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