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. 2001 Mar;67(3):1179–1184. doi: 10.1128/AEM.67.3.1179-1184

TABLE 2.

Purification of flavin reductase from recombinant E. coli

Purification step Protein (mg) Total activity (U) Sp act (U/mg) Purification (fold) Yield (%)
Cell extract 791 40,300 50.9 1 100
Ammonium sulfate fractionation 389 29,400 75.6 1.5 73.0
Q-Sepharose 132 19,600 148 2.9 48.6
Butyl-Toyopearl 73.3 9,500 130 2.6 23.6