4-hydroxybenzoate + NADH + O2 + 2 H(+) <=> hydroquinone + CO2 + NAD(+) + H2O
4-hydroxybenzoate + nadh + o2 + 2 h(+) <=> hydroquinone + co2 + nad(+) + h2o
4-hydroxybenzoate + NADH + O2 + 2 H(+) <=> hydroquinone + CO2 + NAD(+) + H2O
4-hydroxybenzoate + nadh + o2 + 2 h(+) <=> hydroquinone + co2 + nad(+) + h2o