3.4.18.1	-	
3.4.18.1	purified 9.48fold via a one-step purification process using a DEAE-Sephagel HPLC column	
3.4.18.1	recombinant enzyme from Pichia pastoris by cation exchange chromatography	
3.4.18.1	recombinant GST-tagged enzyme from Escherichia coli strain BL21 by glutathione affinity and anion exchange chromatography