Reaction catalyzed by rhamnulose-1-phosphate aldolase (4.1.2.19)

		+			=			+
	N-formylglycinal	+		dihydroxyacetone	=		N-[(2S,3R)-2,3,5-trihydroxy-4-oxopentyl]formamide	+		N-[(2R,3R)-2,3,5-trihydroxy-4-oxopentyl]formamide