Team:IvyTech-South Bend

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Welcome to the Homepage of the
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DNA Architects of
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This is a template page. READ THESE INSTRUCTIONS.
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SouthBend & Mishawaka, Indiana, USA
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You are provided with this team page template with which to start the iGEM season.  You may choose to personalize it to fit your team but keep the same "look." Or you may choose to take your team wiki to a different level and design your own wiki.  You can find some examples <a href="https://2009.igem.org/Help:Template/Examples">HERE</a>.
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''The Arsenator'': A Tuneable Biosensor for Arsenic!!!"''
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== Optimization of a Bacteria-based Biosensor for Arsenic in Drinking Water ==
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Millions of people worldwide are exposed to toxic levels of arsenic in drinking water. Bacteria have an efflux operon regulated by an arsenic sensitive inducible promoter. It is possible through recombinant DNA technology to isolate this promoter and combine it to a reporter system and transform bacteria to create a biosensor for arsenic. Induction of the arsenic-sensitive promoter occurs by the binding of arsenite to an inhibitory protein, de-repressing transcription. We have observed the arsenic responsive promoter from E. coli to have a consistent, low level of background induction. We have tested the hypothesis that by increasing the quantity of the inhibitory protein in the cell, we can quantifiably raise the threshold of the response. Our intention is to create a tunable biosensor to form the basis of a low-tech device that can reliably detect dangerous levels of arsenic in water for use in the developing world.
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|You can write a background of your team here.  Give us a background of your team, the members, etc.  Or tell us more about something of your choosing.
 
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''Tell us more about your project.  Give us background.  Use this as the abstract of your project.  Be descriptive but concise (1-2 paragraphs)''
 
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|align="center"|[[Team:IvyTech-South_Bend | Team IvyTech-South_Bend]]
 
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Latest revision as of 03:19, 4 October 2012

Welcome to the Homepage of the
DNA Architects of
SouthBend & Mishawaka, Indiana, USA

The Arsenator: A Tuneable Biosensor for Arsenic!!!"


Optimization of a Bacteria-based Biosensor for Arsenic in Drinking Water


Millions of people worldwide are exposed to toxic levels of arsenic in drinking water. Bacteria have an efflux operon regulated by an arsenic sensitive inducible promoter. It is possible through recombinant DNA technology to isolate this promoter and combine it to a reporter system and transform bacteria to create a biosensor for arsenic. Induction of the arsenic-sensitive promoter occurs by the binding of arsenite to an inhibitory protein, de-repressing transcription. We have observed the arsenic responsive promoter from E. coli to have a consistent, low level of background induction. We have tested the hypothesis that by increasing the quantity of the inhibitory protein in the cell, we can quantifiably raise the threshold of the response. Our intention is to create a tunable biosensor to form the basis of a low-tech device that can reliably detect dangerous levels of arsenic in water for use in the developing world.


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