Cell growth and SELP-1020-A expression using auto-induction medium with different flask volume ratios after 22 hours of fermentation. All samples were normalised for the same cell density prior to loading on gel. This figure was assembled from pictures of different gels. No modifications were made to the images other than cutting, pasting and resizing. Cell density is indicated below each gel with target recombinant protein indicated by arrows. Molecular weight marker is represented on the right and left lanes.