1.1.1.122 DEAE-Sepharose column chromatography, phenyl-Toyopearl column chromatography, Q-Sepharose column chromatography, Superdex 200HR gel filtration, and Mono Q column chromatography 741316 1.1.1.122 Ni2+ affinity chromatography 762598 1.1.1.122 to homogeneity, chromatography steps, preparative gel electrophoresis 285806 1.1.1.122 to homogeneity, chromatography steps, preparative gel electrophoresis, affinity chromatography 285805 1.1.1.122 to homogeneity, chromatography techniques 285798, 285800, 285801, 285802, 285803, 285804