BME494 Sp2014 Tran: Difference between revisions

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==Background & Proposed Application==
==Background & Proposed Application==


''' The malarial biosensor is modeled after the classical synthetic toggle switch developed in Escherichia coli, or E. Coli (Gardner et al 2000). The precedent synthetic system was developed with two different inducible states, an “on” and “off” state. The system was created using two promoter and repressor pairs. Both repressors were inhibited by a different inducer (aTc and IPTG). The promoters were placed upstream of the repressor gene of the opposite pair. This created a bistable system where only one promoter would be expressed at any one time, since the expression of a promoter repressed expression of the other promoter. To distinguish a cell between its on state and off state, a green fluorescence protein transcription gene was placed downstream of the on state promoter so the cell would exhibit green fluorescence in its on state.'''
'''BACKGROUND'''
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<!-- Incorporate information from Presentation 1. Summarize the classical synthetic device upon which your new design is based. If you post an image of a figure from a paper, include an in-text citation in the text legend. -->
<!-- Incorporate information from Presentation 1. Summarize the classical synthetic device upon which your new design is based. If you post an image of a figure from a paper, include an in-text citation in the text legend. -->
The malarial biosensor is modeled after the classical synthetic toggle switch developed in Escherichia coli, or E. Coli (Gardner et al 2000). The precedent synthetic system was developed with two different inducible states, an “on” and “off” state. The system was created using two promoter and repressor pairs. Both repressors were inhibited by a different inducer (aTc and IPTG). The promoters were placed upstream of the repressor gene of the opposite pair. This created a bistable system where only one promoter would be expressed at any one time, since the expression of a promoter repressed expression of the other promoter. To distinguish a cell between its on state and off state, a green fluorescence protein transcription gene was placed downstream of the on state promoter so the cell would exhibit green fluorescence in its on state.


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Revision as of 22:06, 21 April 2014


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Background & Proposed Application

BACKGROUND

The malarial biosensor is modeled after the classical synthetic toggle switch developed in Escherichia coli, or E. Coli (Gardner et al 2000). The precedent synthetic system was developed with two different inducible states, an “on” and “off” state. The system was created using two promoter and repressor pairs. Both repressors were inhibited by a different inducer (aTc and IPTG). The promoters were placed upstream of the repressor gene of the opposite pair. This created a bistable system where only one promoter would be expressed at any one time, since the expression of a promoter repressed expression of the other promoter. To distinguish a cell between its on state and off state, a green fluorescence protein transcription gene was placed downstream of the on state promoter so the cell would exhibit green fluorescence in its on state.

Text legend for the figure


APPLICATION OF MY PROPOSED NEW DEVICE











Design of a New Device

Text describing the image












Building the New Device

SYNTHETIC DNA LAYOUT


RESOURCES


TYPE IIS ASSEMBLY















Testing the New Device

LAC OPERON MODEL SIMULATION
I used a model of the natural Lac operon to learn how changing the parameter values changes the behavior of the system.


RELATIONSHIP BETWEEN THE LAC MODEL AND MY NEW DESIGN

Similarities:


Differences:



TESTING THE NEW DEVICE