Saint Petersburg\Theoretical study

From 2007.igem.org

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== Trigger ==
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==Simple Trigger ==
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The main part of system is simple trigger, containing two repressors and to promotors.
The main part of system is simple trigger, containing two repressors and to promotors.
Each repressor inhibit another repressor synthesis.
Each repressor inhibit another repressor synthesis.
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[[Image:Saint_Petersburg_Trigger_sh.jpg|frame|left|Simple trigger]]
Concentration inhibitors x and y describes the next system equations.
Concentration inhibitors x and y describes the next system equations.
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[[Image:Saint_Petersburg_Trigger_eq.gif]]
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[[Image:Saint_Petersburg_Trigger_eq.gif|Simple trigger equations]]
Here the constants D, K, n and r are used to describe the promoter strength and inhibition efficiency.
Here the constants D, K, n and r are used to describe the promoter strength and inhibition efficiency.
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This system can hold state with high concentration of one inhibitor, and low concentraion of another inhibitor.
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But we need to have ''only one'' stable state, another state must be unstable, and exist only in high copper concentrations.

Revision as of 13:46, 16 July 2007

The Tri-stable Toggle Switch project was performed by Brown iGEM2006 team, but we need to adapt this to our needs.


Simple Trigger

The main part of system is simple trigger, containing two repressors and to promotors. Each repressor inhibit another repressor synthesis.

Simple trigger

Concentration inhibitors x and y describes the next system equations.

Simple trigger equations

Here the constants D, K, n and r are used to describe the promoter strength and inhibition efficiency.

This system can hold state with high concentration of one inhibitor, and low concentraion of another inhibitor. But we need to have only one stable state, another state must be unstable, and exist only in high copper concentrations.