Team:Groningen/Modelling

From 2009.igem.org

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(Models: Image as link to modelling page.)
(The purpose of modelling.)
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[[Category:Team:Groningen/Roles/Modeller|Modelling]]
[[Category:Team:Groningen/Roles/Modeller|Modelling]]
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Our initial ideas on how and what to model can be found at [[Team:Groningen/Brainstorm/Modelling|Brainstorm/Modelling]].
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Modelling is an integral part of synthetic biology and most of our modelling results are therefore integrated with our theoretical information and lab results on our [[Team:Groningen/Project|project pages]]. In general we have tried to make as much of our model as possible interactively available on our wiki. Specifically, we have constructed several interactive calculators that can be used to explore our model, some including interactive [https://2009.igem.org/Template:Graph graphs] to show the results.
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Usage of graphs in wiki: [https://2009.igem.org/Template:Graph Graphs]
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In our project we use modelling for the following purposes:
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*'''Description''' of our system. By modelling the system the different relationships between components in our system are made explicit.
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*'''Gaining insight''' in our system. Having modelled our system we can see how different variables interact, giving essential insights into how our system functions.
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*'''Verification''' of our design. For example, we looked at the number of gas vesicles needed to let our cells float, to check whether it should be possible.
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*'''Making design choices'''. We have shown that constitutive expression of ArsR can indeed significantly increase accumulation levels, and we would be able to show the impact of this constitutively expressed ArsR regulating the ars promoter on the expression of the GVP cluster {{todo}}.
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*'''Designing tests'''. By looking at the behaviour of GlpF/ArsB (importer/exporter for As(III)) we determined what range of concentrations would be interesting to use in our uptake experiments.
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*{{todo}}'''Analysis''' of results. Once we have uptake experiments (and new promoter measurements?) we could try to analyze the results to estimate further constants and/or explain the results.
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Our initial ideas on how and what to model (including a survey of previously used software) can be found at [[Team:Groningen/Brainstorm/Modelling|Brainstorm/Modelling]].
==Models==
==Models==
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Apart from some computations on [[Team:Groningen/Project/Vesicle|gas vesicles]] we have the following model involving import, export and accumulation of arsenic (showing the "reactions" in the model):
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Apart from our physical model of [[Team:Groningen/Project/Vesicle|gas vesicles]] we have the following reaction model involving import, export and accumulation of arsenic (showing the "reactions" in the model):
<center>{{LinkedImage|Arsenic_filtering.png|Team:Groningen/Modelling/Arsenic}}<br/>(Click to go to our detailed [[Team:Groningen/Modelling/Arsenic|modelling page]].)</center>
<center>{{LinkedImage|Arsenic_filtering.png|Team:Groningen/Modelling/Arsenic}}<br/>(Click to go to our detailed [[Team:Groningen/Modelling/Arsenic|modelling page]].)</center>
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== Kinetic Laws ==
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<!--== Kinetic Laws ==
{{todo}} Add references.
{{todo}} Add references.
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See http://www.biomodels.net/ for a database of models.
See http://www.biomodels.net/ for a database of models.
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==Protein production==
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Concepts:
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;translation rate
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:Number of amino acids per second that are translated (per mRNA). Expressed in amino acids per second per mRNA?
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;ribosome occupancy
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:Fraction of mRNA bound to ribosomes.
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;mRNA abundance
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:Amount of mRNA (molecules per cell or concentration).
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;translational activity / protein production rate ?
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:Translation rate per mRNA times mRNA abundance (units?: 1/(mol*sec) * mol/L = 1/(sec*L)). ???
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Revision as of 09:28, 11 September 2009

[http://2009.igem.org/Team:Groningen http://2009.igem.org/wiki/images/f/f1/Igemhomelogo.png]
Modelling

Modelling is an integral part of synthetic biology and most of our modelling results are therefore integrated with our theoretical information and lab results on our project pages. In general we have tried to make as much of our model as possible interactively available on our wiki. Specifically, we have constructed several interactive calculators that can be used to explore our model, some including interactive graphs to show the results.

In our project we use modelling for the following purposes:

  • Description of our system. By modelling the system the different relationships between components in our system are made explicit.
  • Gaining insight in our system. Having modelled our system we can see how different variables interact, giving essential insights into how our system functions.
  • Verification of our design. For example, we looked at the number of gas vesicles needed to let our cells float, to check whether it should be possible.
  • Making design choices. We have shown that constitutive expression of ArsR can indeed significantly increase accumulation levels, and we would be able to show the impact of this constitutively expressed ArsR regulating the ars promoter on the expression of the GVP cluster TODO.
  • Designing tests. By looking at the behaviour of GlpF/ArsB (importer/exporter for As(III)) we determined what range of concentrations would be interesting to use in our uptake experiments.
  • TODOAnalysis of results. Once we have uptake experiments (and new promoter measurements?) we could try to analyze the results to estimate further constants and/or explain the results.

Our initial ideas on how and what to model (including a survey of previously used software) can be found at Brainstorm/Modelling.

Models

Apart from our physical model of gas vesicles we have the following reaction model involving import, export and accumulation of arsenic (showing the "reactions" in the model):

[http://2009.igem.org/Team:Groningen/Modelling/Arsenic http://2009.igem.org/wiki/images/5/54/Arsenic_filtering.png]
(Click to go to our detailed modelling page.)