Fusion protein having enhanced in vivo erythropoietin activity

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) subunit, for increasing an in vivo half-life activity of EPO. Th...

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Bibliographic Details
Main Authors Oh, Myung-suk, Lee, Dong-eok, Kim, Ki-wan, Chung, Bo-sup, Park, Ji-sook
Format Patent
LanguageEnglish
Published 19.06.2003
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Summary: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) 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.