Part:BBa_K4811017
PT7-TMS-TT7
This is a transriptional unit for a tRNA mimicking structure (TMS), using the T7 promoter and terminator. In BL21(DE3), the T7 polymerase is under LacI control, meaning it will be expressed by IPTG, leading to expression of the TMS tRNA. The TMS is a novel piece of synthetically designed RNA, which folds in the same manner as tRNA, developed by Paul et al. It is a transencoded genetic switch, which binds to the specific Ribosome Binding Site(RBS) BBa_K4811001, repressing translation. The binding regions are flanking the RBS, and no binding happens in the RBS consensus sequence. This means that there are very few limitations on both the possible TMSs and repressible RBSs which could be engineered. Also, the D-loop of the TMS can be exchanged for additional functionality, such as an aptamer, making the TMS responsive to a ligand.
In this particular part, the D-loop has not been changed.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21INCOMPATIBLE WITH RFC[21]Illegal XhoI site found at 94
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]
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