3.5.1.41 chitin + H2O = chitosan + acetate prefers nascent to preformed chitin 3.5.1.41 chitin + H2O = chitosan + acetate multiple chain mechanism 3.5.1.41 chitin + H2O = chitosan + acetate hydrolyses the N-acetamido groups of N-acetyl-D-glucosamine residues in chitin 3.5.1.41 chitin + H2O = chitosan + acetate ligand binding to the enzyme, computational docking analysis, catalytic mechanism via a tetrahedral oxyanion intermediate, and active site structure with a conserved metal-binding triad consisting of His104, His108, and Asp50