Figure 4From: Recombinant d-galactose dehydrogenase partitioning in aqueous two-phase systems: effect of pH and concentration of PEG and ammonium sulfateSDS-PAGE analysis of the purified recombinant GalDH. Lane M: protein molecular marker; lanes 1 and 2: top phase and bottom phase obtained from ATPS [14.0% (w/w) PEG 4000 and 12.0% (w/w) (NH4)2SO4 at pH 7.48].Back to article page