Part:BBa_K5348005
pL-RBS2
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal BamHI site found at 1874
- 23COMPATIBLE WITH RFC[23]
- 25INCOMPATIBLE WITH RFC[25]Illegal NgoMIV site found at 587
Illegal NgoMIV site found at 659
Illegal NgoMIV site found at 749
Illegal NgoMIV site found at 767
Illegal NgoMIV site found at 1259
Illegal NgoMIV site found at 1552
Illegal NgoMIV site found at 1646
Illegal AgeI site found at 301
Illegal AgeI site found at 1427 - 1000INCOMPATIBLE WITH RFC[1000]Illegal BsaI site found at 1316
Illegal BsaI.rc site found at 200
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BBa_K5348005 (pL-RBS2)
Construction Design
To reduce the leaky expression of the light-inducible induction system (BBa_K3447133, hereafter referred to as the pL), we reduced the intensity of the RBS linked to the target gene in this element by 108-fold (RBS2). The composition of this element is shown below.
Engineering Principle
Under dark condition, histidine kinase (YF1) phosphorylates FixJ (response regulator of histidine kinase), which activates PFixK2 (the target gene for transcription upon FixJ activation), driving the expression of the cI gene (λ phage repressor), which represses the transcription of its cognate promoter, PR (the cognate promoter of cI), and downstream genes cannot be expressed. Under blue light, the cI gene cannot be expressed, PR can be transcribed normally, and downstream genes can be expressed [1].
Reference
[1] H, Mays RL, Hoffman SM, Avalos JL. Optogenetic Control of Microbial Consortia Populations for Chemical Production. ACS Synth Biol. 2021 Aug 20;10(8):2015-2029.
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