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