Reaction catalyzed by 2-oxo-acid reductase (1.1.99.30)

		+		oxidized antraquinone-2,6-disulfonate	=			+		reduced antraquinone-2,6-disulfonate
	dimethylsulfoxide	+		oxidized antraquinone-2,6-disulfonate	=		dimethylsulfide	+		reduced antraquinone-2,6-disulfonate