Team:Gaston Day School/Project

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<h1 >WELCOME TO iGEM 2014! </h1>
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<p>Your team has been approved and you are ready to start the iGEM season!
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<br>On this page you can document your project, introduce your team members, document your progress <br> and share your iGEM experience with the rest of the world! </p>
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<br>
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<p style="color:#E7E7E7"> <a href="https://2014.igem.org/wiki/index.php?title=Team:Gaston_Day_School/Project&action=edit"style="color:#FFFFFF"> Click here  to edit this page!</a> </p>
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<h1 id="mainhead" style="color:#072751" class="show" align="center"> 2014 GDS iGEM Project Page</p>
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            <h2 style="color:#072751">>Project</h2>
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<a href="https://2014.igem.org/Team:Gaston_Day_School#home"><p class="show" id="pad">Home<p></a>
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                <a href="https://2014.igem.org/Team:Gaston_Day_School/Team#team">
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<p class="show" id="pad">Members<p>
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                </a>
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<a href="https://2014.igem.org/Team:Gaston_Day_School/Project#project">
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                </a>
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                </a>
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<a href="https://2014.igem.org/Team:Gaston_Day_School/Modeling#models">
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                </a>
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                <a href="https://2014.igem.org/Team:Gaston_Day_School/Attributions#attrib">
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<p class="show" id="pad">Attributions<p>
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                </a>
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                <a href="https://2014.igem.org/Main_Page#igem">
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                    <a href="https://2014.igem.org/Team:Gaston_Day_School/biofuels#biofuels">
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<h2 class="hide" id="head" id="pad">Biofuels</h2>
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                        </a>
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<p class="show" id="pad">
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                            The rising cost of petroleum, coupled with the environmental concerns that go with its use, has led to a recent increase in biofuel research.  With this research has come developments in using bacteria to produce biofuels such as isobutanol and ethanol. These alcohols are favored because they can easily be swapped into our current infrastructure of car and truck engines. At Gaston Day School, we have decided to launch a biofuel-focused project. To create the alcohols, we are developing alcohol-resistant strains of E. coli through artificial selection. Also, we are using PCR to amplify and ligate the genes GlmZ, GlmY, and IlmV, which are used in native alcohol production. The combination of these genes and the alcohol resistant strains are the first steps in our new biofuels project.
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<br>
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<h3>References </h3>
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<br>Special Issues with an Isobutanol Resistant Strain of E. coli
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<p>
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<br>
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iGEM teams are encouraged to record references you use during the course of your research. They should be posted somewhere on your wiki so that judges and other visitors can see how you though about your project and what works inspired you. </p>  
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<br> Any bacterial strain that is resistant to an alcohol will have to be handled carefully. While isobutanol is not currently used as a cleaner, several other alcohols are. If there is cross-reactivity between the resistance pathways for isobutanol resistance and resistance to ethanol or to isopropanol, we could have a strain that is impervious to several standard cleaning methods. Atsugi, et al. (2010) stated that they did not see any decrease in sensitivity to ethanol in the isobutanol resistant strain developed in their lab. Studies are currently underway to determine if our isobutanol resistant strain shows any change in resistance to ethanol or to isopropanol. Cleaning procedures in the lab have been changed so that surfaces are decontaminated with 10% bleach since there is a possibility that the strain we are working with may be resistant to other alcohols.
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<br> If this strain becomes commercially useful, several options exist for decreasing the risk if the strain is accidentally released. Ideally, a kill switch can be incorporated in the strain that requires the presence of a suppressor molecule in the medium. If the strain is released, the suppressor will not be present which will activate the kill switch and prevent the released bacterium from surviving. Several variations of kill switches can be found in the Biobrick registry. K176036 is a Tetracycline repressible construct that can kill cells, for example. In our lab, cleaning protocols will have to be adjusted to account for a possibly ethanol resistant bacterial strain. Rather than wiping hands and surfaces with hand sanitizer and/or alcohol, hands should be washed with soap and water and surfaces decontaminated with 10% bleach. Studies done by the Gaston Day School 2009 team showed that the kill rate of 10% bleach is very rapid and almost 100% effective.
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<br>
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<br> Tests are underway in the lab to determine the sensitivity of our isobutanol strain to ethanol and isopropanol. Plans are also being made to incorporate some form of repressible kill switch into the strain.
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<br>                                  
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<br>Atsugi, S., Wu, T., Machado, I. M., Huang, W., Chen, P., Pellegrini, M., and Liao, J.C., (2010). Evolution, Genomic Analysis, and Reconstruction of Isobutanol Tolerance in E. coli. Molec. Says. Bio 6:449.
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<p> You can use these subtopics to further explain your project</p>
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                    <div class="col-1-2">
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                    <a href="https://2014.igem.org/Team:Gaston_Day_School/cadmiumdetector#cadmiumdetector">
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<h2 id="head" id="pad">Cadmium Detector</h2>
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                        </a>
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<p class="show" id="pad">
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The surrounding areas of Duke Energy’s Buck Steam Station have unintentionally been affected with millions of tons of coal ash containing multiple toxic chemicals including cadmium. The release of this ash has caused the water to become a health hazard with the potential to cause a wide range of symptoms: flu-like symptoms, kidney damage, fragile bones, and possibly death through prolonged exposure. To minimize the damage caused by cadmium in water both locally and globally, our 2012 team created several heavy metal detectors, but in 2013 we decided to concentrate on the cadmium detector. The detector responds to the presence of cadmium with green fluorescence. Next, the team worked to increase the sensitivity levels of our detector. Our detector needed to be able to respond to cadmium at low enough levels that the detection would be useful and the presence of cadmium would not already be apparent. This year, we completed the addition of the 2007 Cambridge team's sensitivity tuners to our detector. The sensitivity tuners amplify the signal received by the detector. At the end of last year, after adding the sensitivity tuners, we began to see indications of a peak at lower levels of cadmium than we had previously thought. To define that peak, we used test points that were closer together. We discovered a peak of fluorescence and identified our detection points.
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<li>Overall project summary</li>
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<li>Project Details</li>
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<li>Materials and Methods</li>
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<li>The Experiments</li>
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<li>Results</li>
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<li>Data analysis</li>
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<li>Conclusions</li>
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It's important for teams to describe all the creativity that goes into an iGEM project, along with all the great ideas your team will come up with over the course of your work.
 
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It's also important to clearly describe your achievements so that judges will know what you tried to do and where you succeeded. Please write your project page such that what you achieved is easy to distinguish from what you attempted.
 
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Latest revision as of 01:43, 18 October 2014

2014 GDS iGEM Project Page

>Project

The rising cost of petroleum, coupled with the environmental concerns that go with its use, has led to a recent increase in biofuel research. With this research has come developments in using bacteria to produce biofuels such as isobutanol and ethanol. These alcohols are favored because they can easily be swapped into our current infrastructure of car and truck engines. At Gaston Day School, we have decided to launch a biofuel-focused project. To create the alcohols, we are developing alcohol-resistant strains of E. coli through artificial selection. Also, we are using PCR to amplify and ligate the genes GlmZ, GlmY, and IlmV, which are used in native alcohol production. The combination of these genes and the alcohol resistant strains are the first steps in our new biofuels project.

Special Issues with an Isobutanol Resistant Strain of E. coli

Any bacterial strain that is resistant to an alcohol will have to be handled carefully. While isobutanol is not currently used as a cleaner, several other alcohols are. If there is cross-reactivity between the resistance pathways for isobutanol resistance and resistance to ethanol or to isopropanol, we could have a strain that is impervious to several standard cleaning methods. Atsugi, et al. (2010) stated that they did not see any decrease in sensitivity to ethanol in the isobutanol resistant strain developed in their lab. Studies are currently underway to determine if our isobutanol resistant strain shows any change in resistance to ethanol or to isopropanol. Cleaning procedures in the lab have been changed so that surfaces are decontaminated with 10% bleach since there is a possibility that the strain we are working with may be resistant to other alcohols.

If this strain becomes commercially useful, several options exist for decreasing the risk if the strain is accidentally released. Ideally, a kill switch can be incorporated in the strain that requires the presence of a suppressor molecule in the medium. If the strain is released, the suppressor will not be present which will activate the kill switch and prevent the released bacterium from surviving. Several variations of kill switches can be found in the Biobrick registry. K176036 is a Tetracycline repressible construct that can kill cells, for example. In our lab, cleaning protocols will have to be adjusted to account for a possibly ethanol resistant bacterial strain. Rather than wiping hands and surfaces with hand sanitizer and/or alcohol, hands should be washed with soap and water and surfaces decontaminated with 10% bleach. Studies done by the Gaston Day School 2009 team showed that the kill rate of 10% bleach is very rapid and almost 100% effective.

Tests are underway in the lab to determine the sensitivity of our isobutanol strain to ethanol and isopropanol. Plans are also being made to incorporate some form of repressible kill switch into the strain.

Atsugi, S., Wu, T., Machado, I. M., Huang, W., Chen, P., Pellegrini, M., and Liao, J.C., (2010). Evolution, Genomic Analysis, and Reconstruction of Isobutanol Tolerance in E. coli. Molec. Says. Bio 6:449.

The surrounding areas of Duke Energy’s Buck Steam Station have unintentionally been affected with millions of tons of coal ash containing multiple toxic chemicals including cadmium. The release of this ash has caused the water to become a health hazard with the potential to cause a wide range of symptoms: flu-like symptoms, kidney damage, fragile bones, and possibly death through prolonged exposure. To minimize the damage caused by cadmium in water both locally and globally, our 2012 team created several heavy metal detectors, but in 2013 we decided to concentrate on the cadmium detector. The detector responds to the presence of cadmium with green fluorescence. Next, the team worked to increase the sensitivity levels of our detector. Our detector needed to be able to respond to cadmium at low enough levels that the detection would be useful and the presence of cadmium would not already be apparent. This year, we completed the addition of the 2007 Cambridge team's sensitivity tuners to our detector. The sensitivity tuners amplify the signal received by the detector. At the end of last year, after adding the sensitivity tuners, we began to see indications of a peak at lower levels of cadmium than we had previously thought. To define that peak, we used test points that were closer together. We discovered a peak of fluorescence and identified our detection points.

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