Team:Lyon-INSA/notebook

From 2012.igem.org

(Difference between revisions)
 
(41 intermediate revisions not shown)
Line 19: Line 19:
$(document).ready(function(){
$(document).ready(function(){
 +
$("#lab").click();
$("#noteBookTextContent").tinyscrollbar();
$("#noteBookTextContent").tinyscrollbar();
Line 342: Line 343:
<body>
<body>
-
 
-
 
-
<div id="projectBar" class="menuBar">
 
-
    <div class="boutonMenu" onclick="window.location='menu';">Menu</div>
 
-
    <div id="ongletBar">
 
-
        <div class="boutonOnglet"  onclick="window.location='project';">Project</div>
 
-
        <div class="boutonOnglet"  onclick="window.location='modelling';">Modelling</div>
 
-
        <div class="boutonOnglet"  onclick="window.location='safety';">Safety</div>
 
-
        <div class="boutonOnglet BOClicked">Notebook</div>
 
-
        <div class="boutonOnglet" onclick="window.location='protocol';">Protocol</div>
 
-
        <div class="boutonOnglet"  onclick="window.location='datapage';">Data Page</div>
 
-
        <div class="boutonOnglet" onclick="window.location='Achievements';">Achievements</div>
 
-
    </div>
 
-
</div>
 
-
<div id="bandeau"></div>
 
<div id="xml" style="display:none;">
<div id="xml" style="display:none;">
-
<xml id='xmldata' style='display:none;'>
+
  <xml id='xmldata' style='display:none;'>
-
<?xml version="1.0" ?>
+
    <?xml version="1.0" encoding="ISO-8859-1"?>
<!-- Edited by XMLSpy -->
<!-- Edited by XMLSpy -->
<project>
<project>
Line 367: Line 353:
<titre>For all purposes</titre>
<titre>For all purposes</titre>
<date> Monday, July 2nd 2012</date>
<date> Monday, July 2nd 2012</date>
-
<description>Liquid culture (5 mL LB media) of NM 522 cells and overnight incubation under agitation at 37°C for later transformation.</description>
+
<description>Liquid culture (5 mL LB medium) of NM 522 cells and overnight incubation under agitation at 37°C for later transformation.</description>
</jour>
</jour>
                 <jour nb="3">
                 <jour nb="3">
Line 396: Line 382:
4 liquid cultures (5mL LB medium + 50 µL chloramphenicol) and 4 streaked chloramphenicol plates were made using isolated colonies likely to contain transformed bacteria.<br/><br/>
4 liquid cultures (5mL LB medium + 50 µL chloramphenicol) and 4 streaked chloramphenicol plates were made using isolated colonies likely to contain transformed bacteria.<br/><br/>
-
The antibiotic resistance to Ampicillin, Tetracyclin, Chloramphenicol and Kanamycin of the following strains was tested : BS 168, BS 168 MCherry, BS 168 GFP, BS 168 Lysostaphin, <i>Staphylococcus epidermidis</i>, BS Abrb.
+
The antibiotic resistance to Ampicillin, Tetracyclin, Chloramphenicol and Kanamycin of the following strains was tested : BS 168, BS 168 MCherry, BS 168 GFP, BS 168 Lysostaphin, <i>Staphylococcus epidermidis</i>, BS <i>abrB</i>.
</description>
</description>
</jour>
</jour>
Line 408: Line 394:
     <li>Bs 168 M cherry : no resistance;</li>
     <li>Bs 168 M cherry : no resistance;</li>
     <li>Bs 168 GFP : no resistance;</li>
     <li>Bs 168 GFP : no resistance;</li>
-
     <li>Bs abrB : Cm resistant;</li>
+
     <li>Bs <i>abrB</i> : Cm resistant;</li>
     <li>Bs 168 lysostaphin PWG100 : no resistance;</li>
     <li>Bs 168 lysostaphin PWG100 : no resistance;</li>
     <li><i>S. epidermidis</i> : Tet resistant.</li>
     <li><i>S. epidermidis</i> : Tet resistant.</li>
Line 435: Line 421:
<ul>
<ul>
     <li>pBBa_I742123 was put in storage (under the reference pBK1).</li>
     <li>pBBa_I742123 was put in storage (under the reference pBK1).</li>
-
     <li>A liquid culture of NM522/pBK1 transformed cells was made so we could extract more plasmid DNA (50 mL LB media + 500 µL Chloramphenicol + 500 µL liquid culture of transformed bacteria ).</li>
+
     <li>A liquid culture of NM522/pBK1 transformed cells was made so we could extract more plasmid DNA (50 mL LB medium + 500 µL Chloramphenicol + 500 µL liquid culture of transformed bacteria ).</li>
-
     <li>The 3 genes coding for lysostaphin, dispersin and lacI repressor in pUC57 Ampicillin resistant plasmids were delivered.</li>
+
     <li>The 3 genes coding for lysostaphin, dispersin and <i>lacI</i> repressor in pUC57 Ampicillin resistant plasmids were delivered.</li>
-
     <li>Transformation of NM522 strain with pUC57-Lysostaphin, pUC57-Dispersin and pUC57-sfp.</li>
+
     <li>Transformation of NM522 strain with pUC57-Lysostaphin, pUC57-Dispersin and pUC57-<i>sfp</i>.</li>
     <li>200 µL of each transformed strains were spread on LB + Ampicillin plates.</li>
     <li>200 µL of each transformed strains were spread on LB + Ampicillin plates.</li>
-
     <li>Liquid cultures of the following strains were made : Bs 168 in LB, Bs abrB in LB + Chloramphenicol, <i>S. epidermidis</i> in LB + Tetracyclin</li></ul>
+
     <li>Liquid cultures of the following strains were made : Bs 168 in LB, Bs <i>abrB</i> in LB + Chloramphenicol, <i>S. epidermidis</i> in LB + Tetracyclin</li></ul>
</description>
</description>
Line 452: Line 438:
         <li>Lysostaphin in pUC57 Amp resistant (pBK2);</li>
         <li>Lysostaphin in pUC57 Amp resistant (pBK2);</li>
         <li>Dispersin in pUC57 Amp resistant (pBK3);</li>
         <li>Dispersin in pUC57 Amp resistant (pBK3);</li>
-
         <li>Surfactin part 2 (RBS-lacI-terminator) in pUC57 Amp resistant (pBK4).</li>
+
         <li>Surfactin part 2 (RBS-<i>lacI</i>-terminator) in pUC57 Amp resistant (pBK4).</li>
</ul>
</ul>
         <li> and the following strains (in LB broth supplemented with required antibiotic) :</li>
         <li> and the following strains (in LB broth supplemented with required antibiotic) :</li>
<ul>   
<ul>   
         <li><i>S. epidermidis</i> = BK1 (Tet<sup>R</sup>);</li>
         <li><i>S. epidermidis</i> = BK1 (Tet<sup>R</sup>);</li>
-
         <li>Bs abrB = BK2 (Cm<sup>R</sup>);</li>
+
         <li>Bs <i>abrB</i> = BK2 (Cm<sup>R</sup>);</li>
         <li>Bs 168 = BK3.</li>
         <li>Bs 168 = BK3.</li>
</ul>
</ul>
Line 485: Line 471:
       <li>Extraction of part BBa_B0010 (terminator) Ampicillin resistant from transformed NM522 strain. <i>(NB : the clones were pink which means that the part contains a RFP gene)</i></li>
       <li>Extraction of part BBa_B0010 (terminator) Ampicillin resistant from transformed NM522 strain. <i>(NB : the clones were pink which means that the part contains a RFP gene)</i></li>
       <li>Extraction of part BBa_K606040 (pLacI) from transformed NM522 strain.</li>
       <li>Extraction of part BBa_K606040 (pLacI) from transformed NM522 strain.</li>
-
       <li>Extraction of  pUC57-Lysostaphin/pUC57-Dispersin/pUC57-lacI from transformed NM522 strains.</li>
+
       <li>Extraction of  pUC57-Lysostaphin/pUC57-Dispersin/pUC57-<i>lacI</i> from transformed NM522 strains.</li>
       <li>Transformation of NM522 strain with the part BBa_0010 Ampicillin resistant. The observed phenotype does not correspond to the description found in the registry (the color of the colonies is pink). We decided to make another transformation with the same part, only this time the 2011 kit was used.</li>
       <li>Transformation of NM522 strain with the part BBa_0010 Ampicillin resistant. The observed phenotype does not correspond to the description found in the registry (the color of the colonies is pink). We decided to make another transformation with the same part, only this time the 2011 kit was used.</li>
</ul>
</ul>
Line 501: Line 487:
     <li>Extractions with a miniprep kit are made :
     <li>Extractions with a miniprep kit are made :
     <ul>
     <ul>
-
             <li>4 clones containing the pLac promoter (1,2,3,4);</li>
+
             <li>4 clones containing the P<sub>lac</sub> promoter (1,2,3,4);</li>
             <li>4 clones containing the <i>Bacillus subtilis</i> RBS (1,2,3,4);</li>
             <li>4 clones containing the <i>Bacillus subtilis</i> RBS (1,2,3,4);</li>
             <li>3 clones containing theTerminator (1,2,3);</li>
             <li>3 clones containing theTerminator (1,2,3);</li>
Line 521: Line 507:
     <li>The following strains are put in storage:
     <li>The following strains are put in storage:
     <ul>
     <ul>
-
             <li>NM522 containing lacI-pUC57;</li>
+
             <li>NM522 containing <i>lacI</i>-pUC57;</li>
-
             <li>NM522 containing rbs-pUC57;</li>
+
             <li>NM522 containing RBS-pUC57;</li>
             <li>NM522 containing dispersin-pUC57;</li>
             <li>NM522 containing dispersin-pUC57;</li>
     </ul>
     </ul>
Line 554: Line 540:
<ul>
<ul>
     <li>Long morning meeting to discuss results and to write some posters in a frenzied psychopath way in order to remember our tasks.</li>
     <li>Long morning meeting to discuss results and to write some posters in a frenzied psychopath way in order to remember our tasks.</li>
-
     <li>Ligation of promoter-rbs-GFP in plasmid.</li>
+
     <li>Ligation of promoter-RBS-<i>gfp</i> in plasmid.</li>
     <li>Genomic DNA extraction of <i>B. subtilis</i> 168: buffers preparation.</li>
     <li>Genomic DNA extraction of <i>B. subtilis</i> 168: buffers preparation.</li>
     <li>Failure of B0015 transformation.</li>
     <li>Failure of B0015 transformation.</li>
Line 562: Line 548:
<description>
<description>
<ul>
<ul>
-
       <li>Cloning of the constitutive promoter in front of the dispersin part (the gene coding for Dispersin) and RBS/GFP (of <i>E. coli</i>) using a 3A ligation followed by transformation of the ligation in the NM522 strain;</li>
+
       <li>Cloning of the constitutive promoter in front of the dispersin part (the gene coding for Dispersin) and RBS/<i>gfp</i> (of <i>E. coli</i>) using a 3A ligation followed by transformation of the ligation in the NM522 strain;</li>
       <li>Extraction of pUC57-lysostaphin. Gel electrophoresis showed a shaded DNA → RNase addition in the extraction kit buffer was forgotten.</li>
       <li>Extraction of pUC57-lysostaphin. Gel electrophoresis showed a shaded DNA → RNase addition in the extraction kit buffer was forgotten.</li>
</ul>
</ul>
</description>
</description>
-
<titre>Physiological tests : Testing the potential of S. epidermidis to form biofilms</titre>
+
<titre>Physiological tests : Testing the potential of S. epidermidis to form biofilms</titre>
<description>
<description>
<ul>
<ul>
Line 574: Line 560:
</description>
</description>
</jour>
</jour>
-
 
<jour nb="18">
<jour nb="18">
Line 583: Line 568:
     <li>Extraction and digestion (E & P) of Bs 168 strain GFP’s plasmid. Gel electrophoresis showed absence of non digested plasmid → extraction failure.</li>
     <li>Extraction and digestion (E & P) of Bs 168 strain GFP’s plasmid. Gel electrophoresis showed absence of non digested plasmid → extraction failure.</li>
     <li>Genomic DNA extraction of <i>B. subtilis</i> 168 (Kit Genomic DNA from tissue).</li>
     <li>Genomic DNA extraction of <i>B. subtilis</i> 168 (Kit Genomic DNA from tissue).</li>
-
     <li>Transformation of pBK5 in <i>B. subtilis</i> abrB failed.</li>
+
     <li>Transformation of pBK5 in <i>B. subtilis</i> <i>abrB</i> failed.</li>
</ul>
</ul>
</description>
</description>
Line 589: Line 574:
<description>
<description>
<ul>
<ul>
-
       <li>The transformation results of the 3A ligation ([dispersin+RBS/GFP+pSB1T3]) was unsuccessful, so it was repeated, this time with both a positive control (strain 39) and a negative one with NM522 culture ;</li>
+
       <li>The transformation results of the 3A ligation ([dispersin+RBS/<i>gfp</i>+pSB1T3]) was unsuccessful, so it was repeated, this time with both a positive control (strain 39) and a negative one with NM522 culture ;</li>
       <li>Addition of RNase to the miniprep from pUC57-lysostaphin clones. Gel electrophoresis : there is still a smear. However, the bands are as expected.</li>
       <li>Addition of RNase to the miniprep from pUC57-lysostaphin clones. Gel electrophoresis : there is still a smear. However, the bands are as expected.</li>
 +
</ul>
 +
</description>
 +
<titre>Physiological tests : Testing the potential of S. epidermidis to form biofilms</titre>
 +
<description>
 +
<ul>
 +
<li>The microtiter plate prepared the day before is analyzed. Each well is stained with crystal violet and subsequently OD<sub>600</sub> is measured in order to quantify the adherence of the strain. We can conclude that the concentration of glucose has no impact on the adherence of <i>S. epidermidis</i>.</li>
 +
<li>A microtiter plate is inoculated with 2mL of a suspension obtained from diluting the liquid culture 1:100  with TSB supplemented with different concentrations of glucose in order to test the best conditions for biofilm formation. The plate is incubated during 24 hours at 37ºC.</li>
</ul>
</ul>
</description>
</description>
Line 602: Line 594:
     <li>TSS tests are also made to be sure that all TSS solutions that we have are ok because some transformations did not work.</li>
     <li>TSS tests are also made to be sure that all TSS solutions that we have are ok because some transformations did not work.</li>
     <li>A 50µg/mL erythromycin solution is made in order to test the strains’ resistance;</li>
     <li>A 50µg/mL erythromycin solution is made in order to test the strains’ resistance;</li>
-
     <li>Transformation of yfp, gfp et cfp (from iGEM plates) in NM522;</li>
+
     <li>Transformation of <i>yfp</i>, <i>gfp</i> and <i>cfp</i> (from iGEM plates) in NM522;</li>
     <li>B0015 transformation in NM522.</li>
     <li>B0015 transformation in NM522.</li>
</ul>
</ul>
Line 609: Line 601:
<description>
<description>
<ul>
<ul>
-
       <li>The transformation of the 3A ligation ([dispersin+RBS/GFP+pSB1T3]) was successful, so 6 clones were tested on a plate containing LB broth supplemented with Tetracyclin.</li>
+
       <li>The transformation of the 3A ligation ([dispersin+RBS/<i>gfp</i>+pSB1T3]) was successful, so 6 clones were tested on a plate containing LB broth supplemented with Tetracyclin.</li>
-
       <li>The fluorescence test of the transformed bacteria containing [dispersin+RBS/GFP+pSB1T3]  confirm that the promoter is functional.</li>
+
       <li>The fluorescence test of the transformed bacteria containing [dispersin+RBS/<i>gfp</i>+pSB1T3]  confirm that the promoter is functional.</li>
       <li>Ligation of the promoter in a Cm resistant iGEM plasmid was made in order to send it to the registry.</li>
       <li>Ligation of the promoter in a Cm resistant iGEM plasmid was made in order to send it to the registry.</li>
</ul>
</ul>
 +
</description>
 +
<titre>Physiological tests : Testing the potential of S. epidermidis to form biofilms</titre>
 +
<description>
 +
The microtiter plate prepared the day before is analyzed. Each well is stained with crystal violet and subsequently OD<sub>600</sub> is measured in order to quantify the adherence of the strain. We can conclude that the concentration of glucose has no impact on the adherence of <i>S. epidermidis</i> and that the fact of cultivating the strain in broth or on solid medium has no impact on the biofilm's quality.
</description>
</description>
</jour>
</jour>
Line 623: Line 619:
     <li>Transformation results : all TSS work (except maybe 1 and 2 with a smaller yield) and promoter+pSB1C3 OK → 6 clones are isolated on a LB+Cm plate.</li>
     <li>Transformation results : all TSS work (except maybe 1 and 2 with a smaller yield) and promoter+pSB1C3 OK → 6 clones are isolated on a LB+Cm plate.</li>
     <li>Quantification and gel electrophoresis of <i>B. subtilis</i> genomic DNA.</li>
     <li>Quantification and gel electrophoresis of <i>B. subtilis</i> genomic DNA.</li>
-
     <li>Antibiotic testing of <i>B. thuringensis</i> 407 gfp strain and other strains in LB+Ery growth medium.</li>
+
     <li>Antibiotic testing of <i>B. thuringensis</i> 407 <i>gfp</i> strain and other strains in LB+Ery growth medium.</li>
     <li>Failure of transforming pBK5 in <i>B. subtilis</i> 168 with the same protocol as previously. New task : find a new protocol.</li>
     <li>Failure of transforming pBK5 in <i>B. subtilis</i> 168 with the same protocol as previously. New task : find a new protocol.</li>
</ul>
</ul>
Line 634: Line 630:
       <li>Ligation Lysostaphin in pSB1C3 and transformation.</li>
       <li>Ligation Lysostaphin in pSB1C3 and transformation.</li>
       <li>Isolation of 6 clones of the Terminator transformation.</li>
       <li>Isolation of 6 clones of the Terminator transformation.</li>
-
       <li>Transformation results of fluorescent genes : ok, except yfp. </li>
+
       <li>Transformation results of fluorescent genes : ok, except <i>yfp</i>. </li>
       <li>NM522 strain containing pUC57-lysostaphin is put in storage under the name of BK12.</li>
       <li>NM522 strain containing pUC57-lysostaphin is put in storage under the name of BK12.</li>
</ul>
</ul>
Line 647: Line 643:
     <li>Selected clones (NM522+pBK6) are red, meaning that P<sub>veg</sub> promoter and RBS from <i>B. subtilis</i> are recognized by <i>E. coli</i>’s ribosome. 4 clones are streaked in LB+Cm.</li>
     <li>Selected clones (NM522+pBK6) are red, meaning that P<sub>veg</sub> promoter and RBS from <i>B. subtilis</i> are recognized by <i>E. coli</i>’s ribosome. 4 clones are streaked in LB+Cm.</li>
     <li>LB+Ery and TSB+Tet Petri plates are made.</li>
     <li>LB+Ery and TSB+Tet Petri plates are made.</li>
-
     <li>YFP transformation was successful.</li>
+
     <li><i>yfp</i> transformation was successful.</li>
     <li>GFP and CFP plasmids’ extraction showed a failure in ligation.</li>
     <li>GFP and CFP plasmids’ extraction showed a failure in ligation.</li>
     <li><i>B. subtilis</i> 168 is put in storage (BK14) in TSB medium.</li>
     <li><i>B. subtilis</i> 168 is put in storage (BK14) in TSB medium.</li>
Line 673: Line 669:
                       <titre>Stick</titre>
                       <titre>Stick</titre>
<description>
<description>
-
PCR of <i>xylR</i>. Gel electrophoresis : the PCR didn’t work.
+
PCR of xylR. Gel electrophoresis : the PCR didn’t work.
</description>
</description>
</jour>
</jour>
Line 683: Line 679:
<ul>
<ul>
     <li>Plasmid extraction from Bacillus strain (BT407 GFP). We tested 2 methods in parallel. However, only the one using the extraction kit seems to work.</li>
     <li>Plasmid extraction from Bacillus strain (BT407 GFP). We tested 2 methods in parallel. However, only the one using the extraction kit seems to work.</li>
-
     <li>Extraction of gfp, cfp, yfp ;  test → OK : put in storage.</li>
+
     <li>Extraction of <i>gfp</i>, <i>cfp</i>, <i>yfp</i> ;  test → OK : put in storage.</li>
-
     <li>Extraction of the pHT315 GFP plasmid of <i>B. thuringiensis</i> 407 GFP to build a shuttle vector <i>B. subtilis</i> ↔ <i>E. coli</i>. Transformation in NM522 strain and selection on Ampicillin media : ok.</li>
+
     <li>Extraction of the pHT315 GFP plasmid of <i>B. thuringiensis</i> 407 GFP to build a shuttle vector <i>B. subtilis</i> ↔ <i>E. coli</i>. Transformation in NM522 strain and selection on LB+Ampicillin medium : ok.</li>
-
     <li><i>S. epidermidis</i> is put in storage in TSB media under the reference BK15.</li>
+
     <li><i>S. epidermidis</i> is put in storage in TSB medium under the reference BK15.</li>
</ul>
</ul>
</description>
</description>
Line 702: Line 698:
       <li>Extraction of the plasmidic DNA [Promoter in pSB1C3].</li>
       <li>Extraction of the plasmidic DNA [Promoter in pSB1C3].</li>
       <li>Extraction of pBK6 from the transformed strain.</li>
       <li>Extraction of pBK6 from the transformed strain.</li>
-
       <li>Extraction of the [Promoter+RBS+GFP] in pBK23 (Tet R) by miniprep and verification by electrophoresis after digestion by <i>Eco</i>RI and <i>Pst</i>I : gel ok. Congrats (pBK12) → 122,6 ng/µL.</li>
+
       <li>Extraction of the [Promoter+RBS+<i>gfp</i>] in pBK23 (Tet R) by miniprep and verification by electrophoresis after digestion by <i>Eco</i>RI and <i>Pst</i>I : gel ok. Congrats (pBK12) → 122,6 ng/µL.</li>
       <li>Extraction of the pBK6 plasmid (P<sub>veg</sub>+RBS+RFP in pSB1C3). The electrophoresis confirms the plasmid’s structure.</li>
       <li>Extraction of the pBK6 plasmid (P<sub>veg</sub>+RBS+RFP in pSB1C3). The electrophoresis confirms the plasmid’s structure.</li>
       <li>Liquid culture of Bs168 pWG100 overnight in order to do the first lysostaphin tests on plates.</li>
       <li>Liquid culture of Bs168 pWG100 overnight in order to do the first lysostaphin tests on plates.</li>
Line 709: Line 705:
                       <titre>Stick</titre>
                       <titre>Stick</titre>
<description>
<description>
-
New PCR of <i>xylR</i> with some modifications in the protocol : the PCR didn’t work.
+
New PCR of xylR with some modifications in the protocol : the PCR didn’t work.
</description>
</description>
Line 753: Line 749:
     <li>gDNA extraction with 2 different protocols : the first for <i>Bacillus subtilis</i> 168 and the second for Gram- bacteria with some modifications. The first protocol gives a better yield.</li>
     <li>gDNA extraction with 2 different protocols : the first for <i>Bacillus subtilis</i> 168 and the second for Gram- bacteria with some modifications. The first protocol gives a better yield.</li>
     <li>PCR of rRNA 16s on B.s. 168 to test if PCR works in the bacteria without being lysed : it works.</li>
     <li>PCR of rRNA 16s on B.s. 168 to test if PCR works in the bacteria without being lysed : it works.</li>
-
     <li>NM522 + gfp, cfp and yfp in storage.</li>
+
     <li>NM522 + <i>gfp</i>, <i>cfp</i> and <i>yfp</i> in storage.</li>
-
     <li>pHT 315 GFP put in storage under the reference pBK18.</li>
+
     <li>pHT315 GFP put in storage under the reference pBK18.</li>
     <li>NM522 + pHT315 GFP strain put in storage under the reference BK21.</li>
     <li>NM522 + pHT315 GFP strain put in storage under the reference BK21.</li>
</ul>
</ul>
Line 767: Line 763:
                       <titre>Surfactant</titre>
                       <titre>Surfactant</titre>
<description>
<description>
-
3A assembly rbs-gfp (pBK7-pBK14) in pSB1K3 = L1. Transformation of L1 in NM522.
+
3A assembly RBS-<i>gfp</i> (pBK7-pBK14) in pSB1K3 = L1. Transformation of L1 in NM522.
</description>
</description>
</jour>
</jour>
Line 775: Line 771:
                         <titre>For all purposes</titre>
                         <titre>For all purposes</titre>
<description>
<description>
-
Extraction of transformed clones (NM522/pHT304 et NM522/pHT315). The electrophoresis showed that the plasmids had approximately 7kb  and the restriction sites <i>Xba</i>I, <i>Eco</i>RI and <i>Pst</i>I as expected. However, there is a <i>Spe</i>I site which had not been mapped.
+
Extraction of transformed clones (NM522/pHT304 and NM522/pHT315). The electrophoresis showed that the plasmids had approximately 7kb  and the restriction sites <i>Xba</i>I, <i>Eco</i>RI and <i>Pst</i>I as expected. However, there is a <i>Spe</i>I site which had not been mapped.
</description>
</description>
                         <titre>Kill</titre>
                         <titre>Kill</titre>
Line 789: Line 785:
<description>
<description>
<ul>
<ul>
-
       <li><i>sfp</i> (surfactin part 1) and <i>abrB</i> put in storage : pBK16 et pBK17.</li>
+
       <li><i>sfp</i> (surfactin part 1) and <i>abrB</i> put in storage : pBK16 and pBK17.</li>
       <li>Failure of transformation of L1 in NM522.</li>
       <li>Failure of transformation of L1 in NM522.</li>
-
       <li>3A assembly of RBS-CFP (pBK7-pBK13) in pSB1C3 = L2. (!! the part2 construction already has a terminator)</li>
+
       <li>3A assembly of RBS-<i>cfp</i> (pBK7-pBK13) in pSB1C3 = L2. (!! the part2 construction already has a terminator)</li>
-
       <li>3A assembly of sfp-part2(lacI)-terminator (pBK4-pBK10) in pSB1C3 = IV.</li>
+
       <li>3A assembly of <i>sfp</i>-part2(<i>lacI</i>)-terminator (pBK4-pBK10) in pSB1C3 = IV.</li>
</ul>
</ul>
</description>
</description>
Line 824: Line 820:
<description>
<description>
<ul>
<ul>
-
       <li>Transformation of L1, L2 et IV in NM522.</li>
+
       <li>Transformation of L1, L2 and IV in NM522.</li>
-
       <li>Transformation of sfp and abrB in NM522.</li>
+
       <li>Transformation of <i>sfp</i> and <i>abrB</i> in NM522.</li>
</ul>
</ul>
</description>
</description>
Line 843: Line 839:
<description>
<description>
<ul>
<ul>
-
       <li>Given the fact that the previous transformation didn’t work, we made another transformation of NM522 strain with the <i>abrB</i> and <i>sfp</i> parts.</li>
+
       <li>Given the fact that the previous transformation didn’t work, we made another transformation of NM522 strain with the <i>abrB</i> and <i><i>sfp</i></i> parts.</li>
       <li>Results of the transformations of L1, L2 and IV : ok. Selection of some clones in order to do minipreps.</li>
       <li>Results of the transformations of L1, L2 and IV : ok. Selection of some clones in order to do minipreps.</li>
</ul>
</ul>
Line 881: Line 877:
<ul>
<ul>
       <li>The strain NM522/pBK6 was put in storage under the reference BK22.</li>
       <li>The strain NM522/pBK6 was put in storage under the reference BK22.</li>
-
       <li>Transformations of the NM522 strain with the ordered constructions (sfp and abrB in pUC57 AmpR). The transformation was unsuccessful, so we did it again.</li>
+
       <li>Transformations of the NM522 strain with the ordered constructions (<i>sfp</i> and <i>abrB</i> in pUC57 AmpR). The transformation was unsuccessful, so we did it again.</li>
-
       <li>Quantification of sfp and abrB constructions provided by Genecust using the Nanodrop.</li>
+
       <li>Quantification of <i>sfp</i> and <i>abrB</i> constructions provided by Genecust using the Nanodrop.</li>
       <li>Miniprep of the L1, L2 and IV ligations : it didn’t work.</li>
       <li>Miniprep of the L1, L2 and IV ligations : it didn’t work.</li>
</ul>
</ul>
Line 914: Line 910:
<description>
<description>
<ul>
<ul>
-
       <li>Miniprep of 5 clones of the transformed NM522 strain with RBS-<i>xylR</i> and 2 clones of the NM522 transformed with the <i>abrB</i> construction. Given the fact that the NM522 strain used for the transformations was contaminated, the electrophoresis showed unexpected results.</li>
+
       <li>Miniprep of 5 clones of the transformed NM522 strain with RBS-xylR and 2 clones of the NM522 transformed with the <i>abrB</i> construction. Given the fact that the NM522 strain used for the transformations was contaminated, the electrophoresis showed unexpected results.</li>
       <li>New ligation of RBS and <i>xylR</i> in pSB1A3 and transformation in NM522 strain.</li>
       <li>New ligation of RBS and <i>xylR</i> in pSB1A3 and transformation in NM522 strain.</li>
</ul>
</ul>
Line 951: Line 947:
<description>
<description>
<ul>
<ul>
-
       <li>Ligation (3A protocol) of pBK7, pBK13 and iGEM backbone pSB1K3 (=RBS+CFP+pSB1K3).</li>
+
       <li>Ligation (3A protocol) of pBK7, pBK13 and iGEM backbone pSB1K3 (=RBS+<i>cfp</i>+pSB1K3).</li>
-
       <li>Ligation (3A protocol) of pBK7, pBK14 and iGEM backbone pSB1K3 (=RBS+GFP+pSB1K3).</li>
+
       <li>Ligation (3A protocol) of pBK7, pBK14 and iGEM backbone pSB1K3 (=RBS+<i>gfp</i>+pSB1K3).</li>
       <li>Because of the difficulties to transform the bacteria with the plasmids containing <i>sfp</i> and <i>abrB</i>, we decided to do an electrophoresis directly on the constructions sent by Genecust. Result : the genes were not inserted in a pUC57 plasmid, although they should have been cloned.</li>
       <li>Because of the difficulties to transform the bacteria with the plasmids containing <i>sfp</i> and <i>abrB</i>, we decided to do an electrophoresis directly on the constructions sent by Genecust. Result : the genes were not inserted in a pUC57 plasmid, although they should have been cloned.</li>
       <li>Ligation of <i>abrB</i> and <i>sfp</i> in pSB1K3 and transformation in NM522.</li>
       <li>Ligation of <i>abrB</i> and <i>sfp</i> in pSB1K3 and transformation in NM522.</li>
Line 997: Line 993:
                       <titre>Surfactant</titre>
                       <titre>Surfactant</titre>
<description>
<description>
-
Plasmid extractions from 3 clones NM522/abrB and 5 clones NM522/sfp. The electrophoresis of the digested plasmids with EcoRI and PstI confirmed the presence of <i>sfp</i> construction (at 800 bp) and <i>abrB</i> construction  (at 500 bp).
+
Plasmid extractions from 3 clones NM522/<i>abrB</i> and 5 clones NM522/sfp. The electrophoresis of the digested plasmids with EcoRI and PstI confirmed the presence of <i>sfp</i> construction (at 800 bp) and <i>abrB</i> construction  (at 500 bp).
</description>
</description>
                       <titre>Stick</titre>
                       <titre>Stick</titre>
Line 1,033: Line 1,029:
<li>Transformation of the following ligations, in NM522 strain :</li>
<li>Transformation of the following ligations, in NM522 strain :</li>
       <ul>
       <ul>
-
             <li>pBK7+pBK13+pSB1K3 (RBS+CFP in Kanamycin resistant backbone);</li>
+
             <li>pBK7+pBK13+pSB1K3 (RBS+<i>cfp</i> in Kanamycin resistant backbone);</li>
-
             <li>pBK7+pBK14+pSB1K3 (RBS+GFP in Kanamycin resistant backbone).</li>
+
             <li>pBK7+pBK14+pSB1K3 (RBS+<i>gfp</i> in Kanamycin resistant backbone).</li>
       </ul>
       </ul>
-
<li>PCR of RBS-abrB and P<sub>xyl</sub> and purification of these PCR products.</li>
+
<li>PCR of RBS-<i>abrB</i> and P<sub>xyl</sub> and purification of these PCR products.</li>
</ul>
</ul>
</description>
</description>
Line 1,043: Line 1,039:
<ul>
<ul>
       <li>Purification of the <i>xylR</i> gene.</li>
       <li>Purification of the <i>xylR</i> gene.</li>
-
       <li>Miniprep of RBS-<i>xylR</i> and electrophoresis test → the ligation failed again...</li>
+
       <li>Miniprep of RBS-xylR and electrophoresis test → the ligation failed again...</li>
</ul>
</ul>
</description>
</description>
Line 1,069: Line 1,065:
<description>
<description>
<ul>
<ul>
-
<li>3A ligation : [P<sub>xyl</sub>-RBS-sfp] + [RBS-abrB] + [psB1T3].</li>
+
<li>3A ligation : [P<sub>xyl</sub>-RBS-<i>sfp</i>] + [RBS-<i>abrB</i>] + [psB1T3].</li>
-
<li>Transformation of the ligation [P<sub>xyl</sub>-RBS-sfp] + [RBS-abrB] + pSB1T3 in NM522 strain and spreading LB+Tet plates.</li>
+
<li>Transformation of the ligation [P<sub>xyl</sub>-RBS-<i>sfp</i>] + [RBS-<i>abrB</i>] + pSB1T3 in NM522 strain and spreading LB+Tet plates.</li>
<li>Results of the transformation by pBK7+pBK13+pSB1K3 and pBK7+pBK14+pSB1K3 : Failure! The negative control has a few colonies : the LB+Kan plate was contaminated and the used LB medium too! The transformation is done again...</li>
<li>Results of the transformation by pBK7+pBK13+pSB1K3 and pBK7+pBK14+pSB1K3 : Failure! The negative control has a few colonies : the LB+Kan plate was contaminated and the used LB medium too! The transformation is done again...</li>
<li>Purification of P<sub>xyl</sub> produced by PCR.</li>
<li>Purification of P<sub>xyl</sub> produced by PCR.</li>
Line 1,082: Line 1,078:
<description>
<description>
<ul>
<ul>
-
<li>Result of the transformation of NM522 by pHT304 S et pHT315 S : 0 clone and 1 clone... this only clone is tested but the test is negative : the <i>Spe</i>I site is always here at 311 bp. The cultures of the transformation are concentrated and spread on LB plate : 0 clone for pHT304 S and 18 for pHT315 S but none of the clones is good. We must do the filling-in again...</li>
+
<li>Result of the transformation of NM522 by pHT304 S and pHT315 S : 0 clone and 1 clone... this only clone is tested but the test is negative : the <i>Spe</i>I site is always here at 311 bp. The cultures of the transformation are concentrated and spread on LB plate : 0 clone for pHT304 S and 18 for pHT315 S but none of the clones is good. We must do the filling-in again...</li>
<li>Transformation of the pSB1C3 + RFP and pSB1T3 + RFP plasmids extracts of the iGEM plates to use them as tool of cloning after extraction.</li>
<li>Transformation of the pSB1C3 + RFP and pSB1T3 + RFP plasmids extracts of the iGEM plates to use them as tool of cloning after extraction.</li>
</ul>
</ul>
Line 1,104: Line 1,100:
       <ul>
       <ul>
             <li>Transformations of NM522 by pBK7+pBK13+pSB1K3 and pBK7+pBK14+pSB1K3 : ok.</li>
             <li>Transformations of NM522 by pBK7+pBK13+pSB1K3 and pBK7+pBK14+pSB1K3 : ok.</li>
-
             <li>Transformation by sfp-abrB-pSB1T3 : the negative control isn’t good, the transformation is done again...</li>
+
             <li>Transformation by <i>sfp</i>-<i>abrB</i>-pSB1T3 : the negative control isn’t good, the transformation is done again...</li>
</ul>
</ul>
-
             <li>Miniprep of other clones transformed with the plasmid RBS + <i>xylR</i> : the electrophoresis shows that the ligation still isn’t good…</li>
+
             <li>Miniprep of other clones transformed with the plasmid RBS + xylR : the electrophoresis shows that the ligation still isn’t good…</li>
       </ul>
       </ul>
</description>
</description>
Line 1,134: Line 1,130:
<description>
<description>
<ul>
<ul>
-
<li>The transformation of NM522 strain by sfp-abrB didn’t work again : although the positive control contains many clones (plasmid A2) and the negative control contains nothing, the real transformation contains nothing either ! We decided to do the sfp-abrB ligation again...</li>
+
<li>The transformation of NM522 strain by <i>sfp</i>-<i>abrB</i> didn’t work again : although the positive control contains many clones (plasmid A2) and the negative control contains nothing, the real transformation contains nothing either ! We decided to do the <i>sfp</i>-<i>abrB</i> ligation again...</li>
<li>Plasmid extraction of 4 clones NM522 transformed by pBK7+pBK13+pSB1K3 and pBK7+pBK14+pSB1K3 : the electrophoresis of the digested plasmids showed that 3 out of 4 clones had the good fragment.</li>
<li>Plasmid extraction of 4 clones NM522 transformed by pBK7+pBK13+pSB1K3 and pBK7+pBK14+pSB1K3 : the electrophoresis of the digested plasmids showed that 3 out of 4 clones had the good fragment.</li>
<li><strong>PROBLEM : WE RAN OUT OF LIGASE!!</strong>
<li><strong>PROBLEM : WE RAN OUT OF LIGASE!!</strong>
Line 1,165: Line 1,161:
<ul>
<ul>
<li>Ligation of the <i>sfp</i> and <i>abrB</i> parts in an iGEM backbone.</li>
<li>Ligation of the <i>sfp</i> and <i>abrB</i> parts in an iGEM backbone.</li>
-
<li>The NM522 strain with abrB-pSB1K3 was put in storage under the reference BK25.</li>
+
<li>The NM522 strain with <i>abrB</i>-pSB1K3 was put in storage under the reference BK25.</li>
-
<li>The NM522 strain with sfp-pSB1K3 was put in storage under the reference BK26.</li>
+
<li>The NM522 strain with <i>sfp</i>-pSB1K3 was put in storage under the reference BK26.</li>
</ul>
</ul>
</description>
</description>
Line 1,205: Line 1,201:
                       <titre>Surfactant</titre>
                       <titre>Surfactant</titre>
<description>
<description>
-
Transformation of the ligation [sfp + abrB + pSB1A3] in the NM522 strain.
+
Transformation of the ligation [<i>sfp</i> + <i>abrB</i> + pSB1A3] in the NM522 strain.
</description>
</description>
                       </jour>
                       </jour>
Line 1,224: Line 1,220:
                       <titre>Surfactant</titre>
                       <titre>Surfactant</titre>
<description>
<description>
-
The transformation of the ligation [sfp+abrB+pSB1A3] was successful, so 4 clones were put in liquid culture in order to be tested.
+
The transformation of the ligation [<i>sfp</i>+<i>abrB</i>+pSB1A3] was successful, so 4 clones were put in liquid culture in order to be tested.
</description>
</description>
                       <titre>Stick</titre>
                       <titre>Stick</titre>
<description>
<description>
-
Standard ligation between pBK7 (=RBS in pSB1C3) and <i>xylR</i> (obtained by PCR) with 1µL of insert for 5µL of vector. The ligation was transformed into the NM522 strain.  
+
Standard ligation between pBK7 (=RBS in pSB1C3) and xylR (obtained by PCR) with 1µL of insert for 5µL of vector. The ligation was transformed into the NM522 strain.  
</description>
</description>
                       </jour>
                       </jour>
Line 1,241: Line 1,237:
<description>
<description>
<ul>
<ul>
-
<li>The lysostaphin test didn’t work : Val&eacute;rie did the test again by applying first the supernatant on the paper disks before putting them on the plates, and by using TSM medium instead of LB broth.</li>
+
<li>The lysostaphin test didn’t work : Valérie did the test again by applying first the supernatant on the paper disks before putting them on the plates, and by using TSM medium instead of LB broth.</li>
<li>Transformation of the ligation [pSB1C3 + constitutive promoter] in NM 522 strain.</li>
<li>Transformation of the ligation [pSB1C3 + constitutive promoter] in NM 522 strain.</li>
</ul>
</ul>
Line 1,278: Line 1,274:
<description>
<description>
<ul>
<ul>
-
<li>Miniprep of 4 clones with the transformed 3A ligation (pBK22, gene abrB and pSB1A3 backbone). The electrophoresis did not turn out as expected for any of the 4 clones, so we decided to screen 6 others.</li>
+
<li>Miniprep of 4 clones with the transformed 3A ligation (pBK22, gene <i>abrB</i> and pSB1A3 backbone). The electrophoresis did not turn out as expected for any of the 4 clones, so we decided to screen 6 others.</li>
<li>Ligation of P<sub>xyl</sub> produced by PCR in an iGEM plasmid.</li>
<li>Ligation of P<sub>xyl</sub> produced by PCR in an iGEM plasmid.</li>
</ul>
</ul>
Line 1,322: Line 1,318:
<li>Launch of 8 [Promoter+Dispersin] cultures.</li>
<li>Launch of 8 [Promoter+Dispersin] cultures.</li>
<li>Results of the transformation of NM522 by [pSB1T3 + P<sub>xyl</sub>] : the plate with bacteria transformed by [pSB1T3 + P<sub>xyl</sub>] contains few clones and the controls are standard. 3 clones are selected to do liquid cultures and extract their DNA : no plasmid.</li>
<li>Results of the transformation of NM522 by [pSB1T3 + P<sub>xyl</sub>] : the plate with bacteria transformed by [pSB1T3 + P<sub>xyl</sub>] contains few clones and the controls are standard. 3 clones are selected to do liquid cultures and extract their DNA : no plasmid.</li>
-
<li>Results of the transformation of NM522 by [pSB1T3 + rbs-<i>abrB</i>] : no clones.</li>
+
<li>Results of the transformation of NM522 by [pSB1T3 + RBS-<i>abrB</i>] : no clones.</li>
</ul>
</ul>
</description>
</description>
Line 1,355: Line 1,351:
<ul>
<ul>
<li>Extraction of the plasmid containing the ligation [<i>sfp</i>+<i>abrB</i>+pSB1A3] from a liquid culture of transformed bacteria.</li>
<li>Extraction of the plasmid containing the ligation [<i>sfp</i>+<i>abrB</i>+pSB1A3] from a liquid culture of transformed bacteria.</li>
-
<li>Results of the second transformation of NM522 by pSB1T3 and rbs-<i>abrB</i> : no clones.</li>
+
<li>Results of the second transformation of NM522 by pSB1T3 and RBS-<i>abrB</i> : no clones.</li>
</ul>
</ul>
</description>
</description>
Line 1,380: Line 1,376:
       <ul>
       <ul>
             <li>[Lysostaphin + Dispersin] in pSB1C3;</li>
             <li>[Lysostaphin + Dispersin] in pSB1C3;</li>
-
             <li>[Lysostaphin + Dispersin] in the shuttle vector (vector for <i>E. coli</i> and <i>B. subtilis,/i>).</li>
+
             <li>[Lysostaphin + Dispersin] in the shuttle vector (vector for <i>E. coli</i> and <i>B. subtilis,</i>).</li>
       </ul>
       </ul>
</ul>
</ul>
Line 1,394: Line 1,390:
<li>Transformation of [pBK24-<i>xylR</i>] into NM522 strain.</li>
<li>Transformation of [pBK24-<i>xylR</i>] into NM522 strain.</li>
<li>Results of [pBK7-<i>xylR</i>] transformation : lots of clones and no clones in the negative control. 12 clones are put in liquid culture for extraction.</li>
<li>Results of [pBK7-<i>xylR</i>] transformation : lots of clones and no clones in the negative control. 12 clones are put in liquid culture for extraction.</li>
 +
</ul>
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
<ul>
 +
<li>Liquid culture of <i>B. subtilis</i> 168 in 5mL of LB broth.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> <i>abrB</i> in 5mL of LB broth.</li>
</ul>
</ul>
</description>
</description>
Line 1,428: Line 1,431:
<li>Extraction of pBK7-<i>xylR</i> from 12 clones, and then a gel electrophoresis is run: 2 clones seem interesting. We ran a second gel to verify these 2 clones, but it showed us that they were not good.</li>
<li>Extraction of pBK7-<i>xylR</i> from 12 clones, and then a gel electrophoresis is run: 2 clones seem interesting. We ran a second gel to verify these 2 clones, but it showed us that they were not good.</li>
</ul>
</ul>
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
A microtiter plate is inoculated with <i>B. subtilis</i> 168 and <i>B. subtilis</i> <i>abrB</i> in order to compare the adherence of each strain. (see Protocol 'Tests of Bacillus subtilis adherence in 24 wells plate').
</description>
</description>
                       </jour>
                       </jour>
Line 1,439: Line 1,446:
                       <titre>Surfactant</titre>
                       <titre>Surfactant</titre>
<description>
<description>
-
3A ligation of pBK4 (pUC57 containing the lacI gene) and pBK29 (pSB1A3 containing the sfp and abrB genes) in pBK24 (pSB1C3 containing a RFP gene). The cloned fragment was transformed in the NM522 strain.
+
3A ligation of pBK4 (pUC57 containing the <i>lacI</i> gene) and pBK29 (pSB1A3 containing the <i>sfp</i> and <i>abrB</i> genes) in pBK24 (pSB1C3 containing a RFP gene). The cloned fragment was transformed in the NM522 strain.
</description>
</description>
                       <titre>Stick</titre>
                       <titre>Stick</titre>
Line 1,447: Line 1,454:
<li>Extraction of pBK24-<i>xylR</i> from 7 clones. Gel electrophoresis is run → ONE CLONE IS GOOD!! Meaning that it’s the first time we manage to ligate <i>xylR</i> successfully.</li>
<li>Extraction of pBK24-<i>xylR</i> from 7 clones. Gel electrophoresis is run → ONE CLONE IS GOOD!! Meaning that it’s the first time we manage to ligate <i>xylR</i> successfully.</li>
</ul>
</ul>
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
The microtiter plate prepared the day before is analyzed. There is a significant difference between the adherence potential of the two strains. <i>B. subtilis</i> <i>abrB</i> strain forms thin layer biofilms while <i>B. subtilis</i> 168 doesn't form any specific kind of biofilms.
</description>
</description>
                       </jour>
                       </jour>
Line 1,541: Line 1,552:
<li>Miniprep of the two clones containing the <i>sfp</i> and <i>abrB</i> genes. The gel electrophoresis did not turn out as expected, probably because the bacteria used for inoculating the liquid cultures were contaminated or did not come from the same colony. We decided to transform the low purity plasmids into the NM522 strain.</li>
<li>Miniprep of the two clones containing the <i>sfp</i> and <i>abrB</i> genes. The gel electrophoresis did not turn out as expected, probably because the bacteria used for inoculating the liquid cultures were contaminated or did not come from the same colony. We decided to transform the low purity plasmids into the NM522 strain.</li>
<li>Given the fact that we were not very optimistic concerning the 3A ligation of pBK24, pBK4 and pBK29, we decided to do two more trials, this time using  two ligated genes (<i>sfp</i> and <i>abrB</i>) coming from clones other than the one containing pBK22. However, the miniprep of the bacteria which were supposed to contain the two plasmids was unsatisfying, so we decided to do the 3A ligation with the low purity plasmids, isolated with the classic protocol because we were running out of time and we were behind the schedule.</li>
<li>Given the fact that we were not very optimistic concerning the 3A ligation of pBK24, pBK4 and pBK29, we decided to do two more trials, this time using  two ligated genes (<i>sfp</i> and <i>abrB</i>) coming from clones other than the one containing pBK22. However, the miniprep of the bacteria which were supposed to contain the two plasmids was unsatisfying, so we decided to do the 3A ligation with the low purity plasmids, isolated with the classic protocol because we were running out of time and we were behind the schedule.</li>
-
<li>In parallel, we decided to do a standard ligation in order to transfer the lacI gene into a plasmid having an antibiotic resistance other than Ampicillin. This way, in case the 3A ligations fails, we would not be forced to do again a 3A ligation because the plasmids would have different antibiotic resistances.</li>
+
<li>In parallel, we decided to do a standard ligation in order to transfer the <i>lacI</i> gene into a plasmid having an antibiotic resistance other than Ampicillin. This way, in case the 3A ligations fails, we would not be forced to do again a 3A ligation because the plasmids would have different antibiotic resistances.</li>
</ul>
</ul>
</description>
</description>
Line 1,608: Line 1,619:
<ul>
<ul>
<li>Extraction of the good clone from the replica-printing. Then a electrophoresis gel is run : the blunt end ligation was successful.</li>
<li>Extraction of the good clone from the replica-printing. Then a electrophoresis gel is run : the blunt end ligation was successful.</li>
-
<li>The plasmid is digested by <i>Eco</i>RI, <i>Xba</i>I, <i>Spe</i>I and <i>Pst</i>I to find out if the problem comes from a bad site sequence. Result : the <i>Eco</i>RI restriction site is not good, therefore is not recognized by <i>Eco</i<RI enzyme.</li>
+
<li>The plasmid is digested by <i>Eco</i>RI, <i>Xba</i>I, <i>Spe</i>I and <i>Pst</i>I to find out if the problem comes from a bad site sequence. Result : the <i>Eco</i>RI restriction site is not good, therefore is not recognized by <i>Eco</i>RI enzyme.</li>
</ul>
</ul>
</description>
</description>
Line 1,620: Line 1,631:
<description>
<description>
<ul>
<ul>
-
<li>Digestion of Lysostaphin in the shuttle vector and dispersin in pUC57 and verification of digestion. Then the vector is treated with CALF protein and a ligation is made using different of insert concentration. Then the ligation is transformed with commercial cells (STLB&Eacute;) according to the  manufacturer protocol and another trial is made with higher concentration.</li>
+
<li>Digestion of Lysostaphin in the shuttle vector and dispersin in pUC57 and verification of digestion. Then the vector is treated with CALF protein and a ligation is made using different of insert concentration. Then the ligation is transformed with commercial cells (STLBÉ) according to the  manufacturer protocol and another trial is made with higher concentration.</li>
<li>Verification of midiprep : Midiprep of Lysostaphin in pSB1C3 is okay but not the one of Dispersin in pUC57.</li>
<li>Verification of midiprep : Midiprep of Lysostaphin in pSB1C3 is okay but not the one of Dispersin in pUC57.</li>
<li>Miniprep of 14 clones NM522 transformed with Lysostaphin in pBK26. The digestions and electrophoresis show that 7 clones are ok ! They are put in storage under the references pBK38 (1) to pBK38 (6).</li>
<li>Miniprep of 14 clones NM522 transformed with Lysostaphin in pBK26. The digestions and electrophoresis show that 7 clones are ok ! They are put in storage under the references pBK38 (1) to pBK38 (6).</li>
Line 1,631: Line 1,642:
<li>One of the 12 screened clones transformed with the ligation of pBK22 and pBK39 has the expected fragments. Unfortunately, the plasmid is mixed with another one. To separate the two plasmids we decided to transform 1 µL of the miniprep into <i>E. coli</i> NM522 strain.</li>
<li>One of the 12 screened clones transformed with the ligation of pBK22 and pBK39 has the expected fragments. Unfortunately, the plasmid is mixed with another one. To separate the two plasmids we decided to transform 1 µL of the miniprep into <i>E. coli</i> NM522 strain.</li>
<li>6 other clones with the transformed 3A ligation (done on August 29th) are screened.</li>
<li>6 other clones with the transformed 3A ligation (done on August 29th) are screened.</li>
-
<li>Standard ligation of the abrB gene and the plasmid containing lacI in pSB1C3 backbone (pBK37) and transformation. In parallel, another ligation is attempted : [pBK37 + pBK29].</li>
+
<li>Standard ligation of the <i>abrB</i> gene and the plasmid containing <i>lacI</i> in pSB1C3 backbone (pBK37) and transformation. In parallel, another ligation is attempted : [pBK37 + pBK29].</li>
</ul>
</ul>
</description>
</description>
Line 1,687: Line 1,698:
<li><i>abrB</i> gene obtained by PCR was cloned in pSB1T3 backbone.</li>
<li><i>abrB</i> gene obtained by PCR was cloned in pSB1T3 backbone.</li>
<li>6 clones transformed with the mixture of two plasmids are screened.</li>
<li>6 clones transformed with the mixture of two plasmids are screened.</li>
-
<li>Miniprep of 12 clones per transformed ligation : only one had the expected fragments (ligation of the lacI and abrB genes). The clone is put in storage under the reference pBK39.</li>
+
<li>Miniprep of 12 clones per transformed ligation : only one had the expected fragments (ligation of the <i>lacI</i> and <i>abrB</i> genes). The clone is put in storage under the reference pBK39.</li>
</ul>
</ul>
</description>
</description>
Line 1,706: Line 1,717:
<li>Standard ligations between :
<li>Standard ligations between :
       <ul>
       <ul>
-
             <li>P<sub>lac</sub> in pSB1C3 (pBK9) digested by <i>Spe</i>I and <i>Pst</i>I and [RBS-GFP] in pSB1T3 digested by <i>Xba</i>I and <i>Pst</i>I;</li>
+
             <li>P<sub>lac</sub> in pSB1C3 (pBK9) digested by <i>Spe</i>I and <i>Pst</i>I and [RBS-<i>gfp</i>] in pSB1T3 digested by <i>Xba</i>I and <i>Pst</i>I;</li>
-
             <li>P<sub>xyl</sub> (amplified by PCR) digested by <i>Spe</i>I and <i>Eco</i>RI and [RBS-GFP] in pSB1T3 digested by <i>Xba</i>I and <i>Eco</i>RI.</li>
+
             <li>P<sub>xyl</sub> (amplified by PCR) digested by <i>Spe</i>I and <i>Eco</i>RI and [RBS-<i>gfp</i>] in pSB1T3 digested by <i>Xba</i>I and <i>Eco</i>RI.</li>
     </ul>
     </ul>
These two ligation products are transformed in NM522 strain.</li>
These two ligation products are transformed in NM522 strain.</li>
Line 1,740: Line 1,751:
<description>
<description>
<ul>
<ul>
-
<li>Standard ligation of pBK22 (sfp gene) and pBK39 (abrB-lacI) and transformation into the <i>E. coli</i> NM522 strain.</li>
+
<li>Standard ligation of pBK22 (<i>sfp</i> gene) and pBK39 (<i>abrB</i>-<i>lacI</i>) and transformation into the <i>E. coli</i> NM522 strain.</li>
<li>A SDS-PAGE gel is run to analyze lysostaphin (in BK32 and BK35 strains) and dispersin (BK29 strain).</li>
<li>A SDS-PAGE gel is run to analyze lysostaphin (in BK32 and BK35 strains) and dispersin (BK29 strain).</li>
</ul>
</ul>
Line 1,758: Line 1,769:
<li>Transformation of Bs 168 : new trial ! To improve our protocol, we took periodic OD<sub>600</sub>600 measurements in order to stop the cell growth at the best stage (just between the exponential and the stationary phase). The Bs 168 strain is transformed by :
<li>Transformation of Bs 168 : new trial ! To improve our protocol, we took periodic OD<sub>600</sub>600 measurements in order to stop the cell growth at the best stage (just between the exponential and the stationary phase). The Bs 168 strain is transformed by :
       <ul>
       <ul>
-
             <li>pBK 25 (= modified shuttle vector pHT 304);</li>
+
             <li>pBK 25 (= modified shuttle vector pHT304);</li>
-
             <li>pBK 26 (= modified shuttle vector pHT 315);</li>
+
             <li>pBK 26 (= modified shuttle vector pHT315);</li>
-
             <li>pBK 28 (= Lysostaphin in the  modified shuttle vector pHT 304);</li>
+
             <li>pBK 28 (= Lysostaphin in the  modified shuttle vector pHT304);</li>
-
             <li>pBK 38 (= Lysostaphin in the modified shuttle vector pHT 315);</li>
+
             <li>pBK 38 (= Lysostaphin in the modified shuttle vector pHT315);</li>
             <li>Dispersin in pBK26.</li>
             <li>Dispersin in pBK26.</li>
       </ul>
       </ul>
Line 1,799: Line 1,810:
<description>
<description>
A new RBS-<i>xylR</i> PCR is run, now with different concentrations of genomic DNA and a different annealing temperature. The PCR was successful.
A new RBS-<i>xylR</i> PCR is run, now with different concentrations of genomic DNA and a different annealing temperature. The PCR was successful.
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
<ul>
 +
<li>Liquid culture of <i>S. epidermidis</i> is incubated without any agitation at 37ºC.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the dispersin gene.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the same plasmid as <i>B. subtilis</i> dispersin but without the dispersin gene.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the lysostaphin gene.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the same plasmid as <i>B. subtilis</i> lysostaphin but without the lysostaphin gene.</li>
 +
</ul>
</description>
</description>
                       </jour>
                       </jour>
Line 1,816: Line 1,837:
<description>
<description>
Ligation of P<sub>lac</sub>-RBS-<i>xylR</i> and then transformation in NM522.
Ligation of P<sub>lac</sub>-RBS-<i>xylR</i> and then transformation in NM522.
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
Each of the 24 wells of  two microtiter plates are inoculated with 2mL of a suspension obtained from diluting the liquid culture 100 times with TSB enriched with 1% glucose  The plate is incubated during 24 hours at 37ºC.
</description>
</description>
                       </jour>
                       </jour>
Line 1,844: Line 1,869:
<description>
<description>
The electrophoresis of the 16 digested plasmids extracted did not turn out as expected : all clones are in fact the initial plasmid, pBK39!
The electrophoresis of the 16 digested plasmids extracted did not turn out as expected : all clones are in fact the initial plasmid, pBK39!
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
The supernatant from the two microtiter plates are decanted. The wells of a third microtiter plate are filled with the supernatant of the liquid culture which is supposed to contain the dispersin. The supernatants are diluted in order to test different concentrations of the supernatants. The wells of a fourth microtiter plate are filled with the supernatant of the liquid culture which is supposed to contain the lysostaphin.
</description>
</description>
                       </jour>
                       </jour>
Line 1,876: Line 1,905:
<li>Results : kinetics decreases so there is a problem. But it can be explained by the fact that the promoters need to be activated by a sigma factor which is active in the exponential phase and 12h is not enough. So this experiment has to be done during 24h.</li>
<li>Results : kinetics decreases so there is a problem. But it can be explained by the fact that the promoters need to be activated by a sigma factor which is active in the exponential phase and 12h is not enough. So this experiment has to be done during 24h.</li>
</ul>
</ul>
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
The microtiter plates prepared the day before are analyzed. Each well is stained with crystal violet and subsequently OD<sub>600</sub> is measured in order to quantify the adherence of the strain. We can see that the biofilm is not adherent enough and it is destroyed no matter what kind of supernatant is tested. Unfortunately, we cannot say what the effect of the dispersin or lysostaphin is using this kind of test.
</description>
</description>
</jour>
</jour>
Line 1,905: Line 1,938:
<li>SDS-PAGE is done using pellets, to find a good concentration.</li>
<li>SDS-PAGE is done using pellets, to find a good concentration.</li>
</ul>
</ul>
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
Liquid culture of <i>S. epidermidis</i> is incubated without any agitation at 37ºC.
</description>
</description>
</jour>
</jour>
Line 1,930: Line 1,967:
<li>OD<sub>600</sub> test in tanks to test lysostaphin effect on a <i>S. epidermidis</i> culture with the new protocol. Strains used for the test are <i>Bacillus subtilis</i> strains which may produce lysostaphin. Supernatant is filtered and applied on the <i>S. epidermidis</i> culture. There is a problem with the results : the control is not good.</li>
<li>OD<sub>600</sub> test in tanks to test lysostaphin effect on a <i>S. epidermidis</i> culture with the new protocol. Strains used for the test are <i>Bacillus subtilis</i> strains which may produce lysostaphin. Supernatant is filtered and applied on the <i>S. epidermidis</i> culture. There is a problem with the results : the control is not good.</li>
<li>Miniprep of one clone containing dispersin in pBK26 is done. Gel electrophoresis showed that the clone was good. The plasmid is then put in storage (pBK41).</li>
<li>Miniprep of one clone containing dispersin in pBK26 is done. Gel electrophoresis showed that the clone was good. The plasmid is then put in storage (pBK41).</li>
 +
</ul>
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
<ul>
 +
<li>5 test tubes containing a lamella are inoculated with the culture prepared the day (<i>S. epidermidis</i>) before diluted 1:100 with TSB supplemented with 1% glucose.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the dispersin gene.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the same plasmid as <i>B. subtilis</i> dispersin but without the dispersin gene.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the lysostaphin gene.</li>
 +
<li>Liquid culture of <i>B. subtilis</i> containing the same plasmid as <i>B. subtilis</i> lysostaphin but without the lysostaphin gene.</li>
</ul>
</ul>
</description>
</description>
Line 1,958: Line 2,005:
<description>
<description>
OD<sub>600</sub> test in tanks to test dispersin effect on a <i>S. epidermidis</i> culture. Strains used for the test are <i>Bacillus subtilis</i> strains which may produce dispersin. Supernatant is filtered and applied on the <i>S. epidermidis</i> culture. Dispersin has no effect on <i>S. epidermidis</i> culture according to the results.
OD<sub>600</sub> test in tanks to test dispersin effect on a <i>S. epidermidis</i> culture. Strains used for the test are <i>Bacillus subtilis</i> strains which may produce dispersin. Supernatant is filtered and applied on the <i>S. epidermidis</i> culture. Dispersin has no effect on <i>S. epidermidis</i> culture according to the results.
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
<ul>
 +
<li>One of the tubes and lamella prepared the day before containing <i>S. epidermidis</i> cultures is quantified using crystal violet staining and OD<sub>600</sub> is measured. <i>S. epidermidis</i> cells are quite adherent on glass surfaces.</li>
 +
<li>The supernatant of the four other tubes are decanted and tubes are filled with the supernatants produced by the four liquid cultures of <i>B. subtilis</i> prepared the day before in order to test the effect of lysostaphin and dispersin.</li>
 +
</ul>
</description>
</description>
</jour>
</jour>
Line 1,980: Line 2,034:
<titre>Surfactant</titre>
<titre>Surfactant</titre>
<description>
<description>
-
Gel electrophoresis of the extracted plasmids shows that there are 5 possible plasmids containing the ligated insert (P<sub>xyl</sub>-sfp-abrB-lacI-terminator). The five plasmids are digested by EcoRV and the electrophoresis confirms that, this time, the plasmids have the expected fragments.
+
Gel electrophoresis of the extracted plasmids shows that there are 5 possible plasmids containing the ligated insert (P<sub>xyl</sub>-<i>sfp</i>-<i>abrB</i>-<i>lacI</i>-terminator). The five plasmids are digested by EcoRV and the electrophoresis confirms that, this time, the plasmids have the expected fragments.
 +
</description>
 +
<titre>Physiological tests</titre>
 +
<description>
 +
The four tubes and lamella prepared the day before are quantified using crystal violet staining and OD<sub>600</sub>is measured. The same result is obtained : <i>S. epidermidis</i> biofilms are not adherent enough and biofilms are destroyed when the growth medium is changed.
</description>
</description>
</jour>
</jour>
Line 1,986: Line 2,044:
<jour nb="15">
<jour nb="15">
<date>Saturday, September 15th 2012</date>
<date>Saturday, September 15th 2012</date>
 +
<titre>For all purposes</titre>
 +
<description>
 +
<i>Bacillus subtilis</i> transformation with the 2 shuttle vectors pBK35 and pBK36.
 +
</description>
 +
<titre>Kill</titre>
<titre>Kill</titre>
<description>
<description>
OD<sub>600</sub> test in 96 well plate to test impact of lysostaphin and dispersin on a culture of <i>S. epidermidis</i> (test during 12 hours).
OD<sub>600</sub> test in 96 well plate to test impact of lysostaphin and dispersin on a culture of <i>S. epidermidis</i> (test during 12 hours).
</description>
</description>
 +
<titre>Physiological tests : Mobility of B. subtilis</titre>
 +
<description>
 +
LB plates containing a 0.3% agarose gel are inoculated with 5 μL of a 5 hour liquid culture of <i>B. subtilis</i> containing the plasmids used in transformations.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
Transformation of the ligations between the plasmid pBK42 containing the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>arbB</i>-<i>lacI</i>] and the shuttle vectors pBK35 and pBK36 into the NM522 strain .
 +
</description>
 +
</jour>
</jour>
 +
 +
<jour nb="16">
 +
<date>Sunday, September 16th 2012</date>
 +
<titre>For all purposes</titre>
 +
<description>
 +
Screening of 12 clones per <i>Bacillus</i> transformation.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
Screening of 15 clones transformed with the ligation pBK42+pBK35 and pBK42+pBK36
 +
</description>
 +
 +
<titre>Physiological tests : Mobility of B. subtilis</titre>
 +
<description>
 +
The diameter of the disks formed by <i>B. subtilis</i> is measured. The fact of introducing the plasmids did not impact the swarming mobility of our bacteria.
 +
</description>
 +
</jour>
 +
 +
<jour nb="17">
 +
<date>Monday, September 17th 2012</date>
 +
 +
<titre>For all purposes</titre>
 +
<description>
 +
Erythromycin at different concentrations was spread on LB plates with in order to test the Erythromycin resistance of the <i>B. Subtilis</i> strain transformed with the shuttle vectors.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
Unfortunately the screened clones (containing the ligations pBK42+pBK35 and pBK42+pBK36) did not have the right plasmid. Another ligation of the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>arbB</i>-<i>lacI</i>] is attempted, this time after gel extraction and purification of the digested pBK42 plasmid with EcoRI and PstI. This way, the backbone is eliminated and the chances of ligating the construction instead of the plasmid are higher.
 +
</description>
 +
 +
</jour>
 +
 +
<jour nb="18">
 +
<date>Tuesday, September 18th 2012</date>
 +
titre>For all purposes</titre>
 +
<description>
 +
Multiple tubes containing LB medium supplemented with Erythromycin at different concentrations are inoculated with the <i>B. subtilis</i> strains containing the shuttle vectors pBK35 and pBK36 in order to test the antibiotic resistance. For the same purpose LB + Ery plates are spotted with the same cultures at different dilution ratios.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
30 clones containing the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>arbB</i>-<i>lacI</i>] in the shuttle vector are screened.
 +
</description>
 +
 +
 +
</jour>
 +
 +
<jour nb="19">
 +
<date>Wednesday, September 19th 2012</date>
 +
<titre>For all purposes</titre>
 +
<description>
 +
The strains that were supposed to contain the shuttle vectors did not grow, so we suspect that the clones are in fact mutants.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
Miniprep of the transformed clones with the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>arbB</i>-<i>lacI</i>]. The gel electrophoresis shows that only two of them have the expected fragments.
 +
</description>
 +
 +
 +
 +
 +
</jour>
 +
 +
<jour nb="20">
 +
<date>Thursday, September 20th 2012</date>
 +
 +
<titre>For all purposes</titre>
 +
<description>
 +
<i>Bacillus subtilis</i> transformation with the shuttle vectors pBK35 and pBK36.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
Transformation of <i>B. subtilis</i> 168 and <i>B. subtilis abrB</i> strains with the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>arbB</i>-<i>lacI</i>] in the pBK35 shuttle vector.
 +
</description>
 +
 +
 +
</jour>
 +
 +
<jour nb="21">
<jour nb="21">
Line 1,999: Line 2,149:
P<sub>lac</sub> = IPTG 0.5% and P<sub>xyl</sub> = xylose 0.5%.<br />
P<sub>lac</sub> = IPTG 0.5% and P<sub>xyl</sub> = xylose 0.5%.<br />
Moreover, a 24-hour-long kinetics is also made in a 96 well plate. The conditions are the same as the one done for 12h except that bacteria are inoculated in a 1/100 dilution (instead of 1/50).
Moreover, a 24-hour-long kinetics is also made in a 96 well plate. The conditions are the same as the one done for 12h except that bacteria are inoculated in a 1/100 dilution (instead of 1/50).
 +
</description>
 +
<titre>Kill</titre>
 +
<description>
 +
SDS-PAGE is done in order to detect Dispersin in <i>B. subtilis</i> and <i>E. coli</i>'s supernatants. The gels were not conclusive, and were not good due to an ammonium persulfate problem.
</description>
</description>
</jour>
</jour>
 +
 +
<jour nb="22">
 +
<date>Saturday, September 22th 2012</date>
 +
<titre>For all purposes</titre>
 +
<description>
 +
12 clones transformed with the shuttle vectors are screened.
 +
</description>
 +
 +
 +
<titre>Kill</titre>
 +
<description>
 +
A new SDS-PAGE is done for dispersin. A migration problem persists, due to ammonium persulfate.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
24 clones transformed with the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>abrB</i>-<i>lacI</i>] are screened.
 +
</description>
 +
</jour>
 +
 +
<jour nb="23">
 +
<date>Sunday, September 23th 2012</date>
 +
<titre>For all purposes</titre>
 +
<description>
 +
Multiple tubes containing  2 mL liquid LB medium are supplemented with Erythromycin at various concentrations in order to test the antibiotic resistance of the two shuttle vectors. Also, LB+Ery plates are spotted with liquid cultures with the <i>B. subtilis </i> strains containing the shuttle vectors.
 +
</description>
 +
 +
 +
<titre>Kill</titre>
 +
<description>
 +
A last SDS-PAGE is run. This time the problems were successfully solved. But the gels were not conclusive due to a low dispersin concentration.
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
6 of the 24 clones are put in liquid culture for further testing in LB medium supplemented with xylose at a concentration of 2%.
 +
</description>
 +
</jour>
 +
 +
<jour nb="24">
 +
<date>Monday, September 24th 2012</date>
 +
 +
<titre>For all purposes</titre>
 +
<description>
 +
Both strains grew in all tubes. However, there is a difference concerning OD<sub>600</sub> between the two strains. The test is repeated (with antibiotic concentrations ranging from 0 to 1.5 mg/mL) in order to make sure there is a notable difference between the two strains. </li>
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
<li> In order to characterize the construction [P<sub>xyl</sub>-<i>sfp</i>-<i>arbB</i>-<i>lacI</i>] two tests are made. To confirm the presence of <i>sfp</i> gene, we made emulsions with the filtered supernatant of the transformed strains and sunflower oil. Concerning <i>abrB</i>  gene, a biofilm formation test was made in a 24-well microplate in order to compare the transformed strain to the wild-type strain.
 +
</li>
 +
</description>
 +
</jour>
 +
<jour nb="25">
 +
<date>Tuesday, September 25th 2012</date>
 +
 +
<titre>For all purposes</titre>
 +
<description>
 +
The results of the antibiotic resistance in liquid culture show that the <i>B. subtilis</i> strain containing pBK35 is less resistant than the one containing pBK36.</li>
 +
</description>
 +
<titre>Surfactant</titre>
 +
<description>
 +
The emulsion test and the biofilm formation test confirm the presence of <i>sfp</i> and <i>abrB</i> genes;
 +
</description>
 +
</jour>
 +
</month>
</month>
 +
<month name="October" size="31">
 +
 +
<jour nb="10">
 +
                        <date>Wednesday, October 10th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
<ul>
 +
<li>Ligation of the part pBK14 containing the <i>gfp</i> gene with the part pBK7 (containing a <i>B. subtilis</i> RBS).</li>
 +
<li>Ligation of the part pBK13 containing the <i>rfp</i> gene with the part pBK7 (containing a <i>B. subtilis</i> RBS).</li>
 +
<li>Transformation of the NM522 <i>E. coli</i> strain with the two ligations.</li>
 +
</ul>
 +
</description>
 +
<titre>Stick</titre>
 +
<description>Ligation of the PCR product <i>xylR</i> gene with the part pBK9 (P<sub><i>lac</i></sub> gene)and NM522 transformation.
 +
</description>
 +
</jour>
 +
 +
<jour nb="11">
 +
<date>Thursday, October 11th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Screening of 15 clones per transformation (antibiotic resistance test).
 +
 +
</description>
 +
<titre>Stick</titre>
 +
<description>
 +
Inoculation of 5 mL of LB medium with chloramphenicol with 1 colony of <i>Bacillus subtilis</i> 168 <i>ΔabrB</i> and 5 mL of LB medium with 1 colony of <i>Bacillus subtilis</i> 168. Incubation overnight at 37°C. (This is for the 48h positive <i>Bacillus subtilis</i> biofilm test plate)
 +
</description>
 +
</jour>
 +
<jour nb="12">
 +
<date>Friday, October 12th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Liquid cultures are inoculated with colonies having the expected antibiotic phenotype.
 +
</br>
 +
To test the surfactant properties of the surfactin produced by the <i>B. subtilis</i> BK52 strain, a biofilm test was made in a 24-well plate. Liquid cultures are seeded with BK52 and BK49.
 +
 +
</description>
 +
<titre>Stick</titre>
 +
<description>
 +
<ul>
 +
<li>(24h plate)The same inoculation as previously is prepared.</li>
 +
<li>(48h plate)<i>Bacillus subtilis</i> 168 <i>ΔabrB</i> or <i>Bacillus subtilis</i> 168 are added in the 12 well plate with MgSO4  1mM and Glucose 0.1 %.</li>
 +
</ul>
 +
The plate is incubated at 37°C for 48h
 +
 +
(For both) Inoculation of 5 mL of LB medium with 1 colony of <i>E coli</i> (<i>ompR++</i> GFP, curlis overproduction). Incubation overnight at 37°C.
 +
</description>
 +
</jour>
 +
<jour nb="13">
 +
<date>Saturday, October 13th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Miniprep of the screened clones. Unfortunately, the gel electrophoresis was disappointing and the extracted plasmids did not contain the ligated genes.
 +
</br>
 +
A 24-well plate is incubated with filtered supernatant of the saturated cultures with BK52 and BK49 at room temperature for 24 hours.
 +
 +
 +
</description>
 +
<titre>Stick</titre>
 +
<description>
 +
(24h plate)<i>Bacillus subtilis</i> 168 <i>ΔabrB</i> or <i>Bacillus subtilis</i> 168 are added in a 12-well plate with MgSO4  1mM and Glucose 0.1 %.
 +
The plate is incubated at 37°C for 48h.
 +
</description>
 +
</jour>
 +
 +
<jour nb="14">
 +
<date>Sunday, October 14th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
The wells are carefully rinsed with M63 medium two times after having previously discarded the supernatant. Then, each well is inoculated with a saturated adherent <i>E. coli</i> strain diluted 100 times in LB medium diluted 2 times.</br>
 +
Moreover, another 24-well plate assay was made using the same supernatant, but this time the plate was incubated only 4 hours before <i>E. coli</i> inoculation.
 +
 +
</description>
 +
<titre>Stick</titre>
 +
<description>
 +
(For both) The supernatant is removed, wells are washed and LB is added.To see if <i>E coli</i> forms a biofilm over the <i>Bacillus subtilis</i> biofilm, the overnight culture of <i>E coli</i> is added into each well.
 +
Plates are incubated for 36h at 30°C.
 +
</description>
 +
</jour>
 +
 +
<jour nb="16">
 +
<date>Tuesday, October 16th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Unfortunately, the observation of the plates under confocal microscope is not possible, so the experiment must be repeated. The only difference is that this time 12-well plates  with glass lamellae are used so the observation of the biofilm would be possible.
 +
 +
</description>
 +
<titre>Stick</titre>
 +
<description>
 +
(For both) Now let's observe using the confocal microscope !
 +
Results : It works ! Our positive <i>Bacillus subtilis</i> biofilm inhibits the stick of other bacteria !
 +
</description>
 +
</jour>
 +
<jour nb="17">
 +
<date>Wednesday, October 17th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Liquid cultures were inoculated with the strains BK49 and BK52 and then incubated at 37C for 48 hours.
 +
</description>
 +
 +
</jour>
 +
 +
 +
<jour nb="19">
 +
<date>Saturday, October 19th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
The supernatant from the plate is discarded. Each well is inoculated with an <i>E. coli</i> saturated culture diluted 50 times in LB medium diluted 2 times.
 +
 +
 +
</description>
 +
 +
</jour>
 +
 +
<jour nb="20">
 +
<date>Sunday, October 20th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Ligation of pBK40 and pBK16 followed by transformation into the NM522 strain.
 +
 +
</description>
 +
 +
</jour>
 +
 +
<jour nb="21">
 +
<date>Monday, October 21st 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
The surfactin pre-treated glass lamellae are observed under the confocal microscope. The negative control has a thick biofilm whereas the treated lamella has a few isolated colonies.
 +
 +
</description>
 +
 +
</jour>
 +
 +
<jour nb="22">
 +
<date>Tuesday, October 22nd 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Screening of 12 clones.
 +
 +
</description>
 +
 +
</jour>
 +
 +
<jour nb="23">
 +
<date>Wednesday, October 23rd 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
Miniprep of the transformed clones. The gel electrophoresis confirmed the expected insert. (<i>abrB</i> gene in pSB1C3 backbone)
 +
 +
</description>
 +
 +
</jour>
 +
 +
<jour nb="24">
 +
<date>Tuesday, October 24th 2012</date>
 +
 +
<titre>Surfactant</titre>
 +
<description>
 +
The plasmids pBK42 and pBK46 were submitted to the Registry.
 +
 +
</description>
 +
 +
</jour>
 +
 +
</month>
</project>
</project>
Line 2,008: Line 2,404:
</div>
</div>
-
<div id="contentPage">
+
<div id="pageContent">
-
<br/>
+
 
 +
<!--[if IE]>
 +
    <center><span style="font-size:23px;text-decoration:blink;color:red;">Sorry !! Our notebook doesn't work on IE, please use another browser to enjoy it</span></center>
 +
<![endif]-->
<h1>The Notebook</h1>
<h1>The Notebook</h1>
<br/>
<br/>
Line 2,016: Line 2,415:
        <div class="month" id="August">August</div>
        <div class="month" id="August">August</div>
                         <div class="month" id="September">September</div>
                         <div class="month" id="September">September</div>
 +
                        <div class="month" id="October">October</div>
 +
</div>
</div>
<br/>
<br/>
Line 2,037: Line 2,438:
                    
                    
-
                   <div id="jourSuivant"><img style="" src="https://static.igem.org/mediawiki/igem.org/0/08/Suivant.gif" width="30px" height="30px"/><br/>Next day</div>
+
                   <div id="jourSuivant"><img style="float:right;" src="https://static.igem.org/mediawiki/igem.org/0/08/Suivant.gif" width="30px" height="30px"/><br/>Next day</div>
                   <div id="leDiapo">
                   <div id="leDiapo">
                   <div id="titreDiapo">Watch us in action !</div>
                   <div id="titreDiapo">Watch us in action !</div>
                   <div class="diapoContent" style="width:320px;height:240px;padding:14px"><object width="320" height="240"><param name="movie" value="http://pf.kizoa.com/sflite.swf?did=3106662&k=3963711"></param><param name="wmode" value="transparent"></param><param name="allowFullScreen" value="true"></param><embed src="http://pf.kizoa.com/sflite.swf?did=3106662&k=3963711" type="application/x-shockwave-flash" wmode="transparent" width="320" height="240" allowFullScreen="true"></embed></object><br /></div>
                   <div class="diapoContent" style="width:320px;height:240px;padding:14px"><object width="320" height="240"><param name="movie" value="http://pf.kizoa.com/sflite.swf?did=3106662&k=3963711"></param><param name="wmode" value="transparent"></param><param name="allowFullScreen" value="true"></param><embed src="http://pf.kizoa.com/sflite.swf?did=3106662&k=3963711" type="application/x-shockwave-flash" wmode="transparent" width="320" height="240" allowFullScreen="true"></embed></object><br /></div>
</div>
</div>
-
                </div>
+
</div>
</div>
</div>
 +
<h1>Our collections</h1>
 +
<div class="introduction contenuTexte" style="margin:20px;font-size:15px;">
 +
 +
<div class="unProto" onclick="window.open('https://static.igem.org/mediawiki/2012/8/89/Tableau_souches.pdf', 'Strains collection'); return false;">Strains collection</div>
 +
<div class="unProto" onclick="window.open('https://static.igem.org/mediawiki/2012/b/be/Tableaux_plasmide.pdf', 'Plasmids collection'); return false;">Plasmids collection</div>
 +
 +
</div>
</body>
</body>
</html>
</html>
{{Lyon-INSA/pub}}
{{Lyon-INSA/pub}}

Latest revision as of 00:15, 27 October 2012

The Notebook


July
August
September
October


Previous day

Next day
Watch us in action !

Our collections

Strains collection
Plasmids collection

Retrieved from "http://2012.igem.org/Team:Lyon-INSA/notebook"