4.1.2.52	(S)-4-hydroxy-2-oxopentanoate	-	Escherichia coli	?	-	?	425200	
4.1.2.52	2-oxo-3-methyl-4-hydroxypentanoate	efficient substrate	Escherichia coli	2-oxobutyrate + acetaldehyde	-	?	425464	
4.1.2.52	2-oxobutanoate + acetaldehyde	-	Escherichia coli	?	-	?	422437	
4.1.2.52	3-deoxy-D-manno-oct-2-ulosonic acid	3-deoxy-D-manno-oct-2-ulosonic acid i.e. KDO	Escherichia coli	?	-	?	422518	
4.1.2.52	4-hydroxy-2-oxo-heptanedioate	-	Escherichia coli	pyruvate + succinic semialdehyde	-	?	421812	
4.1.2.52	4-hydroxy-2-oxoheptane-1,7-dioate	-	Escherichia coli	pyruvate + succinate semialdehyde	-	?	424578	
4.1.2.52	4-hydroxy-2-oxoheptanedioate	-	Escherichia coli	pyruvate + succinate semialdehyde	-	?	421813	
4.1.2.52	4-hydroxy-2-oxohexanoate	-	Escherichia coli	?	-	?	422588	
4.1.2.52	4-hydroxy-2-oxopentanoate	-	Escherichia coli	?	-	?	416308	
4.1.2.52	4-hydroxy-2-oxopentanoic acid	-	Escherichia coli	pyruvate + ?	-	?	422594