all-trans-nonaprenyl diphosphate + homogentisate + H(+) = 2-methyl-6-(all-trans-nonaprenyl)benzene-1,4-diol + CO2 + diphosphate
all-trans-nonaprenyl diphosphate + homogentisate + h(+) = 2-methyl-6-(all-trans-nonaprenyl)benzene-1,4-diol + co2 + diphosphate