MODIFIED CARBOHYDRATE PROCESSING ENZYME

摘要

The present invention relates to modified modified carbohydrate processing enzymes. In particular, the invention relates to a modified polypeptide having carbohydrate processing enzymatic activity, said modification comprising substitution of the amino acid residue forming the catalytic nucleophile of an active site by a less nucleophilic amino acid residue, wherein said less nucleophilic residue retains some nucleophilic activity.