymerizing) activity" . "NAD ADP-ribosyltransferase activity" . "NAD+:poly(adenine-diphosphate-D-ribosyl)-acceptor ADP-D-ribosyl-transferase activity" . "poly(adenosine diphosphate ribose) polymerase activity" . "poly(ADP-ribose) synthase activity" . "poly(ADP-ribose) synthetase activity" . "poly(ADP-ribose)polymerase activity" . . .