Figure 2From: A highly conserved arginine residue of the chitosanase from Streptomyces sp. N174 is involved both in catalysis and substrate bindingSpecific activity of CsnN174 R42X mutants in crude extract of E. coli cells. (*) indicates that the specific activity significantly differs from that directed by the empty pUC19 vector (ANOVA test, P<0.05).Back to article page