5.3.2.5	His-Bind resin column chromatography and Superose 6 gel filtration	714022	
5.3.2.5	native enzyme by fractionation with help of protamine suzlfate, ammonium sulfate, and P-60, followed by anion exchange and hydrophobic interaction chromatography	669181	
5.3.2.5	recombinant enzyme from Escherichia coli	701475	
5.3.2.5	recombinant His-tagged enzyme from Escherichia coli strain BL21(DE3) by nickel affinity chromatography	678268	
5.3.2.5	recombinant wild-type and mutant enzymes from Escherichia coli strain BL21(DE3) by two different steps of anion exchange chromatography and ultrafiltration	678268