Drug – bio-affecting and body treating compositions – Antigen – epitope – or other immunospecific immunoeffector – Virus or component thereof
Reexamination Certificate
2008-06-12
2010-11-09
Salimi, Ali R. (Department: 1648)
Drug, bio-affecting and body treating compositions
Antigen, epitope, or other immunospecific immunoeffector
Virus or component thereof
C435S005000
Reexamination Certificate
active
07829101
ABSTRACT:
An improved method for recovering the protein expressed by open reading frame 2 from porcine circovirus type 2 is provided. The method generally involves the steps of transfecting recombinant virus containing open reading frame 2 coding sequences into cells contained in growth media, causing the virus to express open reading frame 2, and recovering the expressed protein in the supernate. This recovery should take place beginning approximately 5 days after infection of the cells in order to permit sufficient quantities of recombinant protein to be expressed and secreted from the cell into the growth media. Such methods avoid costly and time-consuming extraction procedures required to separate and recover the recombinant protein from within the cells.
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Eichmeyer Marc
Nitzel Greg
Schaeffer Merrill
Boehringer Ingelheim Vetmedica, Inc.
Morris Michael P.
Salimi Ali R.
Scott Julie A.
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