4-hydroxyphenylacetate + FMNH2 + O2 <=> 3,4-dihydroxyphenylacetate + FMN + H2O + H(+)
4-hydroxyphenylacetate + fmnh2 + o2 <=> 3,4-dihydroxyphenylacetate + fmn + h2o + h(+)
4-hydroxyphenylacetate + FMNH2 + O2 <=> 3,4-dihydroxyphenylacetate + FMN + H2O + H(+)
4-hydroxyphenylacetate + fmnh2 + o2 <=> 3,4-dihydroxyphenylacetate + fmn + h2o + h(+)