| Types | DnaRegion
|
| Roles | Coding
CDS
|
| Sequences | BBa_K1666005_sequence (Version 1)
|
Description
Quorum sensing is a process of bacterial cell-to-cell communication involving the production and detection of extracellular signaling molecules called autoinducers. And autoinducer-2 (AI-2) has been proposed to serve as a 'universal signal' for interspecies communication. In the LuxS/AI-2 signaling system of Salmonella Typhimurium, AI-2 response involves ATP binding cassette transporter encoded by genes named Lsr (LuxS regulated). And LsrR is the Transcriptional regulator which is inactivated by binding phospho-AI-2, leading to the transcription of the lsr genes. In our project, we set this protein-coding part under a nisA promoter and try to integrate them in the genome of Lactobacillus or Lactococcus for the final purpose of constructing an integrated AI-2 response pathway of Salmonella in the engineered bacteria.
Notes
The lsrR gene was isolated from the genome of Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 using PCR. We added restriction enzyme sites when designing primers, and the assembly is done through the use of restriction sites (cutting and ligating).
Source
We extracted the genomic DNA of Salmonella enterica subsp. enterica serovar Typhimurium str. LT2, and used PCR to isolate the gene LsrR(Gene ID: 1255600).
