Difference between revisions of "Team:York/Notebook"
Lizalexianu (Talk | contribs) |
Lizalexianu (Talk | contribs) |
||
(41 intermediate revisions by 3 users not shown) | |||
Line 4: | Line 4: | ||
<html> | <html> | ||
<style type="text/css"> | <style type="text/css"> | ||
− | + | ||
− | + | body{ | |
+ | padding-top: 0; | ||
+ | } | ||
ul { | ul { | ||
list-style: none; | list-style: none; | ||
Line 11: | Line 13: | ||
margin:0; | margin:0; | ||
} | } | ||
− | + | .border{ | |
− | .test{ | + | border: 5px solid; |
− | padding-left: 1em; | + | border-color: black; |
+ | } | ||
+ | .test{ | ||
+ | padding-left: 1em; | ||
text-indent: -.7em; | text-indent: -.7em; | ||
} | } | ||
Line 19: | Line 24: | ||
.test:before { | .test:before { | ||
content: "• "; | content: "• "; | ||
− | color: black; | + | color: black; |
} | } | ||
ul{font-family:garamond;} | ul{font-family:garamond;} | ||
Line 25: | Line 30: | ||
h2 | h2 | ||
{color:black;} | {color:black;} | ||
− | .h1 | + | .h1 |
{color:black;} | {color:black;} | ||
+ | |||
+ | .navbar li{ | ||
+ | font-family: 'Arial'; | ||
+ | color: black; | ||
+ | position:relative; | ||
+ | top : 3px; | ||
+ | font-size : 14px; | ||
+ | font-weight: bold; | ||
+ | vertical-align : middle; | ||
+ | padding : 0; | ||
+ | margin : 0; | ||
+ | } | ||
+ | |||
+ | .bigger { | ||
+ | width:100%; | ||
+ | height: auto; | ||
+ | } | ||
+ | |||
</style> | </style> | ||
Line 32: | Line 55: | ||
<body> | <body> | ||
<div class="col-md-1"></div> | <div class="col-md-1"></div> | ||
− | <div class="col-md-10"> | + | <div class="col-md-10 layer"> |
<!-- CONTENT GOES HERE :D --> | <!-- CONTENT GOES HERE :D --> | ||
<h1>Notebook</h1> | <h1>Notebook</h1> | ||
<p>The following is a weekly description of the experiments carried out each week. To see the protocols click <a href="https://2015.igem.org/Team:York/Protocols">here</a></p> | <p>The following is a weekly description of the experiments carried out each week. To see the protocols click <a href="https://2015.igem.org/Team:York/Protocols">here</a></p> | ||
+ | <p>(Click to enlarge images)</p> | ||
− | < | + | <div class="col-md-3"> |
− | <ul> | + | <div class="navbar"> |
− | <li> | + | <ul> |
− | <li> | + | <li style="display:block;">Click to view:</li> |
− | <li> | + | <li style="display:block;" onclick="toggleWeek('DryLab')">Dry Lab Work Period</li> |
− | <li | + | <li style="display:block;" onclick="toggleWeek('Week1')">Week 1</li> |
− | <li | + | <li style="display:block;" onclick="toggleWeek('Week2')">Week 2</li> |
− | <li> | + | <li style="display:block;" onclick="toggleWeek('Week3')">Week 3</li> |
− | <li | + | <li style="display:block;" onclick="toggleWeek('Week4')">Week 4</li> |
− | <li> | + | <li style="display:block;" onclick="toggleWeek('Week5')">Week 5</li> |
− | <li | + | <li style="display:block;" onclick="toggleWeek('Week6')">Week 6</li> |
− | < | + | <li style="display:block;" onclick="toggleWeek('Week7')">Week 7</li> |
− | <li> | + | <li style="display:block;" onclick="toggleWeek('Week8')">Week 8</li> |
− | <li | + | <li style="display:block;" onclick="toggleWeek('Week9')">Week 9</li> |
− | <li | + | <li style="display:block;" onclick="toggleWeek('Week10')">Week 10</li> |
− | + | <li style="display:block;" onclick="toggleWeek('Week11')">Week 11</li> | |
− | <li> | + | <li style="display:block;" onclick="toggleWeek('Week12')">Week 12</li> |
− | <li> | + | <li style="display:block;" onclick="toggleWeek('Week13')">Week 13</li> |
− | <li | + | </ul> |
− | </ul> | + | </div> |
+ | </div> | ||
− | < | + | <div class="col-md-7"> |
− | <ul> | + | <div class="DatePeriod" id="DryLab"> |
− | <li> | + | <h3>Dry Lab Work Period</h3> |
− | </ul> | + | <ul> |
+ | <li>28/01:Brief introductory meeting about the iGEM competition | ||
+ | <li>17/03:The official iGEM team to represent the University of York was formed! | ||
+ | <li>Daily dry lab research begins, primer and construct designs made and ordered.</li> | ||
+ | <li>05/05:<a href="http://www.nouse.co.uk/2015/05/05/money-saving-micro-organisms/">Article</a>published in Nouse (University newspaper) about the 2015 iGEM team. | ||
+ | <li>03/06:We were invited to Science and Technology Alumni Network discussion event (outreach) | ||
+ | <li>04/06:<a href="https://www.york.ac.uk/biology/news-events/other/igem2015/">Article</a>published on the University's central news about this years iGEM team. | ||
+ | <li>12/06:A meeting was held with Yorkshire Water to discuss water remediation processes in the Yorkshire region | ||
+ | <li>13/06:We were invited to a University of York Biology Alumni event | ||
+ | <li>15/06: | ||
+ | <ol> | ||
+ | <li>Some of us went to a round-table discussion about the impact of Santander at York as some of the team members won the International Connections Award by Santander.</li> | ||
+ | <li><a href="http://mindthehorizon.com/2015/06/15/igem-genetic-engineering-future/">Article</a>published on Mind the Horizon about University of York iGEM</li></ol></li> | ||
+ | <li>19/06: | ||
+ | <ol> | ||
+ | <li>Lab safety induction was carried out</li> | ||
+ | <li>We passed out pamphlets at the York Festival of Ideas to raise awareness about the iGEM competition and synthetic biology.</li></ol></li> | ||
+ | <li> 26&27/06: We participated in giving talks to prospective students about iGEM.</li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week | + | <div class="DatePeriod" id="Week1"> |
− | <ul> | + | <h3>Week 1 - June 23-27 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>24/07:Wet lab practice day- reviewed basic lab protocols- making LB, agar plates, competent cells, transformations, PCR </li> |
− | < | + | <li>23-27/07:Dry lab research continues</li> |
− | </ | + | </ul> |
+ | </div> | ||
− | <h3>Week | + | <div class="DatePeriod" id="Week2"> |
− | <ul> | + | <h3>Week 2 - June 29- July 3 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>01/07:Competent cells made</li> |
− | </ul> | + | <li>02/07:Plates were streaked with two isolates of each deletion wanted from the Keio collection [PPX, PPK, PstA, PstB, PstC, PstS and PhoE] These have been collected and put in the incubating (37°C) room.</li> |
+ | <img src="https://static.igem.org/mediawiki/2015/thumb/7/7e/KEIO_plates_york.jpg/800px-KEIO_plates_york.jpg" height="50%" width="50%" class="border"/> | ||
+ | <li>03/07:Competent cells were tested with iGEM transformation efficiency kit</li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week | + | <div class="DatePeriod" id="Week3"> |
− | <ul> | + | <h3>Week 3 - July 6-10 </h3> |
− | <li> | + | <ul> |
− | + | <li>07/07:More agar plates made, next set of competent cell procedure started</li> | |
− | <li> | + | <li>07/07:YUfund page done and submitted</li> |
− | + | </ul> | |
− | + | </div> | |
− | < | + | |
− | </ | + | |
− | <h3>Week | + | <div class="DatePeriod" id="Week4"> |
− | <ul> | + | <h3>Week 4 - July 13-17 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>14/07:Vistited Badger Hill Primary School and held a bacteria workshop for the students</li> |
− | <li> | + | <li>15/07:First day of demonstrations of cell transformations and aseptic technique to sixth formers</li> |
− | + | <li>16/07:Second day of demonstrations to sixth formers:analysing transformations and building bioreactors</li> | |
− | < | + | <Li>17/07:Analysing bioreactors with sixth formers</li> |
− | + | <li>17/07:Phosphate assay done to get a standard curve</li> | |
− | <li> | + | <li>17/07:First attempt at growth assay - had to be redone, as computer crashed and updated mid-run</li> |
− | + | </ul> | |
− | <li> | + | </div> |
− | + | ||
− | </ul> | + | |
− | <h3>Week | + | <div class="DatePeriod" id="Week5"> |
− | <ul> | + | <h3>Week 5 - July 20-24 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>20/07:Phosphate assay was started for KEIO collection - PPK, PPX, wildtype - no results</li> |
− | <li> | + | <li>20/07:Colony PCR on SmPstSCAB, EcPstSCAB and EcPhoE</li> |
− | <li> | + | <li>20/07:Next set of competent cells made </li> |
− | <li> | + | <li>22/07:X-Gal/IPTG Plates made </li> |
− | </ul> | + | <li>22/07:Digested pSB1C3 with EcoRI and DpnI, then used Gibson Assembly to insert our adapter genes in.</li> |
+ | <li>23/07:Visit to AgeUK LunchClub to explain about the GM</li> | ||
+ | <li>23/07:Glycerol stocks of <em>Sinorhizobium meliloti</em></li> | ||
+ | <li>23/07:Phosphate assay of PPK, PPX, wildtype again with formic acid. Samples were neutralised before plating. - no results </li> | ||
+ | <li>24/07:Ran gel electrophoresis of PCR from 22/07</li> | ||
+ | <li>24/07:Second attempt at growth assay - had to be redone due to poor cell growth, potentially caused by poor spreading of plates</li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week | + | <div class="DatePeriod" id="Week6"> |
− | <ul> | + | <h3>Week 6 - July 27-31 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>27/07:Phage contamination scare - total clean of the lab</li> |
− | <li> | + | <li>27/07:More BW25113 competent cells made</li> |
− | <li> | + | <li>27/07:Preparations for glassmilk procedure</li> |
− | <li> | + | <li>28/07:First day of outreaching event to Saint Helen's CHurch, York, to carry out strawberry extraction practical and briefly explain about the steps involved for GM </li> |
− | + | <li>29/07:Second (and the last day) of outreaching event to Saint Helen's Church, York, to carry out strawberry extraction practical and briefly explain about the steps involved for GM </li> | |
− | + | <li>30/07:After several repeats the phosphate assay team managed to get significant data</li> | |
− | <li> | + | <li>30/07:Phosphate assay on Keasling strains: pBC9, pBC29 and pKDM12.</li> |
− | <li> | + | </ul> |
− | < | + | </div> |
− | < | + | |
− | + | ||
− | <h3>Week | + | <div class="DatePeriod" id="Week7"> |
− | <ul> | + | <h3>Week 7 - August 3-7 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>03/08:Plasmid (pBC 29 Keasling collection )loss experiment initiated</li> |
− | <li> | + | <li>05/08:Q5 PCR of SmPst, EcPst, EcPhoE</li> |
− | <li> | + | <li>05/08:Transformation of gibson from 30/07</li> |
− | <li> | + | <li>05/08:Q5 Colony PCR of SmPstSCAB, EcPstSCAB, EcPhoESCAB</li> |
− | <li> | + | <li>05/08:PCR pf pBC9, pBC29</li> |
− | <li> | + | <li>06/08:Mini-prep of pKDM12 and KoPPK, nanodrop</li> |
− | <li> | + | <li>06/08:Third attempt at growth assay - did not test any Pst or PhoE genes, results ok</li> |
− | <li> | + | <li>06/08:Inoculated overnight cultures of ApPst, ApPPK (SK-12, BA-91, UW-1)</li> |
− | <li> | + | <li>06/08:Ran GoTaq Colony PCR of same colonies of ApPst, ApPPK (SK-12, BA-91, UW-1)</li> |
− | <li> | + | <li>06/08:Ran gel electrophoresis of colony PCR</li> |
− | <li> | + | <li>06/08:Inoculated overnight cultures of BW25113, pkDM12, KoPPK</li> |
− | <li> | + | <li>07/08:Fourth attempt at growth assay - exact repeat to verify results</li> |
− | + | <li>07/08:Mini-prep of overnight cultures of ApPst, ApPPK (SK-12, BA-91, UW-1)</li> | |
− | <li> | + | <li>07/08:Used Nanodrop machine to measure concentration of miniprep products</li> |
− | + | <li>07/08:Performed an analytical digest of purified plasmids [ApPst, ApPPK (SK-12, BA-91, UW-1)] with EcoR1 and Pst1</li> | |
− | <li> | + | </ul> |
− | < | + | </div> |
− | </ | + | |
− | <h3>Week | + | <div class="DatePeriod" id="Week8"> |
− | <ul> | + | <h3>Week 8 - August 10-14</h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>10/08:Transform competent cells with plasmid (?)</li> |
− | <li> | + | <li>10/08:Ran GoTaq colony PCR of ApPst, screened for correct product, ran gel</li> |
− | <li> | + | <li>10/08:Performed a gibson assembly of EcPhoE Q5 PCR product (from 05/08)</li> |
− | <li> | + | <li>10/08:Ran a gel of SmPst and EcPst Q5 products (from 05/08), then digested with Dpn1, nanodropped, PCR purified and performed a gibson assembly</li. |
− | <li> | + | <li>10/08:Ran an overhang-adding step-up PCR of KoPPK, pkDM12, pBC9, pBC29</li> |
− | <li> | + | <li>11/08:Ran a <em>Pseudomonas aeruginosa</em> colony PCR to amplify PaOprO and PaOprP</li> |
− | <li> | + | <li>11/08:Ran a GoTaq colony PCR of all KEIO collection genes used (growth assay team), ran gels to verify that knockouts were present</li> |
− | <li> | + | <li>11/08:Glassmilk was made</li> |
− | <li> | + | <li>11/08:NMR test ran on BW25113</li> |
− | <li> | + | <li>12/08:Another phosphate assay run- using more formic acid, not neutralised this time. </li> |
− | <li> | + | <li>12/08:Digested lacZ pSB1C3 with EcoR1, ran gel, and performed gel extraction and purification protocols</li> |
− | <li> | + | <li>12/08:Fifth attempt at growth assay - new plate design with increased phosphate levels</li> |
− | <li> | + | <li>13/08:Digest pAdapt with Sma1</li> |
− | </ul> | + | <li>13/08:Ran Gibson assembly of EcPstSCAB, SmPstSCAB, KoPPK, pKDM12, EcPPX, EcPPK "colony 1 and 2", EcPhoE</li> |
+ | <li>13/08:Transformed BW2115 with gibson products and plated on agar.</li> | ||
+ | <li>14/08:Ran GoTaq PCR of colonies from Gibson plates and performed gel electrophoresis with PCR products.</li> | ||
+ | <li>14/08:Ran another GoTaq colony PCR of all KEIO collection genes used(growth assay team), to verify the knockouts that didn't work the first time around</li> | ||
+ | <li>14/08:Same phosphate assay as on the 12th but neutralised with 1M sodium hydroxide - did not work</li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week | + | <div class="DatePeriod" id="Week9"> |
− | <ul> | + | <h3>Week 9 - August 17-21 </h3> |
− | <li> | + | <ul> |
− | <li> | + | <li>17/08:Make liquid cultures of colonies that were verified with the gel on the 14th(EcPPX, EcPPK, pKDM12) </li> |
− | <li> | + | <li>17/08:Attempt colony PCR of different colonies for gibsons that did not work (EcPst, KoPPK, SmPst, EcPhoE)</li> |
− | <li> | + | <li>17/08:PCR amplified the digest of lacZ pSB1C3 (from 12/08) to make sure that no product is in the plasmid</li> |
− | <li> | + | <li>17/08:Ran gel of PaOprO/PaOprP PCR attempt #1 - no positive results, even control failed</li> |
− | <li> | + | <li>17/08:Glassmilk was used to isolate PolyP during yet another phosphate assay - this also did not work.</li> |
− | <li> | + | <li>18/08:New phosphate assay was run on PPK, PPX and BW2115 with formic acid, this time neutralised with 6M sodium hydroxide.</li> |
− | <li> | + | <li>19/08:Growth median assay on all of KEIO collection for phosphate assay purposes</li> |
− | <li> | + | <li>19/08:<em>Pseudomonas aeruginosa</em> PCR attempt #2 - used more colony and made colony dilution. No positive results. Control failed.</li> |
− | < | + | <li>20/08:Prepared a 3 hour and a 12 hour growth median assay. 3 hour test failed, and although the 12 hour test was completed, no results were conclusive.</li> |
− | < | + | <li>20/08:<em>Pseudomonas aeruginosa</em> PCR attempt #3 - changed extension time from 30 to 40 seconds. No positive results. Control failed.</li> |
− | < | + | <li>20/08:Sixth attempt at growth assay - only tested PstC and PstA to see which one had an increased growth phenotype</li> |
− | </ul> | + | <li>20/08:<em>Pseudomonas aeruginosa</em> PCR attempt #4 - used 3 differnet polymerases- Taq, Q5, Phusion. Correct bands visible only with Taq.</li> |
+ | <li>20/08:Gibson of pAdapt digested with Sma1 and ApPst 1 and 2</li> | ||
+ | <li>21/08:12 hour growth median assay ran - absorbances were too high, a precipitate formed </li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | <div class="DatePeriod" id="Week10"> | ||
+ | <h3>Week 10 - August 24-28 </h3> | ||
+ | <ul> | ||
+ | <li>23/08:Inoculate liquid cultures of EcPPX, EcPPK, pKDM12, KoPPK</li> | ||
+ | <li>23/08:Dephosphorylate lacZ #1,2,3 with Antarctic Phosphatase</li> | ||
+ | <li>24/08:Run double digest of the gibson assembled plasmids (EcPPX, EcPPK, pKDM12, KoPPK) with Xba1 and Xba1 + Spe1</li> | ||
+ | <li>25/08:Nanodrop lacZ #1,2,3 and transform BW2115 with lacZ #1 plasmid, plate on X-Gal/IPTG agar for blue-white screening</li> | ||
+ | <li>26/08:GoTaq PCR screen of EcPst, EcPhoE, SmPst, ApPst</li> | ||
+ | <img src="https://static.igem.org/mediawiki/2015/thumb/d/d2/Proof_of_smpst.JPG/667px-Proof_of_smpst.JPG" height="25%" width="25%"/> | ||
+ | <li>26/08:<em>Pseudomonas aeruginosa</em> PCR attempt #5 - new Phusion polymerase and buffer used- still no positive results. Control failed.</li> | ||
+ | <li>26/08:Formic acid phosphate assay ran on PPK, PPX and BW25113. </li> | ||
+ | <li>26/08:Double digest of EcPPK, EcPPx, KoPPK, pKDM12 with Xba1 and Spe1, ran gel electrophoresis</li> | ||
+ | <li>27/08:<em>Pseudomonas aeruginosa</em> PCR attempt #6 - changed extension time to 35 seconds, raised annealing temperature from 60 to 65 degrees- still no positive results. Control failed.</li> | ||
+ | <li>27/08:Competent cells made for phosphate assay</li> | ||
+ | <li>27/08:Transformed BW25113 lacZ #1 cells with EcPPK, EcPPx, KoPPK, pKDM12 and plated</li> | ||
+ | <li>27/08:Made grid plates of EcPhoE, EcPst and ApPst to screen colonies that have been transformed with the respective plasmid</li> | ||
+ | <img src="https://static.igem.org/mediawiki/2015/thumb/1/10/EcPhoE_Screen_Plate.jpg/665px-EcPhoE_Screen_Plate.jpg" height="25%" width="25%"class="border"/> | ||
+ | <img src="https://static.igem.org/mediawiki/2015/thumb/4/47/EcPST_Screen_Plate.jpg/675px-EcPST_Screen_Plate.jpg"height="25%" width="25%"class="border"/> | ||
+ | <img src="https://static.igem.org/mediawiki/2015/thumb/1/1b/ApPst_Screen_Plate.jpg/600px-ApPst_Screen_Plate.jpg"height="22.5%" width="22.5%"class="border"/> | ||
+ | <li>28/08: 3 in 1 GoTaq Colony PCR of EcPhoE, EcPst and ApPst (use 3 colony samples per PCR tube to save reagents and reduce the number of samples to be run)</li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week 11 - August 31- September 4 </h3> | + | <div class="DatePeriod" id="Week11"> |
− | <ul> | + | <h3>Week 11 - August 31- September 4 </h3> |
− | <li>28/08:2nd attempt at double digest of EcPPK, EcPPx, KoPPK, pKDM12 with Xba1 and Spe1 to get clearer gel results</li> | + | <ul> |
− | <img src="https://static.igem.org/mediawiki/2015/3/34/Ecppx_KoPPK_digests-XbaI.SpeI_.PNG" height="25%" width="25%"/> | + | <li>28/08:2nd attempt at double digest of EcPPK, EcPPx, KoPPK, pKDM12 with Xba1 and Spe1 to get clearer gel results</li> |
− | <img src="https://static.igem.org/mediawiki/2015/thumb/3/3f/EcPPK_pKDM12-XbaI.Spe1.PNG/ | + | <img src="https://static.igem.org/mediawiki/2015/thumb/3/34/Ecppx_KoPPK_digests-XbaI.SpeI_.PNG/598px-Ecppx_KoPPK_digests-XbaI.SpeI_.PNG" height="25%" width="25%"/> |
− | <li>03/09:Tests to see if fluorimetry is a viable means to measure polyphosphate in the cells</li> | + | <img src="https://static.igem.org/mediawiki/2015/thumb/3/3f/EcPPK_pKDM12-XbaI.Spe1.PNG/602px-EcPPK_pKDM12-XbaI.Spe1.PNG" height="25%" width="25%"/> |
− | <li>03/09:Slides for fluorescence microscopy prepared using DAPI staining</li> | + | <li>03/09:Tests to see if fluorimetry is a viable means to measure polyphosphate in the cells</li> |
− | <li>04/09:Microscopy reveals polyphosphate chains are visible - success!! </li> | + | <li>03/09:Slides for fluorescence microscopy prepared using DAPI staining</li> |
− | <li>04/09:Miniprep of ApPst colonies #22, 23, 24, 37, 38, 39. (tested concentraions with nanodrop)</li> | + | <li>04/09:Microscopy reveals polyphosphate chains are visible - success!! </li> |
− | <li>04/09:Double digest of mini-prepped ApPst with EcoR1 and Pst1</li> | + | <li>04/09:Miniprep of ApPst colonies #22, 23, 24, 37, 38, 39. (tested concentraions with nanodrop)</li> |
− | <li>04/09:Yet another phosphate assay with formic acid done (same strains) - decent results </li> | + | <li>04/09:Double digest of mini-prepped ApPst with EcoR1 and Pst1</li> |
− | </ul> | + | <img src="https://static.igem.org/mediawiki/2015/thumb/3/39/ApPst_DubDig.JPG/600px-ApPst_DubDig.JPG"height="25%" width="25%"/> |
+ | <li>04/09:Yet another phosphate assay with formic acid done (same strains) - decent results </li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week 12 - September 7-11 | + | <div class="DatePeriod" id="Week12"> |
− | <ul> | + | <h3>Week 12 - September 7-11</h3> |
− | <li>07/09:Phosphate assay team analysed water samples from around the world- Israel, Egypt...</li> | + | <ul> |
− | <li>07/09:<em>Pseudomonas aeruginosa</em> PCR attempt #7 - fresh plate of bacteria used- research showed that a biofil forms on the bacteria and prevents proper amplification- still no positive results. Control failed.</li> | + | <li>07/09:Phosphate assay team analysed water samples from around the world- Israel, Egypt...</li> |
− | <li>08/09:Colony PCR on competent cells transformed with PstC and PPK</li> | + | <li>07/09:<em>Pseudomonas aeruginosa</em> PCR attempt #7 - fresh plate of bacteria used- research showed that a biofil forms on the bacteria and prevents proper amplification- still no positive results. Control failed.</li> |
− | </ul> | + | <li>08/09:Colony PCR on competent cells transformed with PstC and PPK</li> |
+ | <li>10/09:Digested pAdapt with SmaI, dephosphorylated with Antarctic Phosphatase, ran gel electrophoresis</li> | ||
+ | <li>10/09:Ran Q5 Colony PCR of BW25113 cells with EcPst Primers - bulk up</li> | ||
+ | <li>11/09:Prepared BW25113 and KoPPK cells for NMR</li> | ||
+ | </ul> | ||
+ | </div> | ||
− | <h3>Week 13 - September 13-18 </h3> | + | <div class="DatePeriod" id="Week13"> |
− | <ul> | + | <h3>Week 13 - September 13-18 </h3> |
− | </ul> | + | <ul> |
+ | <li>14/09:Shipped first plate of biobricks to iGEM HQ!</li> | ||
+ | <li>14/09:NMR of KoPPK strain</li> | ||
+ | <li>14/09:Set up 7 hour growth assay</li> | ||
+ | <li>15/09:Set up 6 hour combined growth and phosphate assay</li> | ||
+ | <li>15/09:Mini-prep, nanodrop, digestion with EcoR1 and Pst1 of ApPst colonies - no success, realised we needed to let other colonies grow more as <i>Accumulibacter</i> grows slowly</li> | ||
+ | <li>16/09:Repeat previous day's protocols with new overnight culture of ApPst</li> | ||
+ | <li>16/09:Sonicated cells from the previous day and analysed with a plate reader alongside a media assay.</li> | ||
+ | <li>17/09:Shipped second plate of biobricks to iGEM HQ!</li> | ||
+ | <li>17/09:Finalised business plan</li> | ||
+ | <li>17/09:Sonication of cells and phosphate assay to characterise cells</li> | ||
+ | <li>18/09:Final sonication of cells and phosphate assay data analysis</li> | ||
+ | <li>18/09:Lab clean-up!</li> | ||
+ | <li>18/09:Finished wiki!</li> | ||
+ | </ul> | ||
+ | </div> | ||
+ | </div> | ||
</div> | </div> | ||
− | <div class="col-md- | + | <div class="col-md-5"></div> |
</body> | </body> | ||
+ | <script> | ||
+ | function toggleWeek(weekID) { | ||
+ | $('.DatePeriod').hide(); // this hides all currently open div of class(if any); | ||
+ | $('#' + weekID).fadeIn(500); // show desired div | ||
+ | } | ||
+ | $('.DatePeriod').hide(); //All div start hidden | ||
+ | |||
+ | $(document).ready(function(){ | ||
+ | $("img").click(function() { | ||
+ | $(this).toggleClass("bigger"); | ||
+ | }); | ||
+ | }); | ||
+ | </script> | ||
</html> | </html> |
Latest revision as of 19:24, 18 September 2015
Notebook
The following is a weekly description of the experiments carried out each week. To see the protocols click here
(Click to enlarge images)
Dry Lab Work Period
- 28/01:Brief introductory meeting about the iGEM competition
- 17/03:The official iGEM team to represent the University of York was formed!
- Daily dry lab research begins, primer and construct designs made and ordered.
- 05/05:Articlepublished in Nouse (University newspaper) about the 2015 iGEM team.
- 03/06:We were invited to Science and Technology Alumni Network discussion event (outreach)
- 04/06:Articlepublished on the University's central news about this years iGEM team.
- 12/06:A meeting was held with Yorkshire Water to discuss water remediation processes in the Yorkshire region
- 13/06:We were invited to a University of York Biology Alumni event
- 15/06:
- Some of us went to a round-table discussion about the impact of Santander at York as some of the team members won the International Connections Award by Santander.
- Articlepublished on Mind the Horizon about University of York iGEM
- 19/06:
- Lab safety induction was carried out
- We passed out pamphlets at the York Festival of Ideas to raise awareness about the iGEM competition and synthetic biology.
- 26&27/06: We participated in giving talks to prospective students about iGEM.
Week 1 - June 23-27
- 24/07:Wet lab practice day- reviewed basic lab protocols- making LB, agar plates, competent cells, transformations, PCR
- 23-27/07:Dry lab research continues
Week 2 - June 29- July 3
- 01/07:Competent cells made
- 02/07:Plates were streaked with two isolates of each deletion wanted from the Keio collection [PPX, PPK, PstA, PstB, PstC, PstS and PhoE] These have been collected and put in the incubating (37°C) room.
- 03/07:Competent cells were tested with iGEM transformation efficiency kit
Week 3 - July 6-10
- 07/07:More agar plates made, next set of competent cell procedure started
- 07/07:YUfund page done and submitted
Week 4 - July 13-17
- 14/07:Vistited Badger Hill Primary School and held a bacteria workshop for the students
- 15/07:First day of demonstrations of cell transformations and aseptic technique to sixth formers
- 16/07:Second day of demonstrations to sixth formers:analysing transformations and building bioreactors
- 17/07:Analysing bioreactors with sixth formers
- 17/07:Phosphate assay done to get a standard curve
- 17/07:First attempt at growth assay - had to be redone, as computer crashed and updated mid-run
Week 5 - July 20-24
- 20/07:Phosphate assay was started for KEIO collection - PPK, PPX, wildtype - no results
- 20/07:Colony PCR on SmPstSCAB, EcPstSCAB and EcPhoE
- 20/07:Next set of competent cells made
- 22/07:X-Gal/IPTG Plates made
- 22/07:Digested pSB1C3 with EcoRI and DpnI, then used Gibson Assembly to insert our adapter genes in.
- 23/07:Visit to AgeUK LunchClub to explain about the GM
- 23/07:Glycerol stocks of Sinorhizobium meliloti
- 23/07:Phosphate assay of PPK, PPX, wildtype again with formic acid. Samples were neutralised before plating. - no results
- 24/07:Ran gel electrophoresis of PCR from 22/07
- 24/07:Second attempt at growth assay - had to be redone due to poor cell growth, potentially caused by poor spreading of plates
Week 6 - July 27-31
- 27/07:Phage contamination scare - total clean of the lab
- 27/07:More BW25113 competent cells made
- 27/07:Preparations for glassmilk procedure
- 28/07:First day of outreaching event to Saint Helen's CHurch, York, to carry out strawberry extraction practical and briefly explain about the steps involved for GM
- 29/07:Second (and the last day) of outreaching event to Saint Helen's Church, York, to carry out strawberry extraction practical and briefly explain about the steps involved for GM
- 30/07:After several repeats the phosphate assay team managed to get significant data
- 30/07:Phosphate assay on Keasling strains: pBC9, pBC29 and pKDM12.
Week 7 - August 3-7
- 03/08:Plasmid (pBC 29 Keasling collection )loss experiment initiated
- 05/08:Q5 PCR of SmPst, EcPst, EcPhoE
- 05/08:Transformation of gibson from 30/07
- 05/08:Q5 Colony PCR of SmPstSCAB, EcPstSCAB, EcPhoESCAB
- 05/08:PCR pf pBC9, pBC29
- 06/08:Mini-prep of pKDM12 and KoPPK, nanodrop
- 06/08:Third attempt at growth assay - did not test any Pst or PhoE genes, results ok
- 06/08:Inoculated overnight cultures of ApPst, ApPPK (SK-12, BA-91, UW-1)
- 06/08:Ran GoTaq Colony PCR of same colonies of ApPst, ApPPK (SK-12, BA-91, UW-1)
- 06/08:Ran gel electrophoresis of colony PCR
- 06/08:Inoculated overnight cultures of BW25113, pkDM12, KoPPK
- 07/08:Fourth attempt at growth assay - exact repeat to verify results
- 07/08:Mini-prep of overnight cultures of ApPst, ApPPK (SK-12, BA-91, UW-1)
- 07/08:Used Nanodrop machine to measure concentration of miniprep products
- 07/08:Performed an analytical digest of purified plasmids [ApPst, ApPPK (SK-12, BA-91, UW-1)] with EcoR1 and Pst1
Week 8 - August 10-14
- 10/08:Transform competent cells with plasmid (?)
- 10/08:Ran GoTaq colony PCR of ApPst, screened for correct product, ran gel
- 10/08:Performed a gibson assembly of EcPhoE Q5 PCR product (from 05/08)
- 10/08:Ran a gel of SmPst and EcPst Q5 products (from 05/08), then digested with Dpn1, nanodropped, PCR purified and performed a gibson assembly10/08:Ran an overhang-adding step-up PCR of KoPPK, pkDM12, pBC9, pBC29
- 11/08:Ran a Pseudomonas aeruginosa colony PCR to amplify PaOprO and PaOprP
- 11/08:Ran a GoTaq colony PCR of all KEIO collection genes used (growth assay team), ran gels to verify that knockouts were present
- 11/08:Glassmilk was made
- 11/08:NMR test ran on BW25113
- 12/08:Another phosphate assay run- using more formic acid, not neutralised this time.
- 12/08:Digested lacZ pSB1C3 with EcoR1, ran gel, and performed gel extraction and purification protocols
- 12/08:Fifth attempt at growth assay - new plate design with increased phosphate levels
- 13/08:Digest pAdapt with Sma1
- 13/08:Ran Gibson assembly of EcPstSCAB, SmPstSCAB, KoPPK, pKDM12, EcPPX, EcPPK "colony 1 and 2", EcPhoE
- 13/08:Transformed BW2115 with gibson products and plated on agar.
- 14/08:Ran GoTaq PCR of colonies from Gibson plates and performed gel electrophoresis with PCR products.
- 14/08:Ran another GoTaq colony PCR of all KEIO collection genes used(growth assay team), to verify the knockouts that didn't work the first time around
- 14/08:Same phosphate assay as on the 12th but neutralised with 1M sodium hydroxide - did not work
Week 9 - August 17-21
- 17/08:Make liquid cultures of colonies that were verified with the gel on the 14th(EcPPX, EcPPK, pKDM12)
- 17/08:Attempt colony PCR of different colonies for gibsons that did not work (EcPst, KoPPK, SmPst, EcPhoE)
- 17/08:PCR amplified the digest of lacZ pSB1C3 (from 12/08) to make sure that no product is in the plasmid
- 17/08:Ran gel of PaOprO/PaOprP PCR attempt #1 - no positive results, even control failed
- 17/08:Glassmilk was used to isolate PolyP during yet another phosphate assay - this also did not work.
- 18/08:New phosphate assay was run on PPK, PPX and BW2115 with formic acid, this time neutralised with 6M sodium hydroxide.
- 19/08:Growth median assay on all of KEIO collection for phosphate assay purposes
- 19/08:Pseudomonas aeruginosa PCR attempt #2 - used more colony and made colony dilution. No positive results. Control failed.
- 20/08:Prepared a 3 hour and a 12 hour growth median assay. 3 hour test failed, and although the 12 hour test was completed, no results were conclusive.
- 20/08:Pseudomonas aeruginosa PCR attempt #3 - changed extension time from 30 to 40 seconds. No positive results. Control failed.
- 20/08:Sixth attempt at growth assay - only tested PstC and PstA to see which one had an increased growth phenotype
- 20/08:Pseudomonas aeruginosa PCR attempt #4 - used 3 differnet polymerases- Taq, Q5, Phusion. Correct bands visible only with Taq.
- 20/08:Gibson of pAdapt digested with Sma1 and ApPst 1 and 2
- 21/08:12 hour growth median assay ran - absorbances were too high, a precipitate formed
Week 10 - August 24-28
- 23/08:Inoculate liquid cultures of EcPPX, EcPPK, pKDM12, KoPPK
- 23/08:Dephosphorylate lacZ #1,2,3 with Antarctic Phosphatase
- 24/08:Run double digest of the gibson assembled plasmids (EcPPX, EcPPK, pKDM12, KoPPK) with Xba1 and Xba1 + Spe1
- 25/08:Nanodrop lacZ #1,2,3 and transform BW2115 with lacZ #1 plasmid, plate on X-Gal/IPTG agar for blue-white screening
- 26/08:GoTaq PCR screen of EcPst, EcPhoE, SmPst, ApPst
- 26/08:Pseudomonas aeruginosa PCR attempt #5 - new Phusion polymerase and buffer used- still no positive results. Control failed.
- 26/08:Formic acid phosphate assay ran on PPK, PPX and BW25113.
- 26/08:Double digest of EcPPK, EcPPx, KoPPK, pKDM12 with Xba1 and Spe1, ran gel electrophoresis
- 27/08:Pseudomonas aeruginosa PCR attempt #6 - changed extension time to 35 seconds, raised annealing temperature from 60 to 65 degrees- still no positive results. Control failed.
- 27/08:Competent cells made for phosphate assay
- 27/08:Transformed BW25113 lacZ #1 cells with EcPPK, EcPPx, KoPPK, pKDM12 and plated
- 27/08:Made grid plates of EcPhoE, EcPst and ApPst to screen colonies that have been transformed with the respective plasmid
- 28/08: 3 in 1 GoTaq Colony PCR of EcPhoE, EcPst and ApPst (use 3 colony samples per PCR tube to save reagents and reduce the number of samples to be run)
Week 11 - August 31- September 4
- 28/08:2nd attempt at double digest of EcPPK, EcPPx, KoPPK, pKDM12 with Xba1 and Spe1 to get clearer gel results
- 03/09:Tests to see if fluorimetry is a viable means to measure polyphosphate in the cells
- 03/09:Slides for fluorescence microscopy prepared using DAPI staining
- 04/09:Microscopy reveals polyphosphate chains are visible - success!!
- 04/09:Miniprep of ApPst colonies #22, 23, 24, 37, 38, 39. (tested concentraions with nanodrop)
- 04/09:Double digest of mini-prepped ApPst with EcoR1 and Pst1
- 04/09:Yet another phosphate assay with formic acid done (same strains) - decent results
Week 12 - September 7-11
- 07/09:Phosphate assay team analysed water samples from around the world- Israel, Egypt...
- 07/09:Pseudomonas aeruginosa PCR attempt #7 - fresh plate of bacteria used- research showed that a biofil forms on the bacteria and prevents proper amplification- still no positive results. Control failed.
- 08/09:Colony PCR on competent cells transformed with PstC and PPK
- 10/09:Digested pAdapt with SmaI, dephosphorylated with Antarctic Phosphatase, ran gel electrophoresis
- 10/09:Ran Q5 Colony PCR of BW25113 cells with EcPst Primers - bulk up
- 11/09:Prepared BW25113 and KoPPK cells for NMR
Week 13 - September 13-18
- 14/09:Shipped first plate of biobricks to iGEM HQ!
- 14/09:NMR of KoPPK strain
- 14/09:Set up 7 hour growth assay
- 15/09:Set up 6 hour combined growth and phosphate assay
- 15/09:Mini-prep, nanodrop, digestion with EcoR1 and Pst1 of ApPst colonies - no success, realised we needed to let other colonies grow more as Accumulibacter grows slowly
- 16/09:Repeat previous day's protocols with new overnight culture of ApPst
- 16/09:Sonicated cells from the previous day and analysed with a plate reader alongside a media assay.
- 17/09:Shipped second plate of biobricks to iGEM HQ!
- 17/09:Finalised business plan
- 17/09:Sonication of cells and phosphate assay to characterise cells
- 18/09:Final sonication of cells and phosphate assay data analysis
- 18/09:Lab clean-up!
- 18/09:Finished wiki!