1.2.1.4	-	
1.2.1.4	aldehyde dehydrogenase a, b, c, d, and e	
1.2.1.4	Ni-NTA column chromatography	
1.2.1.4	nickel affinity column chromatography	
1.2.1.4	Source 30Q column chromatography and Superdex 200 gel filtration	
1.2.1.4	using a Q-sepharose anion exchange column for enzyme preparation of mouse liver, using nickel agarose affinity chromatography for purification of recombinant protein