1.17.1.3 native enzyme to near homogeneity from leaves, about 48500fold 636457 1.17.1.3 partially 654372 1.17.1.3 recombinant enzyme from Escherichia coli 654366 1.17.1.3 recombinant His-tagged LAR1 from Escherichia coli by nickel affinity chromatography 715907