| abstract |
The present invention is a polynucleotide that can be used as a WXRE transcriptional regulatory element to increase the level of protein expression in a protein expression system, and a protein expression vector or protein expression system containing the aforementioned WXRE transcriptional regulatory factor, and use thereof. It is about. By using the transcriptional regulatory factor WXRE according to the present invention, it is possible to significantly improve the expression level of the foreign protein and maintain its own biochemical activity. |