3,4-dihydroxybenzoate + CO2 => 4,5-dihydroxyphthalate + H(+)
3,4-dihydroxybenzoate + co2 => 4,5-dihydroxyphthalate + h(+)
3,4-dihydroxybenzoate + CO2 => 4,5-dihydroxyphthalate + H(+)
3,4-dihydroxybenzoate + co2 => 4,5-dihydroxyphthalate + h(+)