ETHZ/Biology/parts
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<center>[[ETHZ | Main Page]] [[ETHZ/Model | System Modeling]] [[ETHZ/Simulation | Simulations]] [[ETHZ/Biology | System Implementation]] [[ETHZ/Biology/Lab| Lab Notes]] [[ETHZ/Meet_the_team | Meet the Team]] [[ETHZ/Internal | Team Notes]] [[ETHZ/Pictures | Pictures!]]</center><br> | <center>[[ETHZ | Main Page]] [[ETHZ/Model | System Modeling]] [[ETHZ/Simulation | Simulations]] [[ETHZ/Biology | System Implementation]] [[ETHZ/Biology/Lab| Lab Notes]] [[ETHZ/Meet_the_team | Meet the Team]] [[ETHZ/Internal | Team Notes]] [[ETHZ/Pictures | Pictures!]]</center><br> | ||
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- | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ#Introduction">Introduction | + | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ#Introduction">Introduction</a> |
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- | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Model#Introduction">Introduction | + | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Model#Introduction">Introduction</a> |
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- | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Simulation#Introduction">Introduction | + | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Simulation#Introduction">Introduction</a> |
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- | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Biology#Introduction">Introduction | + | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Biology#Introduction">Introduction</a> |
- | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Biology#The_Complete_System">The Complete System | + | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Biology#The_Complete_System">The Complete System</a> |
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+ | <a href="https://2007.igem.org/wiki/index.php?title=ETHZ/Biology#Current_Cloning_Status">Current Cloning Status</a> | ||
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= System Parts = | = System Parts = | ||
- | + | EducatETH <i>E.coli</i> consists of 11 parts that can be synthesized independently (want to know how this is done in the lab? Then visit our [https://2007.igem.org/ETHZ/Biology/Lab In the Lab] page!). Four of them (4,5 and 8,9) form together two functional system units, but they have been separated to ensure comparable part lengths and thus enable easier introduction into plasmids. Are you interested in the structure, mode of action or purpose of individual parts? Just click on the specific links in the third column. This will directly guide you to the entries in the [http://partsregistry.org/Main_Page Registry of Standard Biological Parts]. All 11 educatETH <i>E.coli</i> parts are listed in the following table: | |
{| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | {| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | ||
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| <partinfo>BBa_I739013 SpecifiedComponents</partinfo> | | <partinfo>BBa_I739013 SpecifiedComponents</partinfo> | ||
|- | |- | ||
- | ! 4+ | + | ! 4+5new |
| P22 cII + EYFP production | | P22 cII + EYFP production | ||
| [http://partsregistry.org/Part:BBa_I739015 BBa_I739015] | | [http://partsregistry.org/Part:BBa_I739015 BBa_I739015] | ||
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| <partinfo>BBa_I739016 SpecifiedComponents</partinfo> | | <partinfo>BBa_I739016 SpecifiedComponents</partinfo> | ||
|- | |- | ||
- | ! (4+ | + | ! (4+5new)+(8+9) |
| (P22 cII + EYFP) + (cI + ECFP) production | | (P22 cII + EYFP) + (cI + ECFP) production | ||
| [http://partsregistry.org/Part:BBa_I739017 BBa_I739017] | | [http://partsregistry.org/Part:BBa_I739017 BBa_I739017] | ||
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|} | |} | ||
<br> | <br> | ||
- | In order to test if the concept of the proposed double promoters is working, simple proof of concept (PoC) parts have been constructed. The PoC promoter, which shows strong similarites to [http://partsregistry.org/Part:BBa_I739102 BBa_I739102], consists of two TetR operator sequences linked to a constitutive promoter. In contrast to the other double promoters , the PoC promoter is only single regulated. The PoC intermediate is part of the PoC composite the concept can be tested with, that is, EYFP production. The p22cII coding region is included to ensure the functionality in multicistronic constructs. | + | In order to test if the concept of the proposed double promoters is working, simple proof of concept (PoC) parts have been constructed. The PoC promoter, which shows strong similarites to [http://partsregistry.org/Part:BBa_I739102 BBa_I739102], consists of two TetR operator sequences linked to a constitutive promoter. In contrast to the other double promoters, the PoC promoter is only single regulated. The PoC intermediate is part of the PoC composite the concept can be tested with, that is, EYFP production. The p22cII coding region is included to ensure the functionality in multicistronic constructs. |
{| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | {| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | ||
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|} | |} | ||
<br> | <br> | ||
- | Although the parts have been synthesized by GENEART and also were shipped in their high-copy plasmids, we | + | Although the parts have been synthesized by GENEART and also were shipped in their high-copy plasmids, we decided to change the cloning vectors. This strategy is based on the fact that fluorescent proteins are potentially harmful to the cells. The parts containing DNA sequences coding for these reporter proteins are therefore supposed to be cloned in low-copy number plasmids. Summarized, the following plasmids have been constructed: |
{| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | {| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | ||
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|width="285"| pBR322BB1 | |width="285"| pBR322BB1 | ||
| [http://partsregistry.org/Part:BBa_I739201 BBa_I739201] | | [http://partsregistry.org/Part:BBa_I739201 BBa_I739201] | ||
- | |width="250"| | + | |width="250"| low-copy cloning vector, ApR<br>constitutive subsystem |
|width="157"| <partinfo>BBa_I739201 SpecifiedComponents</partinfo> | |width="157"| <partinfo>BBa_I739201 SpecifiedComponents</partinfo> | ||
|- | |- | ||
! 2<sup>vec</sup> | ! 2<sup>vec</sup> | ||
- | | | + | | pCK01BB1 |
| [http://partsregistry.org/Part:BBa_I739202 BBa_I739202] | | [http://partsregistry.org/Part:BBa_I739202 BBa_I739202] | ||
- | | | + | | low-copy cloning vector, CmR<br>reporting subsystem |
| <partinfo>BBa_I739202 SpecifiedComponents</partinfo> | | <partinfo>BBa_I739202 SpecifiedComponents</partinfo> | ||
|- | |- | ||
! 3<sup>vec</sup> | ! 3<sup>vec</sup> | ||
- | | | + | | pBR322BB2 |
| [http://partsregistry.org/Part:BBa_I739203 BBa_I739203] | | [http://partsregistry.org/Part:BBa_I739203 BBa_I739203] | ||
- | | low-copy cloning vector, | + | | low-copy cloning vector, TcR |
| <partinfo>BBa_I739203 SpecifiedComponents</partinfo> | | <partinfo>BBa_I739203 SpecifiedComponents</partinfo> | ||
|- | |- | ||
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<br> | <br> | ||
- | Two ''E. coli'' strains have been used in this project. In the beginning, only the Top10 strain was worked with. But in a later stage of the project, using JM101 cells seemed to be more productive since they | + | Two ''E. coli'' strains have been used in this project. In the beginning, only the Top10 strain was worked with. But in a later stage of the project, using JM101 cells seemed to be more productive since they grow faster than the Top10 cells. |
{| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" | {| class="wikitable" border="1" cellspacing="0" cellpadding="2" style="text-align:center; margin: 1em 1em 1em 0; background: #f9f9f9; border: 1px #aaa solid; border-collapse: collapse;" |
Latest revision as of 19:56, 26 October 2007
System Parts
EducatETH E.coli consists of 11 parts that can be synthesized independently (want to know how this is done in the lab? Then visit our In the Lab page!). Four of them (4,5 and 8,9) form together two functional system units, but they have been separated to ensure comparable part lengths and thus enable easier introduction into plasmids. Are you interested in the structure, mode of action or purpose of individual parts? Just click on the specific links in the third column. This will directly guide you to the entries in the [http://partsregistry.org/Main_Page Registry of Standard Biological Parts]. All 11 educatETH E.coli parts are listed in the following table:
1 | TetR production | [http://partsregistry.org/Part:BBa_I739001 BBa_I739001] | constitutive subsystem | |
---|---|---|---|---|
2 | LacI production | [http://partsregistry.org/Part:BBa_I739002 BBa_I739002] | constitutive subsystem | |
3 | LuxR production | [http://partsregistry.org/Part:BBa_I739003 BBa_I739003] | constitutive subsystem | |
4 | 1st half of P22 cII / EYFP production | [http://partsregistry.org/Part:BBa_I739004 BBa_I739004] | reporting subsystem | |
5 | 2nd half of P22 cII / EYFP production | [http://partsregistry.org/Part:BBa_I739005 BBa_I739005] | reporting subsystem | |
5new | 2nd half of P22 cII / EYFP production | [http://partsregistry.org/Part:BBa_E0430 BBa_E0430] | reporting subsystem | |
6 | cI production | [http://partsregistry.org/Part:BBa_I739006 BBa_I739006] | learning subsystem | |
7 | P22 cII production | [http://partsregistry.org/Part:BBa_I739007 BBa_I739007] | learning subsystem | |
8 | 1st half of cI / ECFP production | [http://partsregistry.org/Part:BBa_I739008 BBa_I739008] | reporting subsystem | |
9 | 2nd half of cI / ECFP production | [http://partsregistry.org/Part:BBa_I739009 BBa_I739009] | reporting subsystem | |
10 | RFP production | [http://partsregistry.org/Part:BBa_I739010 BBa_I739010] | reporting subsystem | |
11 | GFP production | [http://partsregistry.org/Part:BBa_I739011 BBa_I739011] | reporting subsystem |
Those 11 basic parts have been further assembled into intermediates and composites, which in turn enable the system to operate:
2+3 | lacI + luxR production | [http://partsregistry.org/Part:BBa_I739012 BBa_I739012] | constitutive subsystem | |
---|---|---|---|---|
1+2+3 | tetR + lacI + luxR production | [http://partsregistry.org/Part:BBa_I739013 BBa_I739013] | constitutive subsystem | |
4+5new | P22 cII + EYFP production | [http://partsregistry.org/Part:BBa_I739015 BBa_I739015] | reporting subsystem | |
8+9 | cI + ECFP production | [http://partsregistry.org/Part:BBa_I739016 BBa_I739016] | reporting subsystem | |
(4+5new)+(8+9) | (P22 cII + EYFP) + (cI + ECFP) production | [http://partsregistry.org/Part:BBa_I739017 BBa_I739017] | reporting subsystem | |
6+7 | cI + P22 cII production | [http://partsregistry.org/Part:BBa_I739018 BBa_I739018] | learning subsystem | |
10+11 | RFP + GFP production | [http://partsregistry.org/Part:BBa_I739019 BBa_I739019] | reporting subsystem | |
(6+7)+(10+11) | (cI + P22 cII) + (RFP + GFP) production | [http://partsregistry.org/Part:BBa_I739020 BBa_I739020] | learning/reporting subsystem |
Many of the above mentioned parts contain double promoters. This promoter constructs contain two independent classes of operator sites and can therefore be regulated by two different types of molecules. Double promoters form the basis of the multi-inducible toggle switch and hence the memory of our learning system. This concept could also help future projects in developing devices and systems that need extended regulation. In the following, we introduce a selection of first generation double promoters:
1pro | cI negative / tetR negative promoter | [http://partsregistry.org/Part:BBa_I739102 BBa_I739102] | reporting subsystem | |
---|---|---|---|---|
2pro | lacI negative / P22 cII negative promoter | [http://partsregistry.org/Part:BBa_I739103 BBa_I739103] | reporting subsystem | |
3pro | luxR/HSL positive / P22 cII negative promoter | [http://partsregistry.org/Part:BBa_I739104 BBa_I739104] | learning subsystem | |
4pro | luxR/HSL positive / cI negative promoter | [http://partsregistry.org/Part:BBa_I739105 BBa_I739105] | learning subsystem | |
5pro | tetR negative / P22 cII negative promoter | [http://partsregistry.org/Part:BBa_I739106 BBa_I739106] | reporting subsystem | |
6pro | cI negative / lacI negative promoter | [http://partsregistry.org/Part:BBa_I739107 BBa_I739107] | reporting subsystem |
In order to test if the concept of the proposed double promoters is working, simple proof of concept (PoC) parts have been constructed. The PoC promoter, which shows strong similarites to [http://partsregistry.org/Part:BBa_I739102 BBa_I739102], consists of two TetR operator sequences linked to a constitutive promoter. In contrast to the other double promoters, the PoC promoter is only single regulated. The PoC intermediate is part of the PoC composite the concept can be tested with, that is, EYFP production. The p22cII coding region is included to ensure the functionality in multicistronic constructs.
1poc | PoC promoter | [http://partsregistry.org/Part:BBa_I739101 BBa_I739101] | proof of concept, no part of the system | |
---|---|---|---|---|
2poc | PoC intermediate | [http://partsregistry.org/Part:BBa_I739014 BBa_I739014] | proof of concept, no part of the system | |
3poc | PoC composite | [http://partsregistry.org/Part:BBa_I739021 BBa_I739021] | proof of concept, no part of the system |
Although the parts have been synthesized by GENEART and also were shipped in their high-copy plasmids, we decided to change the cloning vectors. This strategy is based on the fact that fluorescent proteins are potentially harmful to the cells. The parts containing DNA sequences coding for these reporter proteins are therefore supposed to be cloned in low-copy number plasmids. Summarized, the following plasmids have been constructed:
1vec | pBR322BB1 | [http://partsregistry.org/Part:BBa_I739201 BBa_I739201] | low-copy cloning vector, ApR constitutive subsystem | |
---|---|---|---|---|
2vec | pCK01BB1 | [http://partsregistry.org/Part:BBa_I739202 BBa_I739202] | low-copy cloning vector, CmR reporting subsystem | |
3vec | pBR322BB2 | [http://partsregistry.org/Part:BBa_I739203 BBa_I739203] | low-copy cloning vector, TcR | |
4vec | pACYC177BB1 | [http://partsregistry.org/Part:BBa_I739204 BBa_I739204] | low-copy cloning vector, KmR learning and reporting subsystem |
Two E. coli strains have been used in this project. In the beginning, only the Top10 strain was worked with. But in a later stage of the project, using JM101 cells seemed to be more productive since they grow faster than the Top10 cells.
1str | Top10 | [http://partsregistry.org/Part:BBa_V1009 BBa_V1009] | chemically competent E.coli from Invitrogen | |
---|---|---|---|---|
2str | JM101 | [http://partsregistry.org/Part:BBa_I739301 BBa_I739301] | original blue/white cloning strain |