2.3.1.191 - 2.3.1.191 partial 2.3.1.191 purification of untagged EcLpxD and an active N-terminally His6-tagged LpxD variant to near homogeneityrecombinant enzyme 2.3.1.191 recombinant His6-tagged LpxD from Escherichia coli strain BL21(DE3) by nickel affinity chromatography and gel filtration 2.3.1.191 recombinant N-terminally His6-tagged LpxD from Escherichia coli strain BL21 (DE3) by nickel affinity chromatography and gel filtration