Fermentation profile of engineered strain D452-2 in the presence and absence of xylose. S. cerevisiae strain D452-2 was transformed with the pCS plasmid, encoding cellodextrin transporter cdt1-F213L and SdCBP. Anaerobic fermentations were supplied with 80 g/L cellobiose in the presence (red dots) and absence (blue dots) of 40 g/L xylose. Extracellular concentrations of (A) cellobiose, (B) ethanol, (C) xylose, (D) xylitol and (E) glucopyranosyl-xylose are shown. Values and error bars represent the means and standard deviations of two independent biological replicates.