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<b>How to calculate a Critical Genes/Reactions</b><br>
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<b>How to calculate the set of Critical Genes/Reactions</b><br>
 
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OptFlux allows the users to define which are the genes or reactions that are essential for the strain to survive, i.e. to keep a value of biomass/ growth significantly different from zero. The essential genes/ reactions can be calculated using Flux Balance Analysis. Also, the software allows the user to load thse genes or reactions from a file (if they are available). The list of essential genes/ reactions can be manually edited, allowing users to add or remove elements, given their knowledge or the purpose of their experiments.<br>
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OptFlux allows the users to define which are the genes or reactions that are essential for the strain to survive, i.e. to keep a value of growth (biomass reaction flux) different from zero. The essential genes/ reactions can be calculated using Flux Balance Analysis. Also, the software allows the user to load these genes or reactions from a file (if they are available). The list of essential genes/ reactions can be manually edited, allowing users to add or remove elements, given their knowledge or the purpose of their experiments.<br>
 
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You
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You can access the "Calculate Critical Genes/Reactions" option under the "Model Simplification" menu or by right clicking on the Metabolic Model icon on the clipboard.<br>
can access
 
the "Calculate Critical Genes/Reactions" option under the "Model Simplification" menu or
 
right clicking on the Metabolic Model icon on the clipboard.<br>
 
 
<div style="display: block; text-align: left;">http://sites.google.com/site/optfluxhowtos/howtos/model-simplification/performing-structural-simplification/CalculateCriticalMenu.png</div>
 
<div style="display: block; text-align: left;">http://sites.google.com/site/optfluxhowtos/howtos/model-simplification/performing-structural-simplification/CalculateCriticalMenu.png</div>
 
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<b>1.Biomass Flux</b><br>
 
<b>1.Biomass Flux</b><br>
Choose the flux related to the biomass / growth.<br>
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Choose the reaction related to the biomass / growth.<br>
 
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<b>2.Critical Information</b><br>
 
<b>2.Critical Information</b><br>
Choose if you want to calculate essential reactions or genes (if GPR information available).<br>
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Choose if you want to calculate essential reactions or essential genes (if GPR information available).<br>
 
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<i><b>3. Select Environmental Conditions</b></i><br>
 
<i><b>3. Select Environmental Conditions</b></i><br>
If you have loaded/created environmental conditions you can select them
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If you have created environmental conditions you can select them to be used as constraints in the critical genes/reactions calculation. This means that in this case you will calculate essential genes/reactions in a given environment.<br>
to use as constraints in the critical genes/reactions calculation. This means that in this case you will calculate essential genes/reactions in a given environment.<br>
 
 
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And that's all !! Now you can press OK and check the results in the clipboard.<br>
 
And that's all !! Now you can press OK and check the results in the clipboard.<br>
 
<div style="display: block; text-align: left;">http://sites.google.com/site/optfluxhowtos/howtos/model-simplification/performing-structural-simplification/CalculateCriticalSolution.png</div>
 
<div style="display: block; text-align: left;">http://sites.google.com/site/optfluxhowtos/howtos/model-simplification/performing-structural-simplification/CalculateCriticalSolution.png</div>
 
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Latest revision as of 19:19, 17 November 2009

How to calculate the set of Critical Genes/Reactions

OptFlux allows the users to define which are the genes or reactions that are essential for the strain to survive, i.e. to keep a value of growth (biomass reaction flux) different from zero. The essential genes/ reactions can be calculated using Flux Balance Analysis. Also, the software allows the user to load these genes or reactions from a file (if they are available). The list of essential genes/ reactions can be manually edited, allowing users to add or remove elements, given their knowledge or the purpose of their experiments.

You can access the "Calculate Critical Genes/Reactions" option under the "Model Simplification" menu or by right clicking on the Metabolic Model icon on the clipboard.


In the options you can select the model/project to work, and set up the process.


1.Biomass Flux
Choose the reaction related to the biomass / growth.

2.Critical Information
Choose if you want to calculate essential reactions or essential genes (if GPR information available).

3. Select Environmental Conditions
If you have created environmental conditions you can select them to be used as constraints in the critical genes/reactions calculation. This means that in this case you will calculate essential genes/reactions in a given environment.

And that's all !! Now you can press OK and check the results in the clipboard.