1.1.1.290	metal-chelate chromatography on Ni-NTA resin and size exclusion chromatography	667077	
1.1.1.290	Ni-agarose column chromatography	724295	
1.1.1.290	recombinant His-tagged PdxB from Escherichia coli stran BL21(DE3) by nickel affinity chromatography and ultrafiltration	724295