A modified transcription control unit and uses thereof

Details A modified transcription control unit and uses thereof A modified transcription control unit and uses thereof

C - Chemistry, Metallurgy

12

N

195/1.18, 195/1.

C12N 15/69 (2006.01) C12N 9/64 (2006.01) C12N 9/72 (2006.01) C12N 15/65 (2006.01) C12N 15/66 (2006.01) C12N 15/85 (2006.01) C12P 21/00 (2006.01)

Patent

CA 2036913

The present invention is a modified transcription control unit which contains the P2 enhancer of BK virus spaced closely to the upstream regulatory element of the major late promoter of adenovirus, the adenovirus-2 major late promoter, a poly-GT element positioned to stimulate said promoter and a DNA sequence containing the spliced tripartite leader sequence of adenovirus. The invention further comprises methods of using this modified transcription unit in cells expressing the adenovirus ElA gene product to produce useful substances. The invention further comprises methods to increase the levels of expression in stably transformed cells by performing a second transformation with a vector containing the modified transcription unit.

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