Team:Groningen/Project

From 2012.igem.org

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{{HeaderGroningen2012}}
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<br><br>
 
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<z1 >Abstract</z1><br>
 
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</div>
 
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<GerminationP ><A HREF="https://2012.igem.org/Team:Groningen/Germination" TARGET="_blank"><FONT COLOR=#ffffff>germination</FONT></A></GerminationP>
 
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<br>
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<div class="cte">
 +
<div class="ctd">
 +
<z1>Abstract</z1>
 +
</div>
 +
</div>
 +
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<tr>
 +
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<td colspan="4">
 +
<p class="nomargin">
 +
Every year, one third of global food production -1.3 billion tons of food- is thrown away, partially due to the “best before” dating system.
 +
<z7>iGEM Groningen 2012</z7> seeks to provide an alternative method of assessing edibility: the <z7>Food Warden</z7>. It uses an <z7>engineered strain</z7>
 +
of <i>Bacillus subtilis</i> to detect and report volatiles in spoiling meat. The introduced <z7>genetic construct</z7> uses a promoter to trigger
 +
a pigment coding gene. This promoter, <z7>identified by microarray analysis</z7>, is significantly upregulated in the presence of
 +
<z7>volatiles from spoiling meat</z7>. The activity of the <z7>promoter</z7> regulates the expression of the <z7>pigment reporter</z7> and will
 +
be visible to the naked eye. For safe usage of the system, spores of our engineered strain are placed into one half of a semi-permeable
 +
<z7>capsule</z7>, the second containing a calibrated amount of nutrients. Breaking the barrier between the two compartments allows
 +
<z7>germination and growth</z7>, thereby activating the <z7>spoiling-meat sensor</z7>.
-
                }
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<PBADmeat1P ><A HREF="https://2012.igem.org/Team:Groningen/identifyingbadvolatiles" TARGET="_blank"><FONT COLOR=#ffffff>volatiles</FONT></A></PBADmeat1>
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 +
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 +
<div class="cte2">
 +
<div class="ctd2">
 +
<a name="MainAcc"></a><z2 >Our main accomplishments</z2><br><br>
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-
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 +
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 +
<a href="#"><img src="https://static.igem.org/mediawiki/2012/c/c2/Groningen2012_RR_20120909_rotting.png" width=150 /><img src="https://static.igem.org/mediawiki/2012/c/c2/Groningen2012_RR_20120909_rotting.png" class="preview" width=400 /></a>
 +
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 +
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 +
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 +
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-
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<tr>
-
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-
<identificationP ><A HREF="https://2012.igem.org/Team:Groningen/identifyingPBADmeat" TARGET="_blank"><FONT COLOR=#ffffff>identification</FONT></A></identificationP>
+
<p class="small"><font color=#FF6700><br><b>1.</b></font>We designed and tested the "Sticker": a capsule in which bacteria are kept inside and volatiles can go through. We used a model to get insight on how to tweak the growth of <i>Bacillus subtilis</i>.</p>
-
</div>
+
</td>
-
</div>
+
-
</body>
+
-
</head>
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-
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-
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-
<head>
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+
-
body {
+
<td class="accCap">
-
font-family: Helvetica, Arial, sans-serif;
+
<p class="small"><font color=#FF6700><b>2.</b></font>We explored the definition of spoiled meat and ways to check meat spoilage. We identified various compounds present in spoiled meat.<br></p>
 +
</td>
 +
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-
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-
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 +
<li>
 +
<a href="#"><img src="https://static.igem.org/mediawiki/2012/2/24/Groningen2012_RRADPsac_transp.png" width=150 /><img src="https://static.igem.org/mediawiki/2012/2/24/Groningen2012_RRADPsac_transp.png" class="preview" width=400 /></a>
 +
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 +
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 +
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 +
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<div class="Pigments2">
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<tr>
-
<div class="Pigments1">
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-
<PigmentsP ><A HREF="https://2012.igem.org/Team:Groningen/Pigments" TARGET="_blank"><FONT COLOR=#ffffff>pigment</FONT></A></Pigments>
+
<p class="small"><font color=#FF6700>3.</b></font> We identified spoiled meat sensors by transcriptome analysis.<br><br><br></p>
-
</div>
+
</td>
-
</div>
+
-
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-
</head>
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-
body {
+
<td class="accCap">
-
font-family: Helvetica, Arial, sans-serif;
+
<p class="small"><font color=#FF6700><b>4.</b></font> Backbone Psac-cm: easy cloning in <i>B. subtilis</i>, the BioBrick way, for the first time! It's easy to check, biobrick compatible, <i>E. coli</i> compatible, stabily inserted into the <i>B. subtilis</i> chromosome</p>
 +
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 +
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 +
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-
<ConstructP ><A HREF="https://2012.igem.org/Team:Groningen/Construct" TARGET="_blank"><FONT COLOR=#ffffff>construct</FONT></A></ConstructP>
+
<p class="small"><font color=#FF6700><br><br><b>5.</b></font> We made AmilCP and AmilGFP be expressed in <i>Bacillus subtilis</i>.<br> These chromoproteins can be of significant value to the other <i>Bacillus subtilis</i> users in the BioBrick community.<br><br><br></p>
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+
<p class="small"><font color=#FF6700><b>6.</b></font> Most importantly: we developed a construct which makes <i>Bacillus subtilis</i> sense spoiled meat and produce an output in the form of a yellow or purple pigment visible by naked eye.<br><br><br></p>
 +
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<DeathP ><A HREF="https://2012.igem.org/Team:Groningen/Death" TARGET="_blank"><FONT COLOR=#ffffff>kill switch</FONT></A></DeathP>
 
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-
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</div>
 
-
 
-
<div style="position:absolute; left: 100px; top: 510px;">
 
-
<img src="https://static.igem.org/mediawiki/2012/c/c2/Groningen2012_RR_20120909_rotting.png" width="100" height="100">
 
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</div>
 
-
 
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<div style="position:absolute; right: 80px; top: 500px;opacity:0.4; filter:alpha(opacity=40); z-index:-1;">
 
-
<img src="https://static.igem.org/mediawiki/2012/b/b6/Groningen2012_AD_20120802_BigCog.png" width="150" height="150">
 
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</div>
 
-
 
-
<div style="position:absolute; right: 110px; top: 525px;">
 
-
<img src="https://static.igem.org/mediawiki/2012/e/e7/Groningen2012_RR20120909_capsule.png" width="100" height="100">
 
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</div>
 
-
 
-
<div style="position:absolute; left: 0px; top: 300px;opacity:0.4; filter:alpha(opacity=40); z-index:-1;">
 
-
<img src="https://static.igem.org/mediawiki/2012/b/b6/Groningen2012_AD_20120802_BigCog.png" width="150" height="150">
 
-
</div>
 
-
 
-
<div style="position:absolute; right: 20px; top: 320px;">
 
-
<img src="https://static.igem.org/mediawiki/2012/2/29/Groningen2012_RR20120909_badmeat.png" width="100" height="100">
 
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</div>
 
-
 
-
<div style="position:absolute; right: 0px; top: 300px;opacity:0.4; filter:alpha(opacity=40); z-index:-1;">
 
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<img src="https://static.igem.org/mediawiki/2012/b/b6/Groningen2012_AD_20120802_BigCog.png" width="150" height="150">
 
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</div>
 
-
 
-
<div style="position:absolute; left: 20px; top: 330px;">
 
-
<img src="https://static.igem.org/mediawiki/2012/1/15/Groningen2012_RR20120909_construct.png" width="100" height="100">
 
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<br><br><br>
<br><br><br>
-
Every year, one third of global food production -1.3 billion tons of food- is thrown away, partially due to the “best before” dating system. <font color=#FF6700><b>iGEM Groningen 2012</b></font> seeks to provide an alternative method of assessing edibility: the <font color=#FF6700><b>Food Warden</b></font>. It uses an <font color=#FF6700><b>engineered strain </b></font> of <i>Bacillus subtilis</i> to detect and report volatiles in spoiling meat. The introduced <font color=#FF6700><b>genetic construct</b></font> uses a promoter to trigger a pigment coding gene. This promoter, <font color=#FF6700><b>identified by microarray analysis</b></font>, is significantly up-regulated in the presence of <font color=#FF6700><b>volatiles from spoiling meat</b></font>. The activity of the <font color=#FF6700><b>promoter</b></font> regulates the expression of the <font color=#FF6700><b>pigment reporter</b></font> and will be visible to the naked eye. For safe usage of the system, spores of our engineered strain are placed into one half of a semi-permeable <font color=#FF6700><b>capsule</b></font>, the second containing a calibrated amount of nutrients. Breaking the barrier between the two compartments allows <font color=#FF6700><b>germination and growth</b></font>, thereby activating the <font color=#FF6700><b>spoiling meat sensor</b></font>.<br><br>
 
-
 
-
</p>
 
-
<br><br><br><br><br><br><br><br><br><br><br>
 
-
<div class="cte2">
 
-
<div class="ctd2">
 
-
<a name="MainAcc"></a><z2 >Our main accomplishments</z2><br>
 
-
</div>
 
-
</div>
 
-
<br><br>
 
-
<p class=orange>In the lab</p>
 
-
<p class="marginleft">
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> Most importantly: we developed a construct which makes <i>Bacillus subtilis</i> sense spoiled meat and produce an output in the form of a yellow pigment visible by naked eye.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> Design of the “<a href="https://2012.igem.org/Team:Groningen/Sticker">Sticker</a>”: semi-permeable capsule: bacteria are kept inside, volatiles can go through. Proof that <i>Bacillus subtilis</i> grows inside the sticker.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> Development of BioBrick psac-cm for <i>Bacillus subtilis</i>. <br><a href="http://partsregistry.org/Part:BBa_K818000" target=_blank><font size=4 color=#FF6700><b>Easy cloning in <i>Bacillus subtilis</i> in Biobrick fashion for the first time!</b></font></a> Advantages: easy to check, BioBrick compatible, <i>E. coli</i> compatible, stable insertion into <i>Bacillus subtilis</i> chromosome.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> Identification of spoiled meat sensors by transcriptome analysis. Usage of an innovative experimental setup which can be used to test more sensors in the future.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> We made AmilCP and AmilGFP be expressed in <i>Bacillus subtilis</i>. These chromoproteins can be of significant value to the other <i>Bacillus subtilis</i> users in the BioBrick community.<br><br><br></p>
 
-
<p class=orange>Other</p>
 
-
<p class="marginleft">
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> Smart spores activation system: inspired by "glow in the dark stick", we designed a sticker with two compartments. One compartment holds the spores, the other the nutrients; when the nutrients compartment is braked, the spores start to germinate, activating the sticker.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> We explored the definition of spoiled meat and different ways to test this.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> We identified various compounds present in spoiled meat by Gas Chromatography - Mass Spectrometry.<br><br>
 
-
<img src="https://static.igem.org/mediawiki/2012/d/df/IGEMGroningen2012_AD20120915_Tick.png" width=20> We made a model which gives insight on how to tweak the growth of <i>Bacillus subtilis</i> based upon literature, experimental data and flux balance analysis.<br></p>
 
</body>
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Revision as of 02:10, 27 September 2012





Abstract

Every year, one third of global food production -1.3 billion tons of food- is thrown away, partially due to the “best before” dating system. iGEM Groningen 2012 seeks to provide an alternative method of assessing edibility: the Food Warden. It uses an engineered strain of Bacillus subtilis to detect and report volatiles in spoiling meat. The introduced genetic construct uses a promoter to trigger a pigment coding gene. This promoter, identified by microarray analysis, is significantly upregulated in the presence of volatiles from spoiling meat. The activity of the promoter regulates the expression of the pigment reporter and will be visible to the naked eye. For safe usage of the system, spores of our engineered strain are placed into one half of a semi-permeable capsule, the second containing a calibrated amount of nutrients. Breaking the barrier between the two compartments allows germination and growth, thereby activating the spoiling-meat sensor.

Our main accomplishments


1.
We designed and tested the "Sticker": a capsule in which bacteria are kept inside and volatiles can go through. We used a model to get insight on how to tweak the growth of Bacillus subtilis.

2.We explored the definition of spoiled meat and ways to check meat spoilage. We identified various compounds present in spoiled meat.

3. We identified spoiled meat sensors by transcriptome analysis.


4. Backbone Psac-cm: easy cloning in B. subtilis, the BioBrick way, for the first time! It's easy to check, biobrick compatible, E. coli compatible, stabily inserted into the B. subtilis chromosome



5.
We made AmilCP and AmilGFP be expressed in Bacillus subtilis.
These chromoproteins can be of significant value to the other Bacillus subtilis users in the BioBrick community.


6. Most importantly: we developed a construct which makes Bacillus subtilis sense spoiled meat and produce an output in the form of a yellow or purple pigment visible by naked eye.





Our sponsors: