| abstract |
Use of the Fc fragment as a drug carrier, in which the Fc fragment is an IgG Fc, in which the Fc fragment is covalently linked to a drug by a non-peptide linker, in which (i) the Fc fragment has a amino acid sequence represented by SEQ ID NO. 8, (ii) the non-peptide linker is polyethylene glycol, and (iii) the drug is a polypeptide drug. |