3.2.2.8	-	137116, 654131, 657373, 724342	
3.2.2.8	Ni-NTA column chromatography	700741	
3.2.2.8	Ni-NTA column chromatography and MonoQ column chromatography	696258	
3.2.2.8	partial purification, 300fold	137117	
3.2.2.8	recombinant enzyme	679803	
3.2.2.8	recombinant enzyme from strain W6 by nickel chelate affinity chromatography and gel filtration	664140	
3.2.2.8	recombinant His6-tagged enzyme from strain BL21(DE3) by nickel chelate affinity chromatography and gel filtration, the His-tag is cleaved off by thrombin	663495