DNA FRAGMENTS ENCODING HUMAN ERYTHROPOIETIN, RECOMBINANT DNAS, CELL LINE, RECOMBINANT O-GLYCOSYLATED HUMAN ERYTHROPOIETIN, PHARMACEUTICAL COMPOSITION Russian patent published in 1998 - IPC

Abstract RU 2120996 C1

FIELD: biotechnology, medicine. SUBSTANCE: genome DNA fragments from human fetal liver and the corresponding fragments to DNA providing high expression levels of erythropoietin are cloned in mammalian cells. Cell line CHO - a producer of recombinant erythropoietin (CHO EPO Cla 44.02-7) is obtained. As a result of expression of the cloned DNA fragments in mammalian cells O-glycosylated human erythropoietin is obtained at specific activity 200 000 U/mg, not less, and pharmaceutical composition using the indicated recombinant erythropoietin as an active component. EFFECT: improved method of preparing, increased specific activity of erythropoietin. 12 cl, 11 tbl, 12 dwg

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RU 2 120 996 C1

Authors

Ehdvard Fritch

Rodni M.Kh'Juvik

Kennet Dzhekobs

Dates

1998-10-27Published

1991-11-15Filed