Team:Imperial College/Summary

From 2008.igem.org

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{{Imperial/StartPage2}}
{{Imperial/StartPage2}}
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=== Summer Summary ===
 
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{{Imperial/Box2|Our Approach|[[Image:Cycle.PNG|center|500px]]<br>
 
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The Imperial College 2008 team chose to take the engineering approach to the biofabricator project. This framework has helped us organised the project and team.  |}}
 
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=== Project Summary ===
{{Imperial/Box1|Design|
{{Imperial/Box1|Design|
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In order to achieve our specifications of design previously described, we require the following devices;  
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In order to achieve our specifications of design, we require the following devices;  
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*'''Light sensing device''' - Converting a light input into a PoPS output,
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*'''Light sensing device''' - Converting a light input into a PoPS output
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*'''Biomaterial production device'''- Converting a PoPS input into an output of biomaterial production,
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*'''Biomaterial production device''' - Converting a PoPS input into an output of biomaterial production
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*'''Motility Control device''' - Converting a PoPS input into an output of motility arrest,
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*'''Motility Control device''' - Converting a PoPS input into an output of motility arrest
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*'''Integration device''' - To allow integration and selection of our genetic constructs and devices into ''B,subtilis'',
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*'''Integration device''' - To allow integration and selection of our genetic constructs and devices into ''B,subtilis''
<br>
<br>
Each of these constructs makes up the '''final device''' which is shown below:
Each of these constructs makes up the '''final device''' which is shown below:
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(AB is our antibiotic resistance cassette, ''ytvA'' is the gene controlling the light-sensing pathway, ''SB'' is the biomaterial, ''epsE'' the clutch and the 5' and 3' sections are integration sites. Light-inducible promoters are labelled with an 'L')
(AB is our antibiotic resistance cassette, ''ytvA'' is the gene controlling the light-sensing pathway, ''SB'' is the biomaterial, ''epsE'' the clutch and the 5' and 3' sections are integration sites. Light-inducible promoters are labelled with an 'L')
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|}}
|}}
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{{Imperial/Box1|Modeling - Overview|
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{{Imperial/Box1|Modelling|
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The Dry Lab used computational simulations to explore the different properties of the Biofabricator. Our activities are summarized on this page. To find out more please visit the [https://2008.igem.org/Team:Imperial_College/Dry_Lab '''Dry Lab Hub'''].
====== Growth Curve ======
====== Growth Curve ======
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We have developed a simple model for the growth of B. subtilis where the rate of growth is related to the amount of nutrients available. To this purpose we have exploited the ideas put forward by last year's Imperial College  iGEM team for their modelling of F2620 in a cell-free system.
====== Genetic Circuit ======
====== Genetic Circuit ======
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We have also built mathematical models for the time evolution of the basic genetic circuits that comprise our device. We have verified which model best describe the behaviour of the circuit better by using laboratory data.
====== Motility Analysis ======
====== Motility Analysis ======
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Finally, we have carried out a detailed analysis of the swimming motility of B. subtilis, which led us, among other  things, to develop a simple mechanical model for the swimming motility of B. subtilis. Using manual tracking, we were able to extract x,y coordinate data from the cell trajectory. This has allowed us to fit experimental data with our model. The data suggest that flagellar force of ''B. subtilis'' is Exponentially distributed.
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All model simulations and motility data analysis were carried out with MATLAB. Cell tracking was done with ImageJ via the Manual Tracking Plugin. All our MATLAB files can be found in the Appendices section.
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[[Image:Motility_Summary.jpg|center|600px]]<br>
|}}
|}}
{{Imperial/Box1|Implementation|
{{Imperial/Box1|Implementation|
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Following the design stage of our project we moved on to the implementation stage. This involved construction of a cloning strategy, construction of our biobricks and transformation and characterisation of these biobricks in ''B.subtilis''. For more information on this aspect of the project please see the [https://2008.igem.org/Team:Imperial_College/Wet_Lab Wet Lab Hub]
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Following the design stage of our project we moved on to the implementation stage. This involved construction of a cloning strategy, construction of our biobricks and transformation and characterisation of these biobricks in ''B. subtilis''. For more information on this aspect of the project please see the [https://2008.igem.org/Team:Imperial_College/Wet_Lab '''Wet Lab Hub'''].
[[Image:Implementation.PNG|center|600px]]
[[Image:Implementation.PNG|center|600px]]
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}}
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|}}
{{Imperial/Box1|Testing|
{{Imperial/Box1|Testing|
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The wet lab team was responsible for designing the constructs and setting up the cloning strategy to get us from the starting parts to the finished system. We were also responsible for designing and BioBricking the starting parts, of course, and designing and implementing the integration brick technique. This section shows some of the major results that came from the wet lab over the summer. Motility results can go in the dry lab overview above.
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The testing and validation of our project can be split into three main areas;
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====== Transformation ======
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*'''Work with ''B. subtilis''''' - Including characterisation of growth curves and transformation,
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Transformation stuff goes here...
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*'''Extensive Characterisation ''' of new ''B.subtilis'' biobricks, Chloramphenicol resistance gene and motility
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====== Calibration Curve ======
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*'''Production of Biomaterials in ''B. subtilis'''''
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Calibration curve results go here...
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|Stuff}}
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If you'd like to see more information on the key results from the testing and validation, you can find it on the [https://2008.igem.org/Team:Imperial_College/Major_Results '''Results Page'''].
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=====Results=====
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|[[Image:Result.PNG|center|300px]]}}
{{Imperial/Box1|Achievements|
{{Imperial/Box1|Achievements|
Here is a summary of the achievements of the Imperial College 2008 team:
Here is a summary of the achievements of the Imperial College 2008 team:
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*Submitted x..number of documented parts to the registry,
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*Submitted 45 documented parts to the Registry
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*Characterized and improved the existing part.....,
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*<html><a target="_blank" href="https://2008.igem.org/Team:Imperial_College/CAT"><b>Characterized</b></a></html> and improved the existing part <html><a href="http://partsregistry.org/wiki/index.php/Part:BBa_J31005"  target="_blank">BBa J31005</a></html> (chloramphenicol acetyl transferase, CAT)
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*Developed integration bricks, to allow devices to be constructed that can then be excised and planted into ''B. subtilis''
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*<html><a target="_blank" href="https://2008.igem.org/Team:Imperial_College/Biobricks"><b>Characterized</b></a></html> the new promoter and ribosome binding sites biobricks <html><a target="_blank" href="http://partsregistry.org/wiki/index.php/Part:BBa_K143079">BBa K143079</a></html> and <html><a target="_blank" href="http://partsregistry.org/wiki/index.php/Part:BBa_K143082">BBa K143082</a></html> that we submitted this year.
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*Layed the groundwork for future teams to work with ''B. subtilis'' by BioBricking promoters, RBSs, terminators and so on and characterising them
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*Developed integration sequences for Biobricks, to allow devices to be constructed that can then be excised and planted into ''B. subtilis''
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*Laid the groundwork for future teams to work with ''B. subtilis'' by BioBricking and characterising promoters, RBSs, integration sequences, coding sequences and complex devices
*Showed that expansion into other organisms is a definite possibility!
*Showed that expansion into other organisms is a definite possibility!
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*Developed a method for tracking and analysing bacterial motility
*Helped Bristol by sending them a mini-iGEM project: ''Chemotactic dot-to-dot'' with information on quorum sensing and directed movement
*Helped Bristol by sending them a mini-iGEM project: ''Chemotactic dot-to-dot'' with information on quorum sensing and directed movement
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*Helped Bristol by sending them a part (BBa_J37015) from our 2007 stock which was an empty vector in the Registry
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*Helped Bristol by sending them part <html><a href="http://partsregistry.org/wiki/index.php/Part:BBa_J37015" target="_blank">BBa_J37015</a></html> (AHL generator + GFP) from our 2006 stock which was an empty vector in the Registry
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}}
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*Helped Cambridge by sending them a plate of ''Synechocystis'' PCC680 and a genome preparation
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|}}
<hr><br>
<hr><br>
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{{Imperial/Box2||Of course, that's a very simplified description of our project. We expanded upon our project by looking into possible areas for real-world application; for a case-study of such an implementation check out how our project fits in with [[Team:Imperial_College/Biocouture | '''>>> Biocouture >>>''']]}}
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{{Imperial/Box2||Of course, that is a very simplified description of our project. We expanded upon our project by looking into possible areas for real-world applications. For a case-study of such an implementation, check out how our project fits in with [[Team:Imperial_College/Cellulose | '''>>> Biocouture >>>''']]|}}
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{{Imperial/EndPage|Chassis_2|Biocouture}}
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{{Imperial/EndPage|Chassis_2|Cellulose}}

Latest revision as of 03:12, 30 October 2008


Project Summary

Design

In order to achieve our specifications of design, we require the following devices;

  • Light sensing device - Converting a light input into a PoPS output
  • Biomaterial production device - Converting a PoPS input into an output of biomaterial production
  • Motility Control device - Converting a PoPS input into an output of motility arrest
  • Integration device - To allow integration and selection of our genetic constructs and devices into B,subtilis


Each of these constructs makes up the final device which is shown below:

Genetic circuit.PNG

(AB is our antibiotic resistance cassette, ytvA is the gene controlling the light-sensing pathway, SB is the biomaterial, epsE the clutch and the 5' and 3' sections are integration sites. Light-inducible promoters are labelled with an 'L')


Modelling

The Dry Lab used computational simulations to explore the different properties of the Biofabricator. Our activities are summarized on this page. To find out more please visit the Dry Lab Hub.

Growth Curve

We have developed a simple model for the growth of B. subtilis where the rate of growth is related to the amount of nutrients available. To this purpose we have exploited the ideas put forward by last year's Imperial College iGEM team for their modelling of F2620 in a cell-free system.

Genetic Circuit

We have also built mathematical models for the time evolution of the basic genetic circuits that comprise our device. We have verified which model best describe the behaviour of the circuit better by using laboratory data.

Motility Analysis

Finally, we have carried out a detailed analysis of the swimming motility of B. subtilis, which led us, among other things, to develop a simple mechanical model for the swimming motility of B. subtilis. Using manual tracking, we were able to extract x,y coordinate data from the cell trajectory. This has allowed us to fit experimental data with our model. The data suggest that flagellar force of B. subtilis is Exponentially distributed.

All model simulations and motility data analysis were carried out with MATLAB. Cell tracking was done with ImageJ via the Manual Tracking Plugin. All our MATLAB files can be found in the Appendices section.

Motility Summary.jpg


Implementation

Following the design stage of our project we moved on to the implementation stage. This involved construction of a cloning strategy, construction of our biobricks and transformation and characterisation of these biobricks in B. subtilis. For more information on this aspect of the project please see the Wet Lab Hub.

Implementation.PNG

Testing

The testing and validation of our project can be split into three main areas;

  • Work with B. subtilis - Including characterisation of growth curves and transformation,
  • Extensive Characterisation of new B.subtilis biobricks, Chloramphenicol resistance gene and motility
  • Production of Biomaterials in B. subtilis

If you'd like to see more information on the key results from the testing and validation, you can find it on the Results Page.

Results
Result.PNG

Achievements

Here is a summary of the achievements of the Imperial College 2008 team:

  • Submitted 45 documented parts to the Registry
  • Characterized and improved the existing part BBa J31005 (chloramphenicol acetyl transferase, CAT)
  • Characterized the new promoter and ribosome binding sites biobricks BBa K143079 and BBa K143082 that we submitted this year.
  • Developed integration sequences for Biobricks, to allow devices to be constructed that can then be excised and planted into B. subtilis
  • Laid the groundwork for future teams to work with B. subtilis by BioBricking and characterising promoters, RBSs, integration sequences, coding sequences and complex devices
  • Showed that expansion into other organisms is a definite possibility!
  • Developed a method for tracking and analysing bacterial motility
  • Helped Bristol by sending them a mini-iGEM project: Chemotactic dot-to-dot with information on quorum sensing and directed movement
  • Helped Bristol by sending them part BBa_J37015 (AHL generator + GFP) from our 2006 stock which was an empty vector in the Registry
  • Helped Cambridge by sending them a plate of Synechocystis PCC680 and a genome preparation



Of course, that is a very simplified description of our project. We expanded upon our project by looking into possible areas for real-world applications. For a case-study of such an implementation, check out how our project fits in with >>> Biocouture >>>