7.5.2.1	-	246873, 654879, 655421, 735178	
7.5.2.1	cobalt resin column chromatography and Talon resin column chromatography	734727	
7.5.2.1	cobalt-affinity column chromatography and Superdex 200 gel filtration	734773	
7.5.2.1	maltose binding protein MalE	246877	
7.5.2.1	Ni-NTA-agarose microcolumn chromatography	669245	
7.5.2.1	Ni2+-chelating affinity gel chromatography and gel filtration	669120	
7.5.2.1	Ni2+-chelating column chromatography and Superdex 200HR gel filtration	733387	
7.5.2.1	purification of recombinant subunits	654822	
7.5.2.1	recombinant His-tagged enzyme from Escherichia coli strain JM109	696772	
7.5.2.1	recombinant His-tagged wild-type and mutant enzymes from Escherichia coli strain JM109 by nickel affinity chromatography and ultrafiltration	698632