Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...
Reexamination Certificate
2011-02-22
2011-02-22
Carlson, Karen Cochrane (Department: 1656)
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Recombinant dna technique included in method of making a...
C435S358000
Reexamination Certificate
active
07892790
ABSTRACT:
A method is described for the expression of heterologous polypeptides in rodent cells. The method comprises the oriP/EBNA-1 episomal replication and maintenance system of the Epstein-Barr-Virus (EBV). With the stable integration of an EBNA-1-protein expression cassette under the control of a promoter into the genome of a rodent cell an EBNA-1-protein expression in the cells was obtained. The heterologous protein is expressed from an episome comprising an EBV origin of replication and a functional expression cassette of said heterologous protein. The invention further comprises transformed rodent cell lines, a method for the production of a heterologous protein in said cell lines and a kit for the construction of said cell lines.
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Goepfert Ulrich
Kopetzki Erhard
Carlson Karen Cochrane
Hoffmann-La Roche Inc.
Johnston George W.
Tramaloni Dennis P.
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