Difference between revisions of "Part:BBa K2273111"
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| − | Sites of restriction enzymes generating compatible overhangs are indicated by sharing one color. (<span style="color:blue">EcoRI</span> and <span style="color:blue">PstI</span> are marked in blue, <span style="color:green">NotI</span> in green, <span style="color:red">XbaI</span> and <span style="color:red">SpeI</span> in red | + | Sites of restriction enzymes generating compatible overhangs are indicated by sharing one color. (<span style="color:blue">EcoRI</span> and <span style="color:blue">PstI</span> are marked in blue, <span style="color:green">NotI</span> in green, <span style="color:red">XbaI</span> and <span style="color:red">SpeI</span> in red) |
===Beta-Lactam Biosensor=== | ===Beta-Lactam Biosensor=== | ||
Revision as of 11:24, 3 October 2017
PblaZ Promoter controlling gene expression of blaZ in S. aureus
The PblaZ promoter is a part used in the Beta-Lactam Biosensor project of [http://2017.igem.org/Team:TU_Dresden iGEM Team TU Dresden 2017 (EncaBcillus - It's a trap!)].
This part is a composite of the bla operon found in Staphylococcus aureus and constitutes the promoter regulating gene expression of the gene blaZ, coding for a beta-lactamase. If the microorganism is exposed to beta-lactam antibiotics, a receptor, named blaR1 [1], senses the compound and a signal is transduced into the cytoplasm. Subsequently, the BlaI repressor protein [2] is degraded and frees the PblaZ promoter. Following, the blaZ gene is transcribed and confers resistance to the antibiotic.
This part features the RFC10 prefix and suffix:
| Prefix with | EcoRI, NotI, XbaI | GAATTCGCGGCCGCTTCTAGA |
| Suffix with | SpeI, NotI and PstI | ACTAGTAGCGGCCGCTGCAGA |
Sites of restriction enzymes generating compatible overhangs are indicated by sharing one color. (EcoRI and PstI are marked in blue, NotI in green, XbaI and SpeI in red)
Beta-Lactam Biosensor
In this subproject, we developed a functional and complete heterologous beta-lactam biosensor in Bacillus subtilis. By the time these specified cells sense a compound of the beta-lactam family, they will respond by producing a measurable luminescence signal. We further investigated the detection spectrum of the biosensor by testing different beta-lactam antibiotics from various subclasses. For increased control and easy handling of the biosensor strain during a potential field application, we demonstrate that the encapsulation of the cells into Peptidosomes is quite advantageous.
Sequence and Features
- 10COMPATIBLE WITH RFC[10]
- 12COMPATIBLE WITH RFC[12]
- 21COMPATIBLE WITH RFC[21]
- 23COMPATIBLE WITH RFC[23]
- 25COMPATIBLE WITH RFC[25]
- 1000COMPATIBLE WITH RFC[1000]