abstract |
The present invention relates to a fusion protein comprising a biologically active molecule and an immunoglobulin (Ig) Fc domain bound to the biologically active molecule. The Fc domain is a hybrid human Fc domain of (i) IgG1, IgG2 or IgG4 or (ii) IgG4 and IgD. Hybrid Fc's are useful as carriers of biologically active molecules.n n n n Fusion protein |