AHL regulated PoPS generator: Las receiver device
pLas and LasR sequences are gathered from Registry.
Quorum sensing is the mechanism of communication between bacteria via synthesizing and detecting chemical compounds in the media. With these mediators, the promoters and their yield can be tuned or regulated. This part represents an alternative quorum sensing receiver device, which is able to generate a PoPS response in the presence of 6HSLO3 produced by LasI, instead of BBa_F2620. This will allow iGEMers to establish communications between different bacteria colonies and it makes simple to generate easy regulated complex systems. This part is assembled with Las promoter system to improve the current quorum sensing devices and parts which commonly base on Lux promoter system.
Note that pLas has no RBS afterwards, the assembling methods must be selected after this consideration.
Enterobacteria phage T4 Lysis Device - no promoter
Pubmed Accession Number: NC_000866 Enterobacteria phage T4
This is the lysis device using three genes from enterobacteria phage T4: lysozyme, holin, and antiholin. Various promoters can be installed with this device to control the lysis of bacteria. Antiholin has its own constitutive promoter to prevent the formation of holin multimers from basal expression. When the device is off, higher expression of antiholin compared to holin is required for better stability of the device.
[Pcon].[Antiholin].[terminator] was assembled first, and then assembled with [T4 holin].[terminator]; Constitutive expression of antiholin is required before assembling holin.
Derived from the TE terminator of T7 bacteriophage between Genes 1.3 and 1.4 <genbank>V01146</genbank>.
Transcription terminator for the E.coli RNA polymerase.
Suggested by Sri Kosuri and Drew Endy as a high efficiency terminator. The 5' end cutoff was placed immediately after the TAA stop codon and the 3' end cutoff was placed just prior to the RBS of Gene 1.4 (before AAGGAG). Use anywhere transcription should be stopped when the gene of interest is upstream of this terminator.
Transcriptional terminator consisting of a 64 bp stem-loop.
Enterobacteria phage T4 http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=29366675&from=160221&to=160877&view=gbwithparts
Holins from T4 bacteriophage assemble together to form pores on inner membrane of bacteria allowing lysozyme to reach periplasm and degrade peptidoglycan layer.
Making composite part of rbs.holin is problematic unless antiholin is expressed in bacteria together. Antiholin binds holin and inhibits the formation of holin.
Enterobacteria phage T4 http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=29366675&from=66503&to=66997&view=gbwithparts
The lysozyme from enterobacteria phage T4 degrades peptidoglycan layer.
High expression of lysozyme only is toxic to bacteria.
Enterobacteria phage T4 http://www.ncbi.nlm.nih.gov/entrez/viewer.fcgi?val=29366675&from=59202&to=59495&view=gbwithparts
Antiholin binds holin and prevents holin multimers from forming pores on the inner membrane of bacteria.
Higher constitutive expression of antiholin compared to the expression of holin is required for the stable lysis device.
Conversion of the iGEM parts registry to SBOL2.1