Team:LMU-Munich/Bacillus BioBricks

From 2012.igem.org

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* '''[[Team:LMU-Munich/Bacillus_BioBricks#Bacillus_Promoters|Promoter]]'''
* '''[[Team:LMU-Munich/Bacillus_BioBricks#Bacillus_Promoters|Promoter]]'''
* '''[[Team:LMU-Munich/Bacillus_BioBricks#Bacillus_Reporters|Reporter]]'''
* '''[[Team:LMU-Munich/Bacillus_BioBricks#Bacillus_Reporters|Reporter]]'''
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==Bacillus Vectors==
==Bacillus Vectors==
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Here is a list of all the vectors we cloned and used. Please note that pMAD is not in a BioBrick standard, but it is a useful tool to knock out genes inBacillus subtilis.
 
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For the use of our vectors, please see our [[Team:LMU-Munich/Lab_Notebook/Protocols|Protocols]] page. A general introduction to Bacillus subtilis and its integrative vectors can be found [[Team:LMU-Munich/Bacillus Introduction|here]]. All vectors have ampicillin as <i>E. coli</i> resistance and RFP as selection marker.
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<p align="justify">Here is a list of all the vectors we cloned and used. Please note that pMAD is not in a BioBrick standard, but it is a useful tool to knock out genes inBacillus subtilis.</p>
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<p align="justify">For the use of our vectors, please see our [[Team:LMU-Munich/Lab_Notebook/Protocols|Protocols]] page. A general introduction to Bacillus subtilis and its integrative vectors can be found [[Team:LMU-Munich/Bacillus Introduction|here]]. All vectors have ampicillin as <i>E. coli</i> resistance and RFP as selection marker.</p>
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The number in the vector's name codes for the insertion locus and the following letter for the <i> Bacillus subtilis </i> resistance gene according to the following table:
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<p align="justify">The number in the vector's name codes for the insertion locus and the following letter for the <i> Bacillus subtilis </i> resistance gene according to the following table:</p>
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The concentrations of the antibiotics and the insertion tests can be found in our protocol section.  
The concentrations of the antibiotics and the insertion tests can be found in our protocol section.  
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Pveg, PliaI, PliaG, plepA, Pxyl, Pxyl+XylR
Pveg, PliaI, PliaG, plepA, Pxyl, Pxyl+XylR
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We also tested the Anderson promoter collection in <i> Bacillus subtilis </i> with pSB<sub>Bs</sub>3C-<i>luxABCDE</i>. The data will be online in our data section soon.
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<p align="justify">We also tested the Anderson promoter collection in <i> Bacillus subtilis </i> with pSB<sub>Bs</sub>3C-<i>luxABCDE</i>. The data will be online in our data section soon.</p>
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Furthermore we plan to submit reporter genes optimized for <i> Bacillus subtilis </i>, namely GFP, lacZ, luc and mKate.  
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<p align="justify">Furthermore we plan to submit reporter genes optimized for <i> Bacillus subtilis </i>, namely GFP, lacZ, luc and mKate. </p>
Useful for the registry are also 5 tages in Freiburg Standard (cMyc, 10His, Flag, Strep, HA).
Useful for the registry are also 5 tages in Freiburg Standard (cMyc, 10His, Flag, Strep, HA).
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==Bacillus Promoters==
==Bacillus Promoters==
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Another goal is to produce promoters of ''Bacillus subtilis'' in BioBrick mode and to evaluate them. These well-defined promoters will then be part of the ''Bacillus'' BioBrickBox which we will send to the registry but they can also be useful in our project '''Bead'''zillus to express our fusion crust proteins on the outside of our spores. Therefore we will use different promoters which are the constitutive promoters from the Anderson collection from the partsregistry, the constitutive promoters P<sub>''liaG''</sub>, P<sub>''veg''</sub> and P<sub>''lepA''</sub> from ''B. subtilis'' as well as the inducible promoter P<sub>''liaI''</sub> from ''B. subtilis''. For the characterization of the different promoters we will clone them upstream of reporter genes (lux operon, lacZ) to measure their activity in ''B. subtilis''. Therefore we use e.g. the two reporter vectors from ''B. subtilis'' which are also part of the ''Bacillus'' BioBrickBox. One of the reporter vectors pSB<sub>Bs</sub>3C-<i>luxABCDE</i> contains the ''lux'' operon as a reporter. This is why the activity of the promoter can be measured as luminescence with the plate reader (BioTek) which is a result of the expression of the luciferase. The second reporter vector used for the evaluation of the promoters is pSB<sub>Bs</sub>1C-''lacZ'' which contains the reporter gene ''lacZ''. The promoter activity leads to the production of the enzyme beta-galactosidase which cleaves the substrate ONPG. The product is detectable with the photometer and refers to the promoter activity.
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<p align="justify">Another goal is to produce promoters of ''Bacillus subtilis'' in BioBrick mode and to evaluate them. These well-defined promoters will then be part of the ''Bacillus'' BioBrickBox which we will send to the registry but they can also be useful in our project '''Bead'''zillus to express our fusion crust proteins on the outside of our spores. Therefore we will use different promoters which are the constitutive promoters from the Anderson collection from the partsregistry, the constitutive promoters P<sub>''liaG''</sub>, P<sub>''veg''</sub> and P<sub>''lepA''</sub> from ''B. subtilis'' as well as the inducible promoter P<sub>''liaI''</sub> from ''B. subtilis''. For the characterization of the different promoters we will clone them upstream of reporter genes (lux operon, lacZ) to measure their activity in ''B. subtilis''. Therefore we use e.g. the two reporter vectors from ''B. subtilis'' which are also part of the ''Bacillus'' BioBrickBox. One of the reporter vectors pSB<sub>Bs</sub>3C-<i>luxABCDE</i> contains the ''lux'' operon as a reporter. This is why the activity of the promoter can be measured as luminescence with the plate reader (BioTek) which is a result of the expression of the luciferase. The second reporter vector used for the evaluation of the promoters is pSB<sub>Bs</sub>1C-''lacZ'' which contains the reporter gene ''lacZ''. The promoter activity leads to the production of the enzyme beta-galactosidase which cleaves the substrate ONPG. The product is detectable with the photometer and refers to the promoter activity.</p>
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=== Promoter Evaluation ===
=== Promoter Evaluation ===
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To get a set of promoters with different strength we chose several promoters. They can be divided in three different groups: the constitutive promoters from the [http://partsregistry.org/Part:BBa_J23100 Anderson collection] from the partsregistry, the constitutive promoters P''liaG'', P''veg'' and P''lepA'' from ''B. subtilis'' as well as the inducible promoter P''liaI'' from ''B. subtilis''. For the characterization of the different promoters they were all cloned upstream of reporter genes (lux operon, lacZ) to measure their activity in ''B. subtilis'' by regarding the gene expression of the reporter gene.
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<p align="justify">To get a set of promoters with different strength we chose several promoters. They can be divided in three different groups: the constitutive promoters from the [http://partsregistry.org/Part:BBa_J23100 Anderson collection] from the partsregistry, the constitutive promoters P''liaG'', P''veg'' and P''lepA'' from ''B. subtilis'' as well as the inducible promoter P''liaI'' from ''B. subtilis''. For the characterization of the different promoters they were all cloned upstream of reporter genes (lux operon, lacZ) to measure their activity in ''B. subtilis'' by regarding the gene expression of the reporter gene.</p>
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====Anderson promoters====
====Anderson promoters====
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The first group of promoters evaluated are the promoters of the Anderson collection which we call ''Anderson promoters''. They have already been measured in ''Escherichia coli'' and they all showed a constitutive behaviour but with a different strength. In this project, these Anderson promoters were measured in ''B. subtilis''. As they have already been evaluated in ''E. coli'', they were already in the partsregistry in the vector where they are fused to the ''Red fluorescent protein'' (RFP). For evaluation they were cut out of the vector and then first cloned in BioBrick standard in the empty vector pSB1C3 to send them to the registry. In addition, eleven (J23100,J23101, J23102, J23103, J23106, J23107, J23113, J23114, J23115, J23117, J23118) of the nineteen promoters of the Anderson collection were successfully cloned in the reporter vector pSB<sub>Bs</sub>3C-<i>luxABCDE</i> from the BioBrickBox containing the ''lux'' operon as a reporter for promoter activity. The gene expression which correlates to the promoter activity leads to the expression of the ''lux'' operon with the luciferase. The luminescence which is produced by the luciferase can be measured with the plate reader (BioTek). To measure the activity not only with the lux reporter operon, four promoters were cloned into the reporter vector pSB<sub>Bs</sub>1C-''lacZ'' to do beta-galactosidase assays and then to compare the results of the strength of these promoters in ''B. subtilis''.
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<p align="justify">The first group of promoters evaluated are the promoters of the Anderson collection which we call ''Anderson promoters''. They have already been measured in ''Escherichia coli'' and they all showed a constitutive behaviour but with a different strength. In this project, these Anderson promoters were measured in ''B. subtilis''. As they have already been evaluated in ''E. coli'', they were already in the partsregistry in the vector where they are fused to the ''Red fluorescent protein'' (RFP). For evaluation they were cut out of the vector and then first cloned in BioBrick standard in the empty vector pSB1C3 to send them to the registry. In addition, eleven (J23100,J23101, J23102, J23103, J23106, J23107, J23113, J23114, J23115, J23117, J23118) of the nineteen promoters of the Anderson collection were successfully cloned in the reporter vector pSB<sub>Bs</sub>3C-<i>luxABCDE</i> from the BioBrickBox containing the ''lux'' operon as a reporter for promoter activity. The gene expression which correlates to the promoter activity leads to the expression of the ''lux'' operon with the luciferase. The luminescence which is produced by the luciferase can be measured with the plate reader (BioTek). To measure the activity not only with the lux reporter operon, four promoters were cloned into the reporter vector pSB<sub>Bs</sub>1C-''lacZ'' to do beta-galactosidase assays and then to compare the results of the strength of these promoters in ''B. subtilis''.</p>
====Constitutive promoters from ''B. subtilis''====
====Constitutive promoters from ''B. subtilis''====
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The second group of promoters are constitutive promoters from ''B. subtilis''. We will evaluate the promoters P<sub>''liaG''</sub>, P<sub>''veg''</sub> and P<sub>''lepA''</sub>. Therefore we will use the reporter vectors pSB<sub>Bs</sub>3C-<i>luxABCDE</i> and pSB<sub>Bs</sub>1C-''lacZ'' to evaluate the promoters with different reporters, the ''lux'' operon and the ''lacZ'' gene. Therefore the promoters will be amplified from the genom of ''B. subtilis'' with primers that conatin the restriction sites of the BioBrick standard. Then these constitutive promoters will be cloned into the empty vector pSB1C3 to send them to the registry as well as the two reporter vectors to evaluate their strength in ''B. subtilis''.
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<p align="justify">The second group of promoters are constitutive promoters from ''B. subtilis''. We will evaluate the promoters P<sub>''liaG''</sub>, P<sub>''veg''</sub> and P<sub>''lepA''</sub>. Therefore we will use the reporter vectors pSB<sub>Bs</sub>3C-<i>luxABCDE</i> and pSB<sub>Bs</sub>1C-''lacZ'' to evaluate the promoters with different reporters, the ''lux'' operon and the ''lacZ'' gene. Therefore the promoters will be amplified from the genom of ''B. subtilis'' with primers that conatin the restriction sites of the BioBrick standard. Then these constitutive promoters will be cloned into the empty vector pSB1C3 to send them to the registry as well as the two reporter vectors to evaluate their strength in ''B. subtilis''.</p>
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====Inducible promoters from ''B. subtilis''====
====Inducible promoters from ''B. subtilis''====
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The last group of promoters consists of inducible promoters of ''B. subtilis'' e.g. P''<sub>liaI</sub>''. They are useful to decide when to turn on gene expression because these promoters need an inducer to start transcription. P''<sub>liaI</sub>'' can be induced by antibiotics which interact with the lipidII cycle, e.g. bacitracin. In this project this promoter is evaluated like the constitutive promoters with the reporter vector pSB<sub>Bs</sub>3C-<i>luxABCDE</i> which contains the ''lux'' operon as a reporter and with the vector pSB<sub>Bs</sub>1C-''lacZ'' which conatins the ''lacZ'' reporter gene. Therefore the promoters will be amplified from the genom of ''B. subtilis'' with primers that conatain the restriction sites of the BioBrick standard. Then these inducible promoters will be cloned into the empty vector pSB1C3 to send them to the registry as well as the two reporter vectors to evaluate their strength in ''B. subtilis''. To turn the promoter on we have to add an inducer.
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<p align="justify">The last group of promoters consists of inducible promoters of ''B. subtilis'' e.g. P''<sub>liaI</sub>''. They are useful to decide when to turn on gene expression because these promoters need an inducer to start transcription. P''<sub>liaI</sub>'' can be induced by antibiotics which interact with the lipidII cycle, e.g. bacitracin. In this project this promoter is evaluated like the constitutive promoters with the reporter vector pSB<sub>Bs</sub>3C-<i>luxABCDE</i> which contains the ''lux'' operon as a reporter and with the vector pSB<sub>Bs</sub>1C-''lacZ'' which conatins the ''lacZ'' reporter gene. Therefore the promoters will be amplified from the genom of ''B. subtilis'' with primers that conatain the restriction sites of the BioBrick standard. Then these inducible promoters will be cloned into the empty vector pSB1C3 to send them to the registry as well as the two reporter vectors to evaluate their strength in ''B. subtilis''. To turn the promoter on we have to add an inducer.</p>
==Bacillus Reporters==
==Bacillus Reporters==
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We designed some reporters that are commonly used in ''B. subtilis'' or are codon optimized versions of popular reporter genes. Alle reporters have a modified iGEM Freiburg standard ([http://partsregistry.org/Help:Assembly_standard_25 RCF 25]) pre- and suffix for assembly of in-frame fusion proteins. Our prefix also includes the ''B. subitlis'' optimized RBS.
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<p align="justify">We designed some reporters that are commonly used in ''B. subtilis'' or are codon optimized versions of popular reporter genes. Alle reporters have a modified iGEM Freiburg standard ([http://partsregistry.org/Help:Assembly_standard_25 RCF 25]) pre- and suffix for assembly of in-frame fusion proteins. Our prefix also includes the ''B. subitlis'' optimized RBS.</p>
prefix: GAATTCCGCGGCCGCTTCTAGATAAGGAGGAACTACTATGGCCGGC
prefix: GAATTCCGCGGCCGCTTCTAGATAAGGAGGAACTACTATGGCCGGC
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*'''GFP'''
*'''GFP'''
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We took a ''gfp'' derivate of the ''Bacillus subtilis'' plasmids pGFPamy and added the BioBrick compatiple pre- and suffix of the Freiburg standard (Assembly 25).
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<p align="justify">We took a ''gfp'' derivate of the ''Bacillus subtilis'' plasmids pGFPamy and added the BioBrick compatiple pre- and suffix of the Freiburg standard (Assembly 25).</p>
*'''mKate'''
*'''mKate'''
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We synthesized this ''rfp'' derivate with a codon-optimized version for the use in ''B. subtilis'' with pre- and suffix of the Freiburg standard
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<p align="justify">We synthesized this ''rfp'' derivate with a codon-optimized version for the use in ''B. subtilis'' with pre- and suffix of the Freiburg standard</p>
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*'''LacZ'''
*'''LacZ'''
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[[File:LacZ plate.png|''lacZ'' under the control of Pspac in pSBC3. Plate induced with Xylose (ng/µl)|thumb|300px|right]]
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[[File:LacZ plate.png|''lacZ'' under the control of Pspac in pSBC3. Plate induced with Xylose (ng/µl)|thumb|300px|left]]
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This lacZ gene is derived from the Bacillus reporter vector pAC6. It is constructed in the Freiburg Standard (Assembly 25) for in-frame fusion proteins. It also includes a Shine-Dalgarno Sequence optimized for Bacillus subtilis translation.
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<p align="justify">This lacZ gene is derived from the Bacillus reporter vector pAC6. It is constructed in the Freiburg Standard (Assembly 25) for in-frame fusion proteins. It also includes a Shine-Dalgarno Sequence optimized for Bacillus subtilis translation.</p>
BioBrick Name: [http://partsregistry.org/wiki/index.php?title=Part:BBa_K823019 BBa_K823019]
BioBrick Name: [http://partsregistry.org/wiki/index.php?title=Part:BBa_K823019 BBa_K823019]
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*'''luc'''
*'''luc'''
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We synthesized this luciferase for luminescence assays with luciferin as substrate.
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<p align="justify">We synthesized this luciferase for luminescence assays with luciferin as substrate.</p>

Revision as of 14:25, 10 September 2012

iGEM Ludwig-Maximilians-Universität München Beadzillus

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The LMU-Munich team is exuberantly happy about the great success at the World Championship Jamboree in Boston. Our project Beadzillus finished 4th and won the prize for the "Best Wiki" (with Slovenia) and "Best New Application Project".

IGEM HQ LMU prize.jpg

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