Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of...
Reexamination Certificate
2001-02-16
2009-12-15
Robinson, Hope A (Department: 1652)
Chemistry: molecular biology and microbiology
Animal cell, per se ; composition thereof; process of...
C435S252300, C435S069100, C435S320100, C435S006120
Reexamination Certificate
active
07632677
ABSTRACT:
The invention involves a cell line which can express human mutated tissue-type plasminogen activator (TNK-TPA), and its preparation methods. The collection number of cell lines in this invention is CCTCC C200006. We first used a DNA fragment from the short arms of human group D or group G chromosomes or its homolog to construct a recombinant human source gene vector-TNK-TPA (collection number is CCTC m200032); TNK-TPA gene is then incorporated into the target site in the nucleolus organizing region (NOR) of human group D or G chromosomes in host cell line HT1080; of which the recombinant cell line is attained after screening. The recombinant cell line can be used for manufacturing protein.
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Birch & Stewart Kolasch & Birch, LLP
Robinson Hope A
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