3.2.1.145 additional information construction of deletion mutants NDELTA42, NDELTA42CDELTA257, NDELTA42CDELTA457, and NDELTA42CDELTA76 showing 100%, 80.1%, 122%, and 8.45% activity relative to wild-type enzyme activity -, 731184 3.2.1.145 E112A site-directed mutagenesis, catalytically inactive mutant, the mutation eliminates the galactan hydrolysis activity of the enzyme while it does not disrupt its ligand binding ability 732396 3.2.1.145 E112Q site-directed mutagenesis, catalytically inactive mutant, the mutation eliminates the galactan hydrolysis activity of the enzyme while it does not disrupt its ligand binding ability 732396