Fig. 7From: Engineering broad-spectrum digestion of polyuronides from an exolytic polysaccharide lyaseSubstrate specificity and overall activity of mutant lyases. The substrate specificity ratio (RM/G), defined as the ratio of poly-ManA activity over poly-GulA activity, with respect to overall poly-ManA activity for each mutant lyase. Mutants were found to group in four general categories as discussed in the text. Note that 100 % activity was taken as the activity of WT against poly-ManABack to article page