Figure 4From: Comparative shotgun proteomic analysis of Clostridium acetobutylicum from butanol fermentation using glucose and xylose Comparison of NSAF values for glucose and xylose substrates. NSAF values were averaged amongst two individual technical runs per sample and plotted on a log scale. The solid squares represent the proteins identified in each sample. The straight diagonal line is for visualizing the location of all proteins that had approximately equal expression in both samplesBack to article page