Reaction catalyzed by dTDP-4-dehydrorhamnose reductase (1.1.1.133)

		+		NAD(P)H	=			+		NAD(P)+
	dTDP-6-deoxy-L-lyxo-4-hexulose	+		NAD(P)H	=		dTDP-L-rhamnose	+		NAD(P)+