Fig. 9

PirXI mutant S1 (S141N–T142S–A143S–G147A) improves growth on xylose. Growth of S. cerevisiae DS75543 cells harboring wild-type PirXI (green) or mutant PirXI S1 (magenta) on xylose (20 g l⁻¹). Each line represents a biological replicate. The calculated average growth rates were 0.13 ± 0.01 h⁻¹ and 0.18 ± 0.01 h⁻¹ for the wild type and the mutant, respectively