2.7.4.2	-	
2.7.4.2	ammonium sulfate, DEAE-cellulose, BioGel P-150, hydroxylapatite, Blue Dextran-Sepharose	
2.7.4.2	ammonium sulfate, ethanol, phosphate gel, DEAE-cellulose	
2.7.4.2	native enzyme from liver	
2.7.4.2	Ni-NTA resin column chromatography	
2.7.4.2	Ni-Sepharose column chromatography	
2.7.4.2	Q Sepharose, Phenyl Sepharose, Sephacryl S200, Mono Q, gel filtration, Shodex KW803	
2.7.4.2	recombinant His-tagged enzyme from Escherichia coli strain BL21 by nickel affinity chromatography	
2.7.4.2	recombinant His-tagged wild-type and mutant enzymes from Escherichia coli by nickel affinity chromatography	
2.7.4.2	recombinant His6-tagged enzyme from Escherichia coli strain BL21(DE3) by nickel affinity chromatography and gel filtration