E coli promoter of sgRNA(PdapA)
The BBa_K2559004 , PdapA promoter is a strong endogenous promoter in Escherichia coli K 12.
Usage and Biology
We obtained this promoter from a database named PromEC ( http://margalit.huji.ac.il/promec/index.html) .PromEC is an updated compilation of E. coli mRNA promoter sequences. It includes detailed information of genesites which have been experimentally identified mRNA transcriptional starting position in the E. coli chromosome, as well as the actual sequences of the promoters. We have built up a model to measure the expression intensity of these promoters. Eventually, we selected three promoters including: PrplJ, Pdapa and PcaiF based on the results of modeling PrplJ, Pdapa and PcaiF.We further made chimeric fluorescent fusion proteins between the promoter and GFP respectively and tested the fluorescent intensity driven by different promoters. The combination of PromEC and our modeling can be used as a efficient tool to figure out the information about interested promoters. The GFP expression in E.coli (DH5 α) and was driven by PrplJ, Pdapa and PcaiF promoter.
The part is facilitate the in-depth research for other teams!
Sequence and Features
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