Fig. 2From: Activation of LacZ gene in Escherichia coli DH5α via α-complementation mechanism for β-galactosidase production and its biochemical characterizationsMolecular weight of E. coli MKUV-Tra44 β-galactosidase by electrophoretic analysis on 7.5% SDS-PAGE. a Molecular weight marker proteins. b Purified β-galactosidaseBack to article page