N(2)-(ADP-D-ribosyl)-guanosine + nicotinamide + H(+) => guanosine + NAD(+)
n(2)-(adp-d-ribosyl)-guanosine + nicotinamide + h(+) => guanosine + nad(+)
N(2)-(ADP-D-ribosyl)-guanosine + nicotinamide + H(+) => guanosine + NAD(+)
n(2)-(adp-d-ribosyl)-guanosine + nicotinamide + h(+) => guanosine + nad(+)