Team:Trieste/notebook9

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    <div id="suicide" class="notebook_section">
    <div id="suicide" class="notebook_section">
    <h2 class="notebook_title">Suicide System</h2>
    <h2 class="notebook_title">Suicide System</h2>
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We loaded the gel with the previously amplified -week 6- T5CumateOperator-RBS_B0034, eluted the fragment and then we tried to cut it, but it did not work as expected, probably because of the restriction enzymes do not work properly at the extremities.</br>
 +
</br>
 +
We approached to another strategy: we loaded the gel with the amplified, eluted the fragment and then amplified inside the pGEM vector. In this way, we were able to amplified the fragment with the primer pair SP6 and T7. </br>
 +
 
 +
The amplified were then cut with EcoRI/BamHI, heat inactivated and dephosphorylated at the extremities. It worked!!</br>
 +
 
 +
We were finally able to clone it upstream the T4 holin (BBa_K112000).  
    </div>
    </div>
    <div id="antibody" class="notebook_section">
    <div id="antibody" class="notebook_section">
    <h2 class="notebook_title">Antibody</h2>
    <h2 class="notebook_title">Antibody</h2>
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Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
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In order to assembly the final plasmid, we cloned LPP-OmpA-scFv downstream the constitutive promoter J23100. First, we amplified this plasmid in DH5alpha because Nissle are not competent enough to be transformed with a ligation. We tested its expression by SDS-PAGE and Western blotting and the results obtained testify that this protein is richly express into our bacteria.</br></br>
 +
Eventually, we introduced our plasmid into <i>E.coli</i> Nissle.  
 +
 
    </div>
    </div>
    <div id="chassis" class="notebook_section">
    <div id="chassis" class="notebook_section">
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    <h2 class="notebook_title">Chassis</h2>
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    <h2 class="notebook_title">Cumate-Switch Regulation</h2>
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Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
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<u><b>CymR</b></u>
 +
<br/>
 +
We cloned the fragment J23100-CymR-B0015 downstream the same fragment to obtain the double CymR. The results were all negative so we made the same ligation over and over untill we obtained some positve colonies that seems to have the couple J23100-CymR-B0015 by PCR.
 +
<br/>
 +
<br/>
 +
<u><b>T5 PROMOTER - CUMATE OPERATOR</b></u>
 +
<br/>
 +
We cut them Xba/Pst and then we ligated this fragment in the J61002 plasmid Spe/Pst containing the J23100-CymR-B0015 fragment. We obtained some positive colonies.
    </div>
    </div>
                 </div>
                 </div>
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                     <li><a href="https://2012.igem.org/Team:Trieste/notebook7">Week 7</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook7">Week 7</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook8">Week 8</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook8">Week 8</a></li>
-
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook9">Week 9</a></li>
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                     <li class="select" ><a href="https://2012.igem.org/Team:Trieste/notebook9">Week 9</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook10">Week 10</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook10">Week 10</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook11">Week 11</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook11">Week 11</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook12">Week 12</a></li>
                     <li><a href="https://2012.igem.org/Team:Trieste/notebook12">Week 12</a></li>
 +
                    <li><a href="https://2012.igem.org/Team:Trieste/notebooklast">Post European-Jamboree</a></li>
                 </ul>
                 </ul>
                 <img src="https://static.igem.org/mediawiki/2012/b/b0/Team_trieste.jpg" alt="Team iGEM 2012" id="igem_team" />
                 <img src="https://static.igem.org/mediawiki/2012/b/b0/Team_trieste.jpg" alt="Team iGEM 2012" id="igem_team" />
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                     </div>
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Latest revision as of 18:08, 26 October 2012

Week 9

More

Suicide System

We loaded the gel with the previously amplified -week 6- T5CumateOperator-RBS_B0034, eluted the fragment and then we tried to cut it, but it did not work as expected, probably because of the restriction enzymes do not work properly at the extremities.

We approached to another strategy: we loaded the gel with the amplified, eluted the fragment and then amplified inside the pGEM vector. In this way, we were able to amplified the fragment with the primer pair SP6 and T7.
The amplified were then cut with EcoRI/BamHI, heat inactivated and dephosphorylated at the extremities. It worked!!
We were finally able to clone it upstream the T4 holin (BBa_K112000).

Antibody

In order to assembly the final plasmid, we cloned LPP-OmpA-scFv downstream the constitutive promoter J23100. First, we amplified this plasmid in DH5alpha because Nissle are not competent enough to be transformed with a ligation. We tested its expression by SDS-PAGE and Western blotting and the results obtained testify that this protein is richly express into our bacteria.

Eventually, we introduced our plasmid into E.coli Nissle.

Cumate-Switch Regulation

CymR
We cloned the fragment J23100-CymR-B0015 downstream the same fragment to obtain the double CymR. The results were all negative so we made the same ligation over and over untill we obtained some positve colonies that seems to have the couple J23100-CymR-B0015 by PCR.

T5 PROMOTER - CUMATE OPERATOR
We cut them Xba/Pst and then we ligated this fragment in the J61002 plasmid Spe/Pst containing the J23100-CymR-B0015 fragment. We obtained some positive colonies.
Università degli studi di Trieste ICGEB Illy Fondazione Cassa di Risparmio
iGEM 2012 iGEM 2012 iGEM 2012 iGEM 2012 iGEM 2012 iGEM 2012
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