Fig. 1From: Use of a design of experiments approach to optimise production of a recombinant antibody fragment in the periplasm of Escherichia coli: selection of signal peptide and optimal growth conditionsResponse (a–c) and perturbation (d) plots for the whole cell productivity of DsbAsp-scFv. Response plots show the response of two factors; the third invariant factor is set at level ‘0’. Units in response plots are µg scFv mL−1 culture h−1Back to article page