Chemically-modified g-csf

Details Chemically-modified g-csf Chemically-modified g-csf

C - Chemistry, Metallurgy

07

K

530/13

C07K 14/535 (2006.01) A61K 47/48 (2006.01) C07K 1/113 (2006.01) C07K 17/08 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2006596

The present invention provides a chemically-modified protein prepared by binding polyethylene glycol to a polypeptide characterized by being the product of expression by a host cell of an exogenous DNA sequence and substantially having the following amino acid sequence: (Het)n Thr Pro Leu Gly Pro Ala Ser Ser Leu Pro Gln Ser Phe Leu Leu Lys Cys Leu Glu Gln Val Arg Lys Ile Gln Gly Asp Gly Ala Ala Leu Gln Glu Lys Leu Cys Ala Thr Tyr Lys Leu Cys His Pro Glu Glu Leu Val Leu Leu Gly His Ser Leu Gly Ile Pro Trp Ala Pro Leu Ser Ser Cys Pro Ser Gln Ala Leu Gln Leu Ala Gly Cys Leu Ser Gln Leu His Ser Gly Leu Phe Leu Tyr Gln Gly Leu Leu Gln Ala Leu Glu Gly Ile Ser Pro Glu Leu Gly Pro Thr Leu Asp Thr Leu Gln Leu Asp Val Ala Asp Phe Ala Thr Thr Ile Trp Gln Gln Het Glu Glu Leu Gly Het Ala Pro Ala Leu Gln Pro Thr Gln Gly Ala Het Pro Ala Phe Ala Ser Ala Phe Gln Arg Arg Ala Gly Gly Val Leu Val Ala Ser His Leu Gln Ser Phe Leu Glu Val Ser Tyr Arg Val Leu Arg His Leu Ala Gln Pro (n=0 or 1) The chemically-modified protein according to the present invention has the prolonged neutrophils-increasing activity and enables a fewer administration with a lower dose.

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