preferred_name: 3,4-dihydroxybenzoate + S-adenosyl-L-methionine <=> vanillate + S-adenosyl-L-homocysteine + H(+)
preferred_name_lc: 3,4-dihydroxybenzoate + s-adenosyl-l-methionine <=> vanillate + s-adenosyl-l-homocysteine + h(+)
label: 3,4-dihydroxybenzoate + S-adenosyl-L-methionine <=> vanillate + S-adenosyl-L-homocysteine + H(+)
label_lc: 3,4-dihydroxybenzoate + s-adenosyl-l-methionine <=> vanillate + s-adenosyl-l-homocysteine + h(+)