-
公开(公告)号:US07091326B2
公开(公告)日:2006-08-15
申请号:US10196183
申请日:2002-07-17
申请人: Dong-eok Lee , Myung-suk Oh , Ki-wan Kim , Bo-sup Chung , Ji-sook Park
发明人: Dong-eok Lee , Myung-suk Oh , Ki-wan Kim , Bo-sup Chung , Ji-sook Park
IPC分类号: C07K14/59 , C07K14/505 , C12N15/00 , C12N15/62
CPC分类号: C12N15/62 , A61K38/00 , C07K14/505 , C07K14/59 , C07K2319/00 , C07K2319/75
摘要: Provided is a fusion protein comprising, at its carboxy terminal of human erythropoietin (EPO), a mutant having one to four amino acid substitutions in the carboxy terminal peptide (CTP) fragment of a human chorionic gonadotropin (HCG) β subunit, for increasing an in vivo half-life activity of EPO. The in vivo half-life can be greatly elongated while retaining the intrinsic activity of the EPO, without increasing the sugar chain content.