Fusion protein having factor IX activity

US9617328B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9617328-B2
Application numberUS-201113880239-A
CountryUS
Kind codeB2
Filing dateOct 19, 2011
Priority dateOct 20, 2010
Publication dateApr 11, 2017
Grant dateApr 11, 2017

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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Disclosed is a fusion protein comprising blood coagulation factor IX (FIX) and transferrin. The fusion protein exhibits improved specific FIX activity, as compared to native FIX, and can be useful in the treatment of FIX deficiency-associated diseases.

First claim

Opening claim text (preview).

What is claimed is: 1. A fusion protein comprising human-derived factor IX (FIX) and human-derived transferrin, wherein the fusion protein comprises a linker between the FIX and the transferrin, said linker being the amino acid sequence of SEQ ID NO: 9 or 11; wherein the FIX amino acid sequence has 95% or higher identity to the amino acid sequence of SEQ ID NO: 1; and wherein the transferrin amino acid sequence has 95% or higher identity to the amino acid sequence of SEQ ID NO: 2. 2. A gene encoding the fusion protein of claim 1 . 3. The gene of claim 2 , wherein the gene has the nucleotide sequence of SEQ NO: 20 or 21. 4. A recombinant vector comprising the gene of claim 3 . 5. An isolated host cell comprising the recombinant vector of claim 4 therein. 6. The host cell of claim 5 , wherein the host cell is selected from the group consisting of a CHO cell, a BHK-21 cell, an HEK293 cell, and a HepG2 cell.

Assignees

Inventors

Classifications

  • Antihaemorrhagics; Procoagulants; Haemostatic agents; Antifibrinolytic agents · CPC title

  • C07K14/79Primary

    Transferrins, e.g. lactoferrins, ovotransferrins · CPC title

  • Coagulation factor IXa (3.4.21.22) · CPC title

  • C07K19/00Primary

    Hybrid peptides {, i.e. peptides covalently bound to nucleic acids, or non-covalently bound protein-protein complexes} · CPC title

  • Blood coagulation or fibrinolysis factors · CPC title

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Frequently asked questions

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What does patent US9617328B2 cover?
Disclosed is a fusion protein comprising blood coagulation factor IX (FIX) and transferrin. The fusion protein exhibits improved specific FIX activity, as compared to native FIX, and can be useful in the treatment of FIX deficiency-associated diseases.
Who is the assignee on this patent?
Lee Min Sun, Kim Hun-Taek, Lee Bong-Yong, and 3 more
What technology area does this patent fall under?
Primary CPC classification C07K14/79. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 11 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).