6.3.5.7 - 492303, 492306, 492307, 662450, 674787, 728668 6.3.5.7 DEAE-cellulose column chromatography, Ni-NTA resin column chromatography, and Superdex 200 gel filtration 728391 6.3.5.7 overexpressed with pTrcgatCABBST in E. coli 492305 6.3.5.7 using heat treatment and column chromatography 716331 6.3.5.7 using Ni-NTA chromatography 716371