4.2.1.66 - 4.2.1.66 DNA sequence analysis 4.2.1.66 expressed in Escherichia coli BL21-Gold(DE3) cells 4.2.1.66 expressed in Escherichia coli, pET26b construct p3460, BL21(lambda-DE3) pLysS cells 4.2.1.66 expressed in Escherichia coli, strains and plasmids listed 4.2.1.66 expression in Escherichia coli 4.2.1.66 expression in Escherichia coli BL21 4.2.1.66 overexpression of the wild-type and mutant enzymes in Escherichia coli XL1-Blue