Method of using eukaryotic expression vectors comprising the BK

Details Method of using eukaryotic expression vectors comprising the BK Method of using eukaryotic expression vectors comprising the BK

1995-06-02

1998-06-23

Ketter, James

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Recombinant dna technique included in method of making a...

4351723, 4353201, C12P 2102

Patent

active

057703973

ABSTRACT:
The present invention is a method of using the BK enhancer in tandem with a eukaryotic promoter to promote transcription of DNA that encodes a useful substance. The method of the present invention requires the presence of the E1A gene product for maximum expression of the useful substance. The present invention also comprises a number of useful expression vectors that comprise the BK enhancer in tandem with the adenovirus 2 late promoter positioned to drive expression of a variety of proteins, such as protein C, chloramphenicol acetyltransferase, and tissue plasminogen activator. The present invention further comprises a method for increasing the activity of the BK enhancer involving placement of the BK enhancer immediately upstream of the eukaryotic promoter used in tandem with the BK enhancer to drive expression of a useful substance. Furthermore, the present invention also comprises a method for coamplification of genes in primate cells. Additionally, the invention further comprises the recombinant human protein C molecule produced in 293 cells which comprises novel glycosylation patterns.

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