pSoxS is one half of the pSoxR/pSoxS bidirectional promoter. Transcription downstream of pSoxS is activated in response to oxidation of the SoxR transcription factor, either directly by redox-cycling drugs or by oxidative stress. It is therefore inducible by various redox-cycling drugs, toxins, antibiotics, heavy metals, hydrogen peroxide and nitric oxide, providing various applications in the development of environmental and therapeutic devices. By coupling oxidation of redox-cycling species to an electrode, the 2018 Imperial College London iGEM team (PixCell) used pSoxS to build electrogenetic devices in which electrical inputs modulated gene expression.
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<h1>Basic Parts</h1>
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A <b>basic part</b> is a functional unit of DNA that cannot be subdivided into smaller component parts. <a href="http://parts.igem.org/wiki/index.php/Part:BBa_R0051">BBa_R0051</a> is an example of a basic part, a promoter regulated by lambda cl.
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<p>Most genetically-encoded functions have not yet been converted to BioBrick parts. Thus, there are <b>many</b> opportunities to find new, cool, and important genetically encoded functions, and refine and convert the DNA encoding these functions into BioBrick standard biological parts. </p>
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<h3>Note</h3>
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<p>This page should list all the basic parts your team has made during your project. You must add all characterization information for your parts on the Registry. You should not put characterization information on this page. Remember judges will only look at the first part in the list for the Best Basic Part award, so put your best part first!</p>
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<h3>Best Basic Part Special Prize</h3>
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<p> To be eligible for this award, this part must adhere to <a href="http://parts.igem.org/DNA_Submission">Registry sample submission guidelines</a> and have been sent to the Registry of Standard Biological Parts. If you have a part you wish to nominate your team for this <a href="https://2018.igem.org/Judging/Awards">special prize</a>, make sure you add your part number to your <a href="https://2018.igem.org/Judging/Judging_Form">judging form</a> and delete the box at the top of this page.
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<b>Please note:</b> Judges will only look at the first part number you list, so please only enter ONE (1) part number in the judging form for this prize. </p>
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This pSoxS promoter represents an improvement on <a href="http://parts.igem.org/Part:BBa_K387001">Part:BBa_K387001</a>. Our primary contribution is enhanced modularity, allowing its incorporation into a library of promoters and corresponding transcription factors; we also have evidence of new functionality (transcriptional repression) in combination with one of the transcription factors in this library. The promoter was taken from E. coli, with a 2bp deletion introduced between the -35 and -10 site in order to convert the induction of the promoter from transcriptional activation to transcriptional repression. The promoter was also engineered to be unidirectional by knocking out activity of the pSoxR portion. It was designed with an upstream terminator to remove the need for these to be added as parts in large assemblies. It also contains a downstream ribozyme to reduce context-dependency. It forms part of the PixCell library of electrogenetic and redox-sensing parts.
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This part is compatible for BioBrick, BASIC and Golden Gate assembly.
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<a href="http://parts.igem.org/Part:BBa_K2862010">Click here to visit our Basic Parts page in the registry</a></div>
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Latest revision as of 03:38, 18 October 2018
Basic Part
pSoxS Mutant 3
pSoxS is one half of the pSoxR/pSoxS bidirectional promoter. Transcription downstream of pSoxS is activated in response to oxidation of the SoxR transcription factor, either directly by redox-cycling drugs or by oxidative stress. It is therefore inducible by various redox-cycling drugs, toxins, antibiotics, heavy metals, hydrogen peroxide and nitric oxide, providing various applications in the development of environmental and therapeutic devices. By coupling oxidation of redox-cycling species to an electrode, the 2018 Imperial College London iGEM team (PixCell) used pSoxS to build electrogenetic devices in which electrical inputs modulated gene expression.
This pSoxS promoter represents an improvement on Part:BBa_K387001. Our primary contribution is enhanced modularity, allowing its incorporation into a library of promoters and corresponding transcription factors; we also have evidence of new functionality (transcriptional repression) in combination with one of the transcription factors in this library. The promoter was taken from E. coli, with a 2bp deletion introduced between the -35 and -10 site in order to convert the induction of the promoter from transcriptional activation to transcriptional repression. The promoter was also engineered to be unidirectional by knocking out activity of the pSoxR portion. It was designed with an upstream terminator to remove the need for these to be added as parts in large assemblies. It also contains a downstream ribozyme to reduce context-dependency. It forms part of the PixCell library of electrogenetic and redox-sensing parts.
This part is compatible for BioBrick, BASIC and Golden Gate assembly.
Click here to visit our Basic Parts page in the registry