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| <article> | | <article> |
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| + | {{Groningen/Achievements}} |
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| <section> | | <section> |
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| + | <div class="split"> |
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| <h2>Overview of constructed BioBricks</h2> | | <h2>Overview of constructed BioBricks</h2> |
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| <p>The BioBricks that were successfully constructed during our project: | | <p>The BioBricks that were successfully constructed during our project: |
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− | <ul><li><a href="/Team:Groningen/Labjournal#Key-in-pSB1C3"> BBa_K193000: Key in pSB1C3</a></ul></li> | + | <ul><li><a href="/Team:Groningen/Labjournal#Key-in-pSB1C3"> BBa_K1930000: Key in pSB1C3</a></ul></li> |
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− | <ul><li><a href="/Team:Groningen/Labjournal#Message-in-pSB1C3"> BBa_K193001: Message in pSB1C3</a> </ul></li> | + | <ul><li><a href="/Team:Groningen/Labjournal#Message-in-pSB1C3"> BBa_K1930001: Message in pSB1C3</a> </ul></li> |
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− | <ul><li> <a href="/Team:Groningen/Labjournal#Key-in-BBa_K823023">BBa_K193002: Key in K823023</a></ul></li>
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− | <ul><li> <a href="/Team:Groningen/Labjournal#Message-in-K823023">BBa_K193003: Message in K823023</a></ul></li>
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− | <ul><li> <a href="/Team:Groningen/Labjournal#Cipro-in-pSB1C3">BBa_K193004: qnrS1 in pSB1C3</a></ul></li> | + | <ul><li> <a href="/Team:Groningen/Labjournal#Cipro-in-pSB1C3">BBa_K1930004: <em>qnrS1</em> in pSB1C3</a></ul></li> |
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− | <ul><li><a href="/Team:Groningen/Labjournal#PatpI-in-pSB1C3"> BBa_K193005: pATPI in pSB1C3</a></ul></li> | + | <ul><li><a href="/Team:Groningen/Labjournal#PatpI-in-pSB1C3"> BBa_K1930005: pATPI in pSB1C3</a></ul></li> |
− | <ul><li><a href="/Team:Groningen/Labjournal#sfGFP-Sp-in-pSB1C3"> BBa_K193006: BBa_K193006 sfGFP in pSB1C3</a></ul></li> | + | <ul><li><a href="/Team:Groningen/Labjournal#sfGFP-Sp-in-pSB1C3"> BBa_K1930006: sfGFP in pSB1C3</a></ul></li> |
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− | <ul><li><a href="/Team:Groningen/Labjournal#Cipro-in-K823023"> BBa_K193007: qnrS1 in K823023</a></ul></li></p>
| + | </p> |
− | </section> | + | |
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− | </html> | + | |
− | {{Groningen/Achievements}}
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− | <html> | + | </div> |
| + | <div class="right flone cycler"> |
| + | <img src="https://static.igem.org/mediawiki/2016/thumb/0/01/T--Groningen--Results-biobricks.jpg/800px-T--Groningen--Results-biobricks.jpg" /> |
| + | <img class="active base" src="https://static.igem.org/mediawiki/2016/5/56/T--Groningen---Results---BBs-.jpeg" /> |
| + | </div> |
| + | </div> |
| + | </section> |
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| <section> | | <section> |
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| <h2>Integration and recovery of messages in DNA</h2> | | <h2>Integration and recovery of messages in DNA</h2> |
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| + | <div class="split"> |
| + | <div class="left flone"> |
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− | <p>We integrated an encrypted message and a key sequence into the amyE locus of the genome of two different <em>Bacillus subtilis</em> strains. Both Bacillus strains were treated to form spores. Subsequently the spores were allowed to germinate, the DNA was isolated and the key and message sequences were amplified using corresponding primers. The amplified DNA was sequenced and we inserted the sequencing results into our encryption and decryption machine (link). We were able to recover our key and with the key we could decrypt the sequencing results for the message. We could recover our message stored in DNA! | + | <p>We integrated an encrypted message and a key sequence into the amyE locus of the genome of two different <em>Bacillus subtilis</em> strains. Both <em>Bacillus</em> strains were treated to form spores. Subsequently the spores were allowed to germinate, the DNA was isolated and the key and message sequences were amplified using corresponding primers. The amplified DNA was sequenced and we inserted the sequencing results into our encryption and decryption machine (<a href="/Team:Groningen/Encoding">Encoder</a> and <a href="/Team:Groningen/Decoding">Decoder</a>) . We were able to recover our key and with the key we could decrypt the sequencing results for the message. We could recover our message stored in DNA! |
| To test out the system under real life conditions we sent the message-spores and the corresponding primers to two iGEM teams in the Netherlands. They also recieved the key from us in order to encrypt the message. The iGEM teams from Eindhoven and Wageningen were both able to decrypt our message. Our concept is working! | | To test out the system under real life conditions we sent the message-spores and the corresponding primers to two iGEM teams in the Netherlands. They also recieved the key from us in order to encrypt the message. The iGEM teams from Eindhoven and Wageningen were both able to decrypt our message. Our concept is working! |
| <ul><li><a href="/Team:Groningen/Proof">Read more about our proof of concept.</a></ul></li> | | <ul><li><a href="/Team:Groningen/Proof">Read more about our proof of concept.</a></ul></li> |
− | <ul><li><a href="/Team:Groningen/Demonstrate">Read more about our collaboration with Eindhoven and Wageningen.</a></ul></li></p> | + | <ul><li><a href="/Team:Groningen/Collaborations">Read more about our collaboration with Eindhoven and Wageningen.</a></ul></li></p> |
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| + | </div> |
| + | <div class="right flone"> |
| + | <video controls preload="metadata"> |
| + | <source src="https://static.igem.org/mediawiki/2016/b/b6/T--Groningen--Results-sporesending.mp4" /> |
| + | </video> |
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| + | <figcaption>Watch how we send the spores to the iGEM teams Wageningen and Eindhoven!</figcaption> |
| + | </div> |
| + | </div> |
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| </section> | | </section> |
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| <section> | | <section> |
| + | <div class="split"> |
| + | <div class="left flone"> |
| <h2>CRISPR/Cas9 key deletion</h2> | | <h2>CRISPR/Cas9 key deletion</h2> |
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− | <p>We successfully annealed the sgRNA of the message and the key. The ligation of these with the vector pJOE8999 failed. We managed to amplify the two PAM sequences of 700 bps of the <em>B. subtilis</em> genome. We attempted to amplify the tetR from its plasmid backbone, unfortunately the PCR failed. This subproject should be repeated from the beginning. | + | <p>We successfully annealed the sgRNA of the message and the key. The ligation of these with the vector pJOE8999 failed. We managed to amplify the two PAM sequences of 700 bp of the <em>B. subtilis</em> genome. We attempted to amplify the tetR from its plasmid backbone, unfortunately the PCR failed. This subproject should be repeated from the beginning. |
| <ul><li><a href="/Team:Groningen/KeyDeletion">Read more about our CRISPR/Cas9 key deletion.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/KeyDeletion">Read more about our CRISPR/Cas9 key deletion.</a></ul></li></p> |
| + | </div> |
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| + | <div class="right flone"> |
| + | <img src="https://static.igem.org/mediawiki/2016/thumb/b/b2/T--Groningen--Safety-RIVMdrawing.png/800px-T--Groningen--Safety-RIVMdrawing.png.jpeg" /> |
| + | </div> |
| + | </div> |
| </section> | | </section> |
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| <h2>Decoy experiment</h2> | | <h2>Decoy experiment</h2> |
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− | <p>In order to test the efficiency of selecting the correct key spores from decoy we conducted flow cytometer measurements. Additionally we observed the selection efficiency with a microscope. For this experiments we used the BioBrick BBa_K193006 sfGFP in pSB1C3. It could clearly be observed that the antibiotic selection was successfull. Though, the expected outgrowing of the decoy cells in order to hide the key-cells could not be observed. In the future this experiment should be repeated to find a concentration of decoy cells that outgrows the key cells. Also the experiment should be repeated while using spores instead of living cells to adjust the experiment to real life conditions. | + | <p>In order to test the efficiency of selecting the correct key spores from decoy we conducted flow cytometer measurements. Additionally we observed the selection efficiency with a microscope. For this experiments we used the BioBrick BBa_K1930006 sfGFP in pSB1C3. It could clearly be observed that the antibiotic selection was successfull. Though, the expected outgrowing of the decoy cells in order to hide the key-cells could not be observed. In the future this experiment should be repeated to find a concentration of decoy cells that outgrows the key cells. Also the experiment should be repeated while using spores instead of living cells to adjust the experiment to real life conditions. |
| <ul><li><a href="/Team:Groningen/Decoy">Read more about the decoy experiment.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/Decoy">Read more about the decoy experiment.</a></ul></li></p> |
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| </div> | | </div> |
| <div class="right flone"> | | <div class="right flone"> |
− | <img src="https://static.igem.org/mediawiki/2016/f/fe/T--Groningen---Design---glowingcell-.png" /> | + | <img src="https://static.igem.org/mediawiki/2016/thumb/2/2d/T--Groningen--Notebook-sfgfp-ecoli.jpg/800px-T--Groningen--Notebook-sfgfp-ecoli.jpg" /> |
| </div> | | </div> |
| </div> | | </div> |
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| + | <div class="split"> |
| + | <div class="left flone"> |
| <section> | | <section> |
| <h2>MIC and MBC of ciprofloxacin.</h2> | | <h2>MIC and MBC of ciprofloxacin.</h2> |
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− | <p>The MIC and MBC of ciprofloxacin on wild-type <em>Bacillus subtilis</em> 168 were determined to be between 170-180 nM (MIC) and 180 nM (MBC). Subsequently, the MIC of E. coli top 10 and <em>B. subtilis</em> 168 carrying the qnrS1 ciprofloxacin resistance gene was determined to be between 1000 - 2000 nM, and 400 - 500 nM, respectively. This is a significant improvement in antibiotic tolerance when compared to the MIC values of the wild-type strains (100-130 nM for E. coli and 170-180 nM for <em>B. subtilis</em>). Finally, the MIC value of a <em>B. subtilis</em> 168 isolate resistant to ciprofloxacin (obtained via directed evolution) was determined to be greater than 20,000 nM, which is a huge improvement in ciprofloxacin resistance over both the wild-type strain, and the strain carrying qnrS1. In the future, the qnrS1 and aac(6')-Ib-cr fluoroquinolone resistance genes could be introduced into this highly resistant strain for even greater ciprofloxacin resistance. | + | <p>The MIC and MBC of ciprofloxacin on wild-type <em>Bacillus subtilis</em> 168 were determined to be between 160-170 nM (MIC) and 180 nM (MBC). Subsequently, the MIC of <em>E. coli</em> top 10 and <em>B. subtilis</em> 168 carrying the <em>qnrS1</em> ciprofloxacin resistance gene was determined to be between 1,000 - 2,000 nM, and 400 - 500 nM, respectively. This is a significant improvement in antibiotic tolerance when compared to the MIC values of the wild-type strains (100-130 nM for <em>E. coli</em> and 170-180 nM for <em>B. subtilis</em>). Finally, the MIC value of a <em>B. subtilis</em> 168 isolate resistant to ciprofloxacin (obtained via directed evolution) was determined to be greater than 20,000 nM, which is a huge improvement in ciprofloxacin resistance over both the wild-type strain, and the strain carrying <em>qnrS1</em>. In the future, the <em>qnrS1</em> and <em>aac(6')-Ib-cr</em> quinolone resistance genes could be introduced into this highly resistant strain for even greater ciprofloxacin resistance. |
| <ul><li><a href="/Team:Groningen/PhotoswitchableAntibiotics">Read more about the MIC and MBC determination.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/PhotoswitchableAntibiotics">Read more about the MIC and MBC determination.</a></ul></li></p> |
| </section> | | </section> |
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| + | |
| + | </div> |
| + | <div class="right flone"> |
| + | <img src="https://static.igem.org/mediawiki/2016/thumb/2/21/T--Groningen--Notebook-plate-reader.jpg/800px-T--Groningen--Notebook-plate-reader.jpg" /> |
| + | </div> |
| + | </div> |
| + | </section> |
| <section> | | <section> |
| + | <div class="split"> |
| + | <div class="left flone"> |
| <h2>Molecular Dynamics modelling</h2> | | <h2>Molecular Dynamics modelling</h2> |
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− | <p>We used molecular dynamics methods, in particular umbrella sampling, to identify a priori which strains of <em>B. subtilis</em> would be more susceptible to spirofloxacin. Thus, when the antibiotic was in its active state it would have a higher wild-type vs mutant killing ratio. However, due to the lack of consistent results in its experimental phase we decided not to continue with the photoswitchable antibiotic approach. | + | <p>We used molecular dynamics methods, in particular umbrella sampling, to identify <em>a priori</em> which strains of <em>B. subtilis</em> would be more susceptible to spirofloxacin. Thus, when the antibiotic was in its active state it would have a higher wild-type vs mutant killing ratio. However, due to the lack of consistent results in its experimental phase we decided not to continue with the photoswitchable antibiotic approach. |
− | <ul><li><a href="/Team:Groningen/xxx">Read more about the molecular dynamics modelling.</a></ul></li></p> | + | <ul><li><a href="/Team:Groningen/SpiroModel">Read more about the molecular dynamics modelling.</a></ul></li></p> |
| + | </div> |
| + | <div class="right flone"> |
| + | <img src="https://static.igem.org/mediawiki/2016/6/68/T--Groningen---spiromodelling---spirogif-.gif" /> |
| + | </div> |
| + | </div> |
| </section> | | </section> |
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| <section> | | <section> |
− | <h2>Characterization of the BioBrick BBa_K823023</h2>
| + | <div class="split"> |
− |
| + | <div class="left flone"> |
− | <p>We managed to successfully calculate the transformation efficiency of BBa_K823023. Transformation with 10 ng or 100 ng DNA worked well for integration. BBa_K823023 could therefore be used as integration vector for the message and key in the genome of <em>B. subtilis.</em> | + | <h2>Characterization of the BioBrick <a href="http://parts.igem.org/Part:BBa_K823023:Experience">BBa_K823023</a></h2> |
− | <ul><li><a href="/Team:Groningen/Experiments#brick-character">Read more about the transformation efficiency experiment.</a></ul></li></p>
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− | </section>
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− | <section>
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− | <h2>NucA kill switch – improvement of a part</h2>
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− | <p>In our project we constructed a system which will destroy the key DNA sequence if tetracycline or tetracycline analog aTc (anhydrotetracycline) is not be added while growing cells. For this construct four parts were needed. The main part was nuclease from Staphylococcus aureus (nucA), this was ordered from iGEM headquarters as an available BioBrick BBa_K729004 from iGEM team University College London 2012. We have tried to assemble our desired construct (see first step RBS+nucA), but after sequencing of this plasmid (RBS+nucA), we realized that the nuclease BioBrick (BBa_K729004) has an incorrect prefix. Due to time limitation, it was decided that we will not continue with cloning of our desired nuclease construct, but we will make an improvement of this part and we will try to fix the incorrect prefix. | + | <p>We managed to successfully calculate the transformation efficiency of <a href="http://parts.igem.org/Part:BBa_K823023:Experience">BBa_K823023</a>. Transformation with 10 ng and with 100 ng DNA worked well for integration. <a href="http://parts.igem.org/Part:BBa_K823023:Experience">BBa_K823023</a> could therefore be used as integration vector for the message and key in the genome of <em>B. subtilis.</em> |
− | <ul><li><a href="/Team:Groningen/Labjournal#improved-nucA-in-pSB1C3">Read more about our improvement of the BioBrick BBa_K729004.</a></ul></li></p> | + | <ul><li><a href="/Team:Groningen/BrickCharacter">Read more about the transformation efficiency experiment.</a></ul></li></p> |
| + | </div> |
| + | <div class="right flone"> |
| + | <img src="https://static.igem.org/mediawiki/2016/0/00/T--Groningen--TransformEffK8-1.jpg" /> |
| + | </div> |
| + | </div> |
| </section> | | </section> |
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| <div class="right flone"> | | <div class="right flone"> |
| <img src="https://static.igem.org/mediawiki/2016/d/da/T--Groningen---Results---BDI-.jpeg" /> | | <img src="https://static.igem.org/mediawiki/2016/d/da/T--Groningen---Results---BDI-.jpeg" /> |
| + | </div> |
| + | </div> |
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− | </div></div>
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| </section> | | </section> |
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| <section> | | <section> |
− | | + | <div class="split"> |
| + | <div class="left flone"> |
| <h2>Random mutations modelling</h2> | | <h2>Random mutations modelling</h2> |
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− | <p>This model explores the role of random mutations in the <em>Bacillus subtilis</em> bacteria. Considering how the encrypting and storing works, we have created a software which is able to virtually replace parts of the bacteria's DNA and check if the stored data would have been affected by a mutation. Out of 1000 simulations this happened only 3 times, so we deduced that our system is 99.97% accurate on a 556 base pair message. The software is also able to compute the maximum amount of base pairs that can be modified in the bacteria which corresponds to 400,320 bps. | + | <p>This model explores the role of random mutations in the <em>Bacillus subtilis</em> bacteria. Considering how the encrypting and storing works, we have created a software which is able to virtually replace parts of the bacteria's DNA and check if the stored data would have been affected by a mutation. Out of 1,000 simulations this happened only 3 times, so we deduced that our system is 99.97% accurate on a 556 base pair message. The software is also able to compute the maximum amount of base pairs that can be modified in the bacteria which corresponds to 400,320 bp. |
| <ul><li><a href="/Team:Groningen/RandomMutation">Read more about the random mutations modelling.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/RandomMutation">Read more about the random mutations modelling.</a></ul></li></p> |
| + | </div> |
| + | <div class="right flone"> |
| + | <img src="https://static.igem.org/mediawiki/2016/c/c9/T--Groningen---modelling---MatthiaRandom-.jpeg" /> |
| + | </div> |
| + | </div> |
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| </section> | | </section> |
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| <section> | | <section> |
| + | <div class="split"> |
| + | <div class="left flone"> |
| <h2>Collaborations</h2> | | <h2>Collaborations</h2> |
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− | <p>We collaborate with teams from all over the world. We send our message and key to the teams Wageningen and Eindhoven, we analyzed a BioBrick for Wageningen and we filled in a few surveys. In addition we also send a survey to a lot of teams, which has also been translated to Chinese, thanks to XMU-China. At last, we helped translating protocols to Dutch for METU HS Ankara. | + | <p>We collaborate with teams from all over the world. We send our message and key to the teams Wageningen and Eindhoven, we analyzed a BioBrick for Wageningen and we filled in a few surveys. In addition we also send a survey to a lot of teams, which has also been translated to Chinese, thanks to XMU-China. Finally, we helped translating protocols to Dutch for METU HS Ankara. |
| <ul><li><a href="/Team:Groningen/Collaborations">Read more about our collaborations.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/Collaborations">Read more about our collaborations.</a></ul></li></p> |
| + | </div> |
| + | <div class="right flone"> |
| + | <img src="https://static.igem.org/mediawiki/2016/d/dc/T--Groningen--Collaborations--Eike.jpeg" /> |
| + | </div> |
| + | </div> |
| </section> | | </section> |
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| After the Giant Jamboree we will be giving lectures about our project during a science event in Groningen. | | After the Giant Jamboree we will be giving lectures about our project during a science event in Groningen. |
| <ul><li><a href="/Team:Groningen/HP/Education">Read more about our educational part.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/HP/Education">Read more about our educational part.</a></ul></li></p> |
− | </section> | + | |
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| </div> | | </div> |
| <div class="right flone"> | | <div class="right flone"> |
− | <img src="https://static.igem.org/mediawiki/2016/e/eb/T--Groningen--Education-lecture.jpg" /></div></div> | + | <img src="https://static.igem.org/mediawiki/2016/e/eb/T--Groningen--Education-lecture.jpg"/></div></div> |
| + | </section> |
| <section> | | <section> |
| + | <h2>Outreach</h2> |
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| <div class="split"> | | <div class="split"> |
− | <div class="left flone"> | + | <div class="left flone"> |
− | <h2>Outreach</h2>
| + | <p>To communicate our project to general society we gave an interview on the local radio, engaged with them at the night of art and science, had a feature in the university paper and in the magazine of the biology study association. We had more visual representation through a videoclip made by Unifocus and even reached the national news agency (NOS). More in-depth communication of our project to the scientific society was conducted at a barbecue organised for the staff of the university, workshops at the Utrecht campus party and a presentation during the Dutch Biotechnology Conference and at the Groninger Biomolecular Sciences and Biotechnology Institute (GBB). |
− |
| + | |
− | <p>To communicate our project to general society we gave an interview on the local radio, engaged with them at the night of art and science, had a feature in the university paper and in the magazine of the study association of biology. We had more visual representation through a videoclip made by Unifocus and even reached the national news agency (NOS). More in-depth communication of our project to the scientific society was conducted at a barbecue organised for the staff of the university, workshops at the Utrecht campus party and a presentation during the Dutch Biotechnology Conference and at the Groninger Biomolecular Sciences and Biotechnology Institute (GBB). | + | |
| <ul><li><a href="/Team:Groningen/HP/Outreach">Read more about the outreach.</a></ul></li></p> | | <ul><li><a href="/Team:Groningen/HP/Outreach">Read more about the outreach.</a></ul></li></p> |
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| </div> | | </div> |
| <div class="right flone"> | | <div class="right flone"> |
− | <img src="https://static.igem.org/mediawiki/2016/6/61/T--Groningen---Results---Outreach-.jpeg" /> | + | <video controls preload="metadata"> |
| + | <source src="https://static.igem.org/mediawiki/2016/c/cd/T--Groningen--film-unifocus.mp4" /> |
| + | </video> |
| </div> | | </div> |
| </div> | | </div> |
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| <section> | | <section> |
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| <h2>Having a fun summer</h2> | | <h2>Having a fun summer</h2> |
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− | <p>jumping picture, switching fast!</p> | + | <figure><img src="https://static.igem.org/mediawiki/2016/1/19/T--Groningen--Results-jumpers.gif" /></figure> |
| </section> | | </section> |
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