Difference between revisions of "Team:NRP-UEA-Norwich/Results"

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     <h1 class="title1">Modelling and Software</h2>
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     <h1 class="title1">Our Results</h2>
 
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     <p class="space20">While we were bringing all the parts together in the lab, a lot of unanswered questions started to raised: How does glycogen and starch look like in real life? How will GlgX and GlgB expression affect the glycogen global structure? How this branching and debranching process take place? And,
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     <p class="space20">Brief introduction.</p>
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how will the acyltransferases add the acyl group into the glycogen/starch molecule and in which position? Will this addition affect the functionality of the molecule? </p>
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<p>Thanks to computers, software and maths, we were able to predict the outcome of all this processes to help us understanding what was going to happen in the lab. </p>
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     <h3 class="title">Software: Glyco2D</h2>
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     <h3 class="title">Results - A Probiotic</h2>
 
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     <p class="space20">Again - brief introduction</p>
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We used glycogen as a model system to gain a better understanding of the parameters involved in carbohydrate structure, branching and modification. </p>
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<p>We built Glyco2D based on the mathematical model that described the structural properties of glycogen based on different parameters such as chain length, branching degree and the number of tiers<sub><a data-id="ref" class="scroll-link" style = "color: #002bb8;">1</a></sub>. </p>
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        <p class="space20">Then we used the software to model the putative changes in glycogen structure depending on the location of the modification.  Our aim was to produce carbohydrate molecules with 5-10% of the residues modified since this level of butrylation (achieved by chemical modification) has positive benefits to the colons of rats <sub><a data-id="ref" class="scroll-link" style = "color: #002bb8;">2</a></sub>.</p>
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<p class="space20">You can learn more by clicking on the image to the right.</p>
 
<p class="space20">You can learn more by clicking on the image to the right.</p>
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     <p class="space20">We build 3D models of carbohydrates (glycogen and the 2 components of starch -amylopectine and amylose-) to get a better understanding of the effect of branching degree and chain length on the real structure. We used the <href="http://www.glycosciences.de/modeling/sweet2/doc/index.php">SWEET </a> software to build them. </p>
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     <p class="space20">Again... Short introduction </p>
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        <p class="space20">We developed a pipeline to 3D print these molecules. After several attempts, we managed to have our own 3D printed glycogen! </p>
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<p class="space20">You can learn more by clicking on the image on the right.</p>
 
<p class="space20">You can learn more by clicking on the image on the right.</p>
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    <h3 class="title">Kinetic modelling</h2>
 
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    <p class="space20">To analyse the efficiency of the branching (GlgB) and debranching (GlgX) enzymes in glycogen production, we generated a set of differential equations to explain glycogen biosynthesis. We also incorporated all the enzymes involved in the pathway starting from taking the glucose from the medium <sub><a data-id="ref" class="scroll-link" style = "color: #002bb8;">3</a></sub>.</p>
 
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        <p class="space20">This model helped us understanding the outcome of overexpressing GlgB and GlgX in the lab in an <i>E. coli</i> cell. </p>
 
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                        <img src="https://static.igem.org/mediawiki/2015/e/e1/NRP-UEA-Norwich-kinetic-pathway-copy.png" class="img-responsive ">
 
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                          <a title="Kinetic model"  href="https://2015.igem.org/Team:NRP-UEA-Norwich/Modeling" class="btn outlinebtn  space50">
 
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                            Read More
 
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Revision as of 10:59, 16 September 2015

House of Carbs

Our Results

Brief introduction.

Results - A Probiotic

Again - brief introduction

You can learn more by clicking on the image to the right.

Read More

Results - A Prebiotic

Again... Short introduction

You can learn more by clicking on the image on the right.

Read More

References

1. Meléndez-Hevia E., Waddell T.G., and Shelton E.D., 1993, Optimization of molecular design in the evolution of metabolism: The glycogen molecule , Biochem Journal, 295, p. 477–83

2. Bajka B.H., Clarke J.M., Topping D.L., Cobiac L., Abeywardena M.Y., and Patten G., 2010, Butyrylated starch increases large bowel butyrate levels and lowers colonic smooth muscle contractility in rats , Nutrition Research, 30, p. 427–34

3. Wilson WA, Roach PJ, Montero M, Baroja-Fernández E, Muñoz FJ, Eydallin G, Viale AM, Pozueta-Romero J (2010) Regulation of glycogen metabolism in yeast and bacteria. FEMS Microbiology Reviews 34:952–85