Figure 6From: A highly conserved arginine residue of the chitosanase from Streptomyces sp. N174 is involved both in catalysis and substrate bindingEffect of the degree of N -deacetylation of chitosan on wild-type and Arg42-mutated chitosanases activity. Wild-type or mutated chitosanases have been incubated with various chitosans in standard conditions and activity was measured by reducing sugar assay. For each enzyme, the activity against Sigma chitosan (84%-N-deacetylated) was taken as a reference (100%).Back to article page