Difference between revisions of "Team:NRP-UEA-Norwich/Collaborations/Manchester"
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<h1 class="title1">Manchester-Graz Collaboration</h1> | <h1 class="title1">Manchester-Graz Collaboration</h1> | ||
| − | <p class="space20"> The Manchester-Graz team have developed an expression system designed to regulate single and multi-gene pathways for an intestine expression. For controlling a wide range of pathways it is designed in a flexible and modular manner. They tested the production of butyrate in the gut. The pathway was incorporated into the expression system model to observe the expression of butyrate under the control of the developed system. The model generated helped us to understand how the system is dealing with pathways that consist of several enzymes at an | + | <p class="space20"> The Manchester-Graz team have developed an expression system designed to regulate single and multi-gene pathways for an intestine expression. For controlling a wide range of pathways it is designed in a flexible and modular manner. They tested the production of butyrate in the gut. The pathway was incorporated into the expression system model to observe the expression of butyrate under the control of the developed system. The model generated helped us to understand how the system is dealing with pathways that consist of several enzymes at an intestinal level. </p> |
| − | <p class="space20">The system consists of two quorum sensing (QS) systems | + | <p class="space20">The system consists of two quorum sensing (QS) systems <i>Esa</i>R/I and <i>Cep</i>R/I. The <i>Esa</i>R/I system belongs to the plant pathogen <i> Pantoea stewartii </i>. The second QS-System, CepR/I, belongs to the opportunistic pathogen <i> Burkholderia cenocepacia </i>. For details about the system and the model please look into <a href="https://2015.igem.org/Team:Manchester-Graz/Modeling" style = "color: #002bb8;">the Manchester-Graz modelling page</a>.</p> |
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<img src="https://static.igem.org/mediawiki/2015/e/e2/NRP-UEA-Norwich-grazmodel1.png" href="https://static.igem.org/mediawiki/2015/e/e2/NRP-UEA-Norwich-grazmodel1.png" alt="..." class="img-responsive mautomargin fancybox" style="cursor: pointer;"> | <img src="https://static.igem.org/mediawiki/2015/e/e2/NRP-UEA-Norwich-grazmodel1.png" href="https://static.igem.org/mediawiki/2015/e/e2/NRP-UEA-Norwich-grazmodel1.png" alt="..." class="img-responsive mautomargin fancybox" style="cursor: pointer;"> | ||
| − | <p><b>Figure 1:</b> Overview of the reduced pathway. Coenzyme A ( | + | <p><b>Figure 1:</b> Overview of the reduced pathway. Coenzyme A (CoA) is recycled in the pathway by the butyryl CoA-acetyl CoA-tranferase. |
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| − | + | <p class="space10">Butyrate is converted starting from two acetyl-CoAs over several steps to butyryl-CoA. In the last step, the coenzyme A is transferred to acetate, producing acetyl-CoA and butyrate<sub><a data-id="ref" class="scroll-link" style = "color: #002bb8;">1</a></sub>. | |
| − | < | + | For simplicity, the pathway was reduced to some essential parts and steps in the pathway. Acetate is converted to acetyl-CoA. The steps to butyryl-CoA are reduced to one step. Coenzyme A is recycled in the last step to butyrate and can be reused to produce acetyl-CoA (Figure 1). </p> |
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| − | <p class="space20"> | + | <p class="space20">The pathway is controlled by three enzymes whose expression is controlled by the two quorum sensing systems. |
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| + | <p class ="space20">If we simulate the model, in the first two minutes the acetate gets first converted into butyryl-CoA and then the butyrate production starts (see Figure 2). The following time is butyrate being produced constantly by the cells. The butyrate is transported out of the cells through diffusion by a rate of 207.6 µmol/h/L or 18 mg/h/L.</p> | ||
| − | + | <img src="https://static.igem.org/mediawiki/2015/8/83/NRP-UEA-Norwich-manchester3.png" href="https://static.igem.org/mediawiki/2015/8/83/NRP-UEA-Norwich-manchester3.png" alt="..." class="img-responsive mautomargin fancybox space10" style="cursor: pointer;"> | |
| − | + | <p><b>Figure 2:</b> Butyrate production in the first two minutes.</p> | |
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| + | <img src="https://static.igem.org/mediawiki/2015/2/29/NRP-UEA-Norwich-pathwaything.png" href="https://static.igem.org/mediawiki/2015/2/29/NRP-UEA-Norwich-pathwaything.png" alt="..." class="img-responsive mautomargin fancybox" style="cursor: pointer;"> | ||
| + | <p><b>Figure 3:</b> Overview of the Simbiology model. For simplification the model was reduced to essential components.</p> | ||
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| − | <img src="https://static.igem.org/mediawiki/2015/ | + | <img src="https://static.igem.org/mediawiki/2015/2/29/NRP-UEA-Norwich-pathwaything.png"> |
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| + | <h2 class="title1" id="ref">References</h2> | ||
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| + | <p >1. Susan E et al (2002) The microbiology of butyrate formation in the human colon.</p> | ||
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<li><img src="https://static.igem.org/mediawiki/2015/9/9c/NRP-UEA-Norwich-Ibcarb_logo.png" width="200" height="100" class="img-grey mautomargin"></a></li> | <li><img src="https://static.igem.org/mediawiki/2015/9/9c/NRP-UEA-Norwich-Ibcarb_logo.png" width="200" height="100" class="img-grey mautomargin"></a></li> | ||
<li><img src="https://static.igem.org/mediawiki/2015/8/8b/NRP-UEA-Norwich-TSL-logo.png" width="200" height="100" class="img-grey mautomargin"></a></li> | <li><img src="https://static.igem.org/mediawiki/2015/8/8b/NRP-UEA-Norwich-TSL-logo.png" width="200" height="100" class="img-grey mautomargin"></a></li> | ||
| − | <li><img src="https://static.igem.org/mediawiki/2015/ | + | <li><img src="https://static.igem.org/mediawiki/2015/7/7d/NRP-UEA-Norwich-SEB-Logo.png" width="225" height="100" class="img-grey mautomargin"></a></li> |
<li><img src="https://static.igem.org/mediawiki/2015/d/d3/NRP-UEA-Norwich-JIC.png" width="200" height="100" class="img-grey mautomargin" width="200" height="100"></a></li> | <li><img src="https://static.igem.org/mediawiki/2015/d/d3/NRP-UEA-Norwich-JIC.png" width="200" height="100" class="img-grey mautomargin" width="200" height="100"></a></li> | ||
<li><img src="https://static.igem.org/mediawiki/2015/c/c5/NRP-UEA-Norwich-Bbsrc.png" width="200" height="100" class="img-grey mautomargin"></a></li> | <li><img src="https://static.igem.org/mediawiki/2015/c/c5/NRP-UEA-Norwich-Bbsrc.png" width="200" height="100" class="img-grey mautomargin"></a></li> | ||
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<li><img src="https://static.igem.org/mediawiki/2015/e/e3/NRP-UEA-Norwich-Wellcome_Trust_logo.png" width="250" height="100" class="img-grey mautomargin"></a></li> | <li><img src="https://static.igem.org/mediawiki/2015/e/e3/NRP-UEA-Norwich-Wellcome_Trust_logo.png" width="250" height="100" class="img-grey mautomargin"></a></li> | ||
<li><img src="https://static.igem.org/mediawiki/2015/7/74/NRP-UEA-Norwich-IBBA_logo.png" width="125" height="125" class="img-grey mautomargin"></a></li> | <li><img src="https://static.igem.org/mediawiki/2015/7/74/NRP-UEA-Norwich-IBBA_logo.png" width="125" height="125" class="img-grey mautomargin"></a></li> | ||
| + | <li><img src="https://static.igem.org/mediawiki/2015/d/d0/NRP-UEA-Norwich-SfAM-Logo.png" width="220" height="100" class="img-grey mautomargin" width="200" height="100"></a></li> | ||
Latest revision as of 10:42, 21 October 2015
Manchester-Graz Collaboration
The Manchester-Graz team have developed an expression system designed to regulate single and multi-gene pathways for an intestine expression. For controlling a wide range of pathways it is designed in a flexible and modular manner. They tested the production of butyrate in the gut. The pathway was incorporated into the expression system model to observe the expression of butyrate under the control of the developed system. The model generated helped us to understand how the system is dealing with pathways that consist of several enzymes at an intestinal level.
The system consists of two quorum sensing (QS) systems EsaR/I and CepR/I. The EsaR/I system belongs to the plant pathogen Pantoea stewartii . The second QS-System, CepR/I, belongs to the opportunistic pathogen Burkholderia cenocepacia . For details about the system and the model please look into the Manchester-Graz modelling page.
Figure 1: Overview of the reduced pathway. Coenzyme A (CoA) is recycled in the pathway by the butyryl CoA-acetyl CoA-tranferase.
Butyrate is converted starting from two acetyl-CoAs over several steps to butyryl-CoA. In the last step, the coenzyme A is transferred to acetate, producing acetyl-CoA and butyrate1. For simplicity, the pathway was reduced to some essential parts and steps in the pathway. Acetate is converted to acetyl-CoA. The steps to butyryl-CoA are reduced to one step. Coenzyme A is recycled in the last step to butyrate and can be reused to produce acetyl-CoA (Figure 1).
The pathway is controlled by three enzymes whose expression is controlled by the two quorum sensing systems.
If we simulate the model, in the first two minutes the acetate gets first converted into butyryl-CoA and then the butyrate production starts (see Figure 2). The following time is butyrate being produced constantly by the cells. The butyrate is transported out of the cells through diffusion by a rate of 207.6 µmol/h/L or 18 mg/h/L.
Figure 2: Butyrate production in the first two minutes.
Figure 3: Overview of the Simbiology model. For simplification the model was reduced to essential components.
References
1. Susan E et al (2002) The microbiology of butyrate formation in the human colon.
