Team:Uppsala/miraculin

From 2013.igem.org

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<h1 class="main-title">Miraculin</h1>
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<h1>Sweet polypeptide goodness</h1>
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Synsepalum Dulcificum is a plant found along the coast of West Africa. It grows red berries about the size of coffee beans that have a quite peculiar property: they make sour things taste sweet. This effect was first documented in the late 1700's, and has caused the berries to be referred to as "miracle berries". The "miraculous" property is actually caused by a glycoprotein dubbed Miraculin, that binds to the taste receptors on the  tongue and modifies their response. The exact mechanism of the interaction is not entirely understood, but it has been used  as a natural sweetener in different circumstances throughout the centuries.<br><br>  
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<table><tr><td><img class="miraculus_pic" src="https://static.igem.org/mediawiki/2013/1/11/Uppsala_miraculin_pic1.JPG"></td><td>
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Methods
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<img class="miraculus_pic" src="https://static.igem.org/mediawiki/2013/9/95/Uppsala_miraculin_pic2.JPG"></td></tr></table>
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The Miraculin gene has never been used within iGEM, and due to it's unusual and, one might say, sweet properties we decided it would be a good addition as a sweetener option for our probiotic.<br><br>
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<img class="miraculus_pic" src="https://static.igem.org/mediawiki/2013/6/62/Uppsala_miraculin_pic3.JPG"><br><br><br>
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<h1>Methods</h1>
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<div class="head"> <h1> Results </h1> </div>
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We synthesized the miraculin gene along with a B0034 ribosome binding site for expression, the export tag USP45 for exportation of the complete glycopeptide out of the cell, and a 6xhis-tag for characterization purposes. Additionally, the gene was isolated with primers using biobrick overhangs for increased modularity in further use. We verify all our genetic constructs by sequencing<br><br>
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<h1>Results</h1>
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Results
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<h3>Summary</h3>
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We were successful in both subcloning the synthetic construct to a desired plasmid  and isolating the Maraculin gene by itself. The sequencencing was done at GATC biotch and Uppsala Genome center. We were not successful in either assembling or mutagenizing a promoter to the construct, and as such could not characterize it further. <br><br>
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<h3>Biobricks</h3>
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<li>Miraculin with export tag USP45, 6xHis-tag and ribosome binding site B0034</li>
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<li>Miraculin with only biobrick prefix/suffix</li>
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Revision as of 21:43, 28 September 2013

Miraculin

Sweet polypeptide goodness

Synsepalum Dulcificum is a plant found along the coast of West Africa. It grows red berries about the size of coffee beans that have a quite peculiar property: they make sour things taste sweet. This effect was first documented in the late 1700's, and has caused the berries to be referred to as "miracle berries". The "miraculous" property is actually caused by a glycoprotein dubbed Miraculin, that binds to the taste receptors on the tongue and modifies their response. The exact mechanism of the interaction is not entirely understood, but it has been used as a natural sweetener in different circumstances throughout the centuries.

The Miraculin gene has never been used within iGEM, and due to it's unusual and, one might say, sweet properties we decided it would be a good addition as a sweetener option for our probiotic.




Methods

We synthesized the miraculin gene along with a B0034 ribosome binding site for expression, the export tag USP45 for exportation of the complete glycopeptide out of the cell, and a 6xhis-tag for characterization purposes. Additionally, the gene was isolated with primers using biobrick overhangs for increased modularity in further use. We verify all our genetic constructs by sequencing

Results

Summary

We were successful in both subcloning the synthetic construct to a desired plasmid and isolating the Maraculin gene by itself. The sequencencing was done at GATC biotch and Uppsala Genome center. We were not successful in either assembling or mutagenizing a promoter to the construct, and as such could not characterize it further.

Biobricks

  • Miraculin with export tag USP45, 6xHis-tag and ribosome binding site B0034
  • Miraculin with only biobrick prefix/suffix

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