(E)-5-hydroxyferulate + S-adenosyl-L-methionine => (E)-sinapate + S-adenosyl-L-homocysteine + H(+)
(e)-5-hydroxyferulate + s-adenosyl-l-methionine => (e)-sinapate + s-adenosyl-l-homocysteine + h(+)
(E)-5-hydroxyferulate + S-adenosyl-L-methionine => (E)-sinapate + S-adenosyl-L-homocysteine + H(+)
(e)-5-hydroxyferulate + s-adenosyl-l-methionine => (e)-sinapate + s-adenosyl-l-homocysteine + h(+)