1.1.1.11 - 1.1.1.11 recombinant and native enzymes purified to homogeneity by ammonium sulfate precipitation and gel filtration, 119fold 1.1.1.11 recombinant His-tagged enzyme from Escherichia coli strain BL21(DE3) by nickel affinity chromatography and gel filtration 1.1.1.11 recombinant protein from Escherichia coli 1.1.1.11 strain P14 1.1.1.11 strain PRL-R3