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