prekainate + 2-oxoglutarate + O2 + H(+) = kainate lactone + succinate + CO2 + H2O
prekainate + 2-oxoglutarate + o2 + h(+) = kainate lactone + succinate + co2 + h2o
prekainate + 2-oxoglutarate + O2 + H(+) = kainate lactone + succinate + CO2 + H2O
prekainate + 2-oxoglutarate + o2 + h(+) = kainate lactone + succinate + co2 + h2o