Reaction catalyzed by polyprenyldihydroxybenzoate methyltransferase (2.1.1.114)

		+			=			+
	S-adenosyl-L-methionine	+		3,4-dihydroxy-5-all-trans-polyprenylbenzoate	=		S-adenosyl-L-homocysteine	+		3-methoxy-4-hydroxy-5-all-trans-polyprenylbenzoate