Team:SJTU-BioX-Shanghai

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<p>This year, SJTU-BioX-Shanghai iGEM team is trying to build a “factory” on E.coli’s membrane, where enzyme assemblies can be manipulated so that biochemical reactions can be accelerated and further controlled. </p>
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<p>We aimed at constructing a set of protein assemblies on E.coli cell membrane as carriers of various enzymes. Distinct from previous synthetic scaffold system, our device limits the reaction space to a two-dimensional surface. In such system, the membrane functions as an extensive scaffold for proteins to anchor without limitation of scaffold amount. More strikingly, we can switch direction of enzymatic reactions through external or internal signals with our device. </p>
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<p>By gathering downstream enzymes through interacting protein domains, the reaction can be accelerated sharply. Production of fatty acid was enhanced by more than 24 fold through recruiting our membrane accelerator system, which has a promising application prospect in biofuel production.</p>
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<p>In ''Membrane Rudder'' device, we successfully changed the direction of Violacein synthetic pathway through light signal. </p>
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<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> The honors we won:</font></strong> Gold Medal, Best New BioBrick Part or Device Engineered (BBa_K771001) and Regional Winner at Asia Jamboree; Advanced to World Championship.</p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> The breakthrough we made:</font></strong> Redefinition of scaffold in Synthetic Biology by recruiting <i>E.coli’</i>s inner membrane as a natural two-dimensional scaffold. </p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> The system we built:</font></strong> 6 membrane proteins orderly organized on the inner membrane of <i>E.coli</i>, the efficiency of which has been proved by fluorescence complementation assay and biosynthesis experiment.</p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> The device we created – Membrane Accelerator:</font></strong> A universal tool that serves to accelerate biochemical reactions in <i>E.coli</i>; Rate of fatty acids synthesis was increased by 24 fold compared to wild-type <i>E.coli </i>and 9 fold compared to that with overexpressed cytoplasmic enzymes.</p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> device we created – Membrane Rudder:</font></strong> A universal tool used to dynamically and artificially control biochemical reactions in <i>E.coli</i>; the direction of Violacein and Deoxyviolacein synthetic pathway was successfully switched. </p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> New direction we proposed:</font></strong> The application of scaffold system in accelerating biodegradation pathway using our Membrane Accelerator.</p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> Parts we submitted:</font></strong> 42 well-characterized parts that could either be used directly or serve as a universal tool readily for potential scientific or engineering use.</p>
 +
<p><strong><font face="Wingdings " size="4">ü</font><font face="Cambria, serif " size="4"> A club we established – BioCraft:</font></strong> The headquarter of our human practice programs, having come a long way in propagandizing Synthetic Biology and iGEM. Warmly-received activities have been held in and outside the campus. Several celebrities in different fields have shown support for us, laying a cornerstone for our future development.</p>
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<p><strong>Abstract:</strong></p>
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<p>This year, SJTU-BioX-Shanghai iGEM team is trying to build a “factory” on E.coli’s membrane, where enzyme assemblies can be manipulated so that biochemical reactions can be accelerated and further controlled. </p>
+
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<p>We aimed at constructing a set of protein assemblies on E.coli cell membrane as carriers of various enzymes. Distinct from previous synthetic scaffold system, our device limits the reaction space to a two-dimensional surface. In such system, the membrane functions as an extensive scaffold for proteins to anchor without limitation of scaffold amount. More strikingly, we can switch direction of enzymatic reactions through external or internal signals with our device. </p>
+
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<p>By gathering downstream enzymes through interacting protein domains, the reaction can be accelerated sharply. Production of fatty acid was enhanced by more than 24 fold through recruiting our membrane accelerator system, which has a promising application prospect in biofuel production.</p>
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<div align="center" id="footer"> (c)  <a href="" target="_self">SJTU_BioX_iGEM2012</a> Powered by huanan1991</div>
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<p>In ''Membrane Rudder'' device, we successfully changed the direction of Violacein synthetic pathway through light signal. </p>
 
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Revision as of 16:56, 25 October 2012

This year, SJTU-BioX-Shanghai iGEM team is trying to build a “factory” on E.coli’s membrane, where enzyme assemblies can be manipulated so that biochemical reactions can be accelerated and further controlled.

We aimed at constructing a set of protein assemblies on E.coli cell membrane as carriers of various enzymes. Distinct from previous synthetic scaffold system, our device limits the reaction space to a two-dimensional surface. In such system, the membrane functions as an extensive scaffold for proteins to anchor without limitation of scaffold amount. More strikingly, we can switch direction of enzymatic reactions through external or internal signals with our device.

By gathering downstream enzymes through interacting protein domains, the reaction can be accelerated sharply. Production of fatty acid was enhanced by more than 24 fold through recruiting our membrane accelerator system, which has a promising application prospect in biofuel production.

In ''Membrane Rudder'' device, we successfully changed the direction of Violacein synthetic pathway through light signal.

ü The honors we won: Gold Medal, Best New BioBrick Part or Device Engineered (BBa_K771001) and Regional Winner at Asia Jamboree; Advanced to World Championship.

ü The breakthrough we made: Redefinition of scaffold in Synthetic Biology by recruiting E.coli’s inner membrane as a natural two-dimensional scaffold.

ü The system we built: 6 membrane proteins orderly organized on the inner membrane of E.coli, the efficiency of which has been proved by fluorescence complementation assay and biosynthesis experiment.

ü The device we created – Membrane Accelerator: A universal tool that serves to accelerate biochemical reactions in E.coli; Rate of fatty acids synthesis was increased by 24 fold compared to wild-type E.coli and 9 fold compared to that with overexpressed cytoplasmic enzymes.

ü device we created – Membrane Rudder: A universal tool used to dynamically and artificially control biochemical reactions in E.coli; the direction of Violacein and Deoxyviolacein synthetic pathway was successfully switched.

ü New direction we proposed: The application of scaffold system in accelerating biodegradation pathway using our Membrane Accelerator.

ü Parts we submitted: 42 well-characterized parts that could either be used directly or serve as a universal tool readily for potential scientific or engineering use.

ü A club we established – BioCraft: The headquarter of our human practice programs, having come a long way in propagandizing Synthetic Biology and iGEM. Warmly-received activities have been held in and outside the campus. Several celebrities in different fields have shown support for us, laying a cornerstone for our future development.