Fig. 5
Fermentation of d-glucose and d-xylose by strain DS68625 expressing Hxt36 or Hxt36-3K (a) and Hxt36 N367A and Hxt36 N367A-3K (b). Symbols depicted show growth (OD600; open squares), ethanol (open triangles), d-glucose (closed squares), and d-xylose (closed triangles). The 3K mutants are shown as solid lines, and the parental transporters are indicated with dashed lines. Errors are the standard deviation of two independent experiments