Fig. 4From: Cell-culture growth conditions resulting in the oxidation of a recombinant antigen-binding fragmentSDS-PAGE analysis of rFabs from each of the eight bioreactors in the DOE optimization study. The SDS-PAGE samples were collected at day 18 of the cell culture. Lane 1 shows the molecular weight markers. Lanes 2 through 9 represent bioreactors 1 through 8Back to article page