Koscielniak Dawid, Sobisz Ewelina, Wons Ewa, Sęktas Marian
Department of Microbiology, Faculty of Biology, University of Gdansk, Gdańsk, Poland.
Acta Biochim Pol. 2021 Aug 26;68(3):407-409. doi: 10.18388/abp.2020_5736.
We present here an alternative for two-promoter systems ensuring highly diverse expression of several genes from a single promoter. This approach assumes an introduction of a deletion mutation into an A/T homopolymeric run in a gene's proximal part, and employs the transcriptional slippage mechanism for insertion-dependent reinstatement of the proper reading frame by the T7 RNA polymerase.
我们在此提出一种双启动子系统的替代方案,可确保从单个启动子高度多样化地表达多个基因。该方法是在基因近端部分的A/T同聚物序列中引入缺失突变,并利用转录滑动机制,通过T7 RNA聚合酶实现依赖插入的正确阅读框恢复。