2.7.1.144	tagatose-6-phosphate kinase	lactose and galactose degradation I	-	
3.2.1.85	6-phospho-beta-galactosidase	lactose and galactose degradation I	-	
4.1.2.40	tagatose-bisphosphate aldolase	lactose and galactose degradation I	-	
5.3.1.26	galactose-6-phosphate isomerase	lactose and galactose degradation I	-