3.1.6.13 | the recombinant fusion enzyme protein is triaged to the lysosomal compartment of MPS-II fibroblasts, expression in CHO cells as IgG-sulfatase fusion protein with the enzyme fused to a genetically engineered monoclonal antibody against the human insulin receptor, i.e. HIRMAb. The cDNA encoding the human IDS cDNA, minus the sequence encoding the signal peptide, is fused to the carboxyl terminus of the CH3 region of the heavy chain of the chimeric HIRMAb |