{HEAD ~ Methods} and materials are provided for the production of compositions of erythropoietin protein, wherein said compositions comprise {TAIL ~ a pre selected N linked glycosylation pattern} as the predominant N glycoform 
{ HEAD ~ Methods } and materials are provided for the production of compositions of erythropoietin protein , wherein said compositions comprise { TAIL ~ a pre selected N linked glycosylation pattern } as the predominant N glycoform
HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH