2.7.2.11 - 642201, 660594, 673741, 681421 2.7.2.11 (NH4)2SO4 precipitation and a single ion-exchange chromatography step are used 722207 2.7.2.11 by Ni2+ column and gel filtration 677691 2.7.2.11 enzyme form GK 1 642204 2.7.2.11 from strain BRL806, designated as gamma-glutamyl kinase w+ and from reductase-overproducing strain BRL1945, designated as gamma-glutamyl kinase DHPr 642200 2.7.2.11 GST resin column chromatography 761064 2.7.2.11 HisTrap column chromatography 760828 2.7.2.11 Ni-Sepharose column chromatography 761649 2.7.2.11 partial 642203 2.7.2.11 to homogeneity 679845