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Team:SDU-Denmark/Project
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The concept of our project is to assemble biobricks in to a plasmid and in this way get ''E. Coli'' to produce and excrete the quorum quenching protein RIP. | The concept of our project is to assemble biobricks in to a plasmid and in this way get ''E. Coli'' to produce and excrete the quorum quenching protein RIP. | ||
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We are trying with the two different promotors, because we don’t know whether a high concentration of RIP will quorum quench the E. Coli it self and it will there for be practical for us to control the rate of transcription. On the other hand we know that a higher concentration of RIP is more efficient at quorum quenching S. Aureus, and it will therefore be more efficient if the plasmid is transcribed at all times. Furthermore if the export of the protein out of the cell is weak, an overproduction of the protein might puncture the cell so RIP will leak out. This will of course kill the cell, but they could be replaced. | We are trying with the two different promotors, because we don’t know whether a high concentration of RIP will quorum quench the E. Coli it self and it will there for be practical for us to control the rate of transcription. On the other hand we know that a higher concentration of RIP is more efficient at quorum quenching S. Aureus, and it will therefore be more efficient if the plasmid is transcribed at all times. Furthermore if the export of the protein out of the cell is weak, an overproduction of the protein might puncture the cell so RIP will leak out. This will of course kill the cell, but they could be replaced. | ||
| - | =Methods and results | + | ==Methods and results== |
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Revision as of 19:38, 30 September 2009
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1. Concept
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3. Summary of results
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Project
Concept
The concept of our project is to assemble biobricks in to a plasmid and in this way get E. Coli to produce and excrete the quorum quenching protein RIP.
To do this we compose a plasmid containing a promoter, which should either be constitutive or inducible. After the promoter sequence we have a RBS, and then our RIP sequence, which we composted from the amino acid sequence of the protein and made in PCR via two costumed primers. We are working with a clean RIP sequence and a RIP sequence with an export sequence on. After the RIP sequence we have a terminator. It all has to be incorporated into an ampicillin resistant plasmid backbone.
We are trying with the two different promotors, because we don’t know whether a high concentration of RIP will quorum quench the E. Coli it self and it will there for be practical for us to control the rate of transcription. On the other hand we know that a higher concentration of RIP is more efficient at quorum quenching S. Aureus, and it will therefore be more efficient if the plasmid is transcribed at all times. Furthermore if the export of the protein out of the cell is weak, an overproduction of the protein might puncture the cell so RIP will leak out. This will of course kill the cell, but they could be replaced.
