Team:DTU-Denmark

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                 <h2>Problem</h2>How can we quantify promoter activity?</br>
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                 <h2><b>Problem</b></h2>How can we quantify promoter activity?</br>
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                 <p>When characterising promoters today it is done by proxy of protein. This can result in unwanted variations caused by translation and folding efficiency or excess cellular stress. Another important issue is the lack of a standard for measurements of fluorescence as most characterisations are done using fluorescent proteins such as GFP. As a result, most characterisations are done in relative units making it complicated or impossible to compare measurements between labs, strains and growth conditions. <a href="/Team:DTU-Denmark/Overview/Background"> READ MORE </a> </p>
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                 <p>When characterising promoters today it is done by proxy of protein. This can result in unwanted variations caused by translation and folding efficiency or excess cellular stress. Another important issue is the lack of a standard for measurements of fluorescence as most characterisations are done using fluorescent proteins such as GFP. As a result, most characterisations are done in relative units making it complicated or impossible to compare measurements between labs, strains and growth conditions. <a href="/Team:DTU-Denmark/Overview/Background"> <b>READ MORE</b> </a> </p>
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                 <h2>Solution</h2>Spinach RNA allows us to measure RNA concentration using fluorometry</br>
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                 <h2><b>Solution</b></h2>Spinach RNA allows us to measure RNA concentration using fluorometry</br>
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                 <p>The Spinach RNA is an aptamer, which can bind to DFHBI to create a fluorophore that resembles GFP in spectral properties. This provides a way to easily quantify RNA concentration and allows promoter activities to be <a href="/Team:DTU-Denmark/Achievements/Modelling">calculated</a> in units Polymerases Per Second. The possibility of measuring promoter activity in absolute terms will enable researchers to share and compare results obtained in different labs, and better characterise the function of promoters. <a href="/Team:DTU-Denmark/Overview/Strategy"> READ MORE </a></p>
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                 <p>The Spinach RNA is an aptamer, which can bind to DFHBI to create a fluorophore that resembles GFP in spectral properties. This provides a way to easily quantify RNA concentration and allows promoter activities to be <b><a href="/Team:DTU-Denmark/Achievements/Calculator">calculated</a></b> in units Polymerases Per Second. The possibility of measuring promoter activity in absolute terms will enable researchers to share and compare results obtained in different labs, and better characterise the function of promoters. <a href="/Team:DTU-Denmark/Overview/Strategy"> <b>READ MORE</b> </a></p>
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                 <h2>Results</h2>We have developed a method that can be used to measure absolute promoter activity</br>
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                 <h2><b>Results</b></h2>We have developed a method that can be used to measure absolute promoter activity</br>
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                 <p>Using RNA transcribed <i>in vitro</i> we created a standard series which can be used to determine the concentration of Spinach given a fluorescence intensity. We also designed an experiment to determine the degradation rate of the Spinach RNA <i>in vivo</i>. Combining these two experiments with the growth rate and fluorescence of a Spinach-expressing culture it is possible to determine the promoter activity using. <a href="/Team:DTU-Denmark/Achievements/Experimental_Results"> READ MORE </a></p>
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                 <p>Using RNA transcribed <i>in vitro</i> we created a standard series which can be used to determine the concentration of Spinach given a fluorescence intensity. We also designed an experiment to determine the degradation rate of the Spinach RNA <i>in vivo</i>. Combining these two experiments with the growth rate and fluorescence of a Spinach-expressing culture it is possible to determine the promoter activity using our derived formulas or our online calculator. <a href="/Team:DTU-Denmark/Achievements/Experimental_Results"> <b>READ MORE</b> </a></p>
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<h1 style="text-align: center;">Thank You to Our Sponsors</h2>
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<h3>Try Our PoPS Calculator!</h3>
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<p>Have you measured promoter activity but is data analysis a drag? Use our PoPS calculator to calculate promoter activity based on Spinach measurements!</p>
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Latest revision as of 08:32, 7 February 2015

Problem

How can we quantify promoter activity?

When characterising promoters today it is done by proxy of protein. This can result in unwanted variations caused by translation and folding efficiency or excess cellular stress. Another important issue is the lack of a standard for measurements of fluorescence as most characterisations are done using fluorescent proteins such as GFP. As a result, most characterisations are done in relative units making it complicated or impossible to compare measurements between labs, strains and growth conditions. READ MORE

Solution

Spinach RNA allows us to measure RNA concentration using fluorometry

The Spinach RNA is an aptamer, which can bind to DFHBI to create a fluorophore that resembles GFP in spectral properties. This provides a way to easily quantify RNA concentration and allows promoter activities to be calculated in units Polymerases Per Second. The possibility of measuring promoter activity in absolute terms will enable researchers to share and compare results obtained in different labs, and better characterise the function of promoters. READ MORE

Results

We have developed a method that can be used to measure absolute promoter activity

Using RNA transcribed in vitro we created a standard series which can be used to determine the concentration of Spinach given a fluorescence intensity. We also designed an experiment to determine the degradation rate of the Spinach RNA in vivo. Combining these two experiments with the growth rate and fluorescence of a Spinach-expressing culture it is possible to determine the promoter activity using our derived formulas or our online calculator. READ MORE



Try Our PoPS Calculator!

Have you measured promoter activity but is data analysis a drag? Use our PoPS calculator to calculate promoter activity based on Spinach measurements!