Cell-free in vitro method of forming a covalent conjugate between an erythropoietin peptide and poly(ethylene glycol), pharmaceutical compositions comprising said covalent conjugate and use thereof in the preparation of medicaments for stimulating proliferation, differentiation and activation of myeloid progenitor cells

摘要

The invention includes methods and compositions for remodeling a peptide molecule, including the addition or deletion of one or more glycosyl groups to a peptide, and/or the addition of a modifying group to a peptide.