Team:Hong Kong-CUHK/home.html
From 2014.igem.org
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</style> | </style> | ||
- | < | + | <div id="safety-content" class="row"> |
- | + | <!--Nav Bar --> | |
- | "id" | + | <nav class="col-sm-3 hidden-xs bs-docs-sidebar"> |
- | + | <ul id="sidebar" class="nav nav-stacked"> | |
- | + | <li class="active"> | |
- | + | <a href="#protocol">Protocol</a> | |
- | + | <ul class="nav nav-stacked"> | |
- | + | <li><a href="#DNA">Bacterial DNA extraction protocol for <br>Azotobacter vinelandii or E.coli</a> | |
- | + | </li> | |
- | + | <li><a href="#miniprep">Miniprep</a> | |
- | + | </li> | |
- | + | <li><a href="#BL21">Preparation of chemically competent BL21 <br>E. coli cells</a> | |
- | + | </li> | |
- | + | <li><a href="primer">Primer Design</a> | |
- | + | </li> | |
- | + | <li><a href="#pcr1">PCR - Phusion DNA polymerase NEB</a> | |
- | + | </li> | |
- | + | <li><a href="#pcr2">PCR - PCR - LA Taq DNA polymerase Takara</a> | |
- | + | </li> | |
- | + | <li><a href="#DDD">Double Digestion of DNA with 2 different restriction enzymes NEB</a> | |
- | + | </li> | |
- | + | <li><a href="#BL21">Preparation of chemically competent BL21 E. coli cells</a> | |
+ | </li> | ||
+ | </ul> | ||
+ | </li> | ||
+ | <li> | ||
+ | <a href="#notebook">Notebook</a> | ||
+ | <ul class="nav nav-stacked"> | ||
+ | <li><a href="#june">June</a> | ||
+ | </li> | ||
+ | <li><a href="#july">July</a> | ||
+ | </li> | ||
+ | <li><a href="#august">August</a> | ||
+ | </li> | ||
+ | <li><a href="#september">September</a> | ||
+ | </li> | ||
+ | <li><a href="#october">October</a> | ||
+ | </li> | ||
+ | </ul> | ||
+ | </li> | ||
- | + | </ul> | |
- | + | </nav> | |
- | " | + | <!--Main Content --> |
- | + | <div class="col-sm-9"> | |
- | + | <section id="protocol" class="group"> | |
- | + | <h2><b>PROTOCOL</b> | |
- | + | </h2> | |
- | + | <h3 id="DNA"><b>Bacterial DNA extraction protocol for Azotobacter vinelandii or E.coli</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well">We are using the <a href="http://www.takara.co.kr/file/manual/pdf/9763_e.v1309Da.pdf" target="_blank">TaKaRa MiniBEST Bacteria Genomic DNA Extraction Kit</a> of Takara according to the manufacturer directions. | |
- | + | </div> | |
- | + | <h3 id="miniprep"><b>Miniprep</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well">We are using the <a href="http://eshop.intronbio.com/product/detail04.asp?pIdx=1" target="_target">DNA-spin™ Plasmid DNA Purification Kit</a> of Intron Technology according to the manufacturer directions. | |
- | + | </div> | |
- | + | <h3 id="BL21"><b>Preparation of chemically competent BL21 E. coli cells</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well"> | |
- | + | <p> | |
- | + | Day1 | |
- | + | <br>Streak Bl21 on a LB agar plate without antibiotic, grow overnight in 37℃ incubator | |
- | + | </p> | |
- | + | ||
- | + | <p> | |
- | + | Day2 | |
- | + | <br>Pick a single colony and inoculate into 3ml LB broth, grow o/n in 37℃ shaker | |
- | + | <br>Prepare & autoclave 500ml LB broth | |
- | + | <br>Check if there is enough liquid nitrogen | |
- | + | <br> | |
- | + | </p> | |
- | + | <p>Day3 Morning: pour the 3ml dense pre-culture into 500ml LB broth | |
- | + | <br>Shake in 37C until OD600nm reach 0.8 | |
- | + | <br>[Melody's experience: it takes 4~5hrs]</p> | |
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- | + | <p>Solution Needed | |
- | + | <br>Wash Buffer I | |
- | + | <br>800mM MgCl2 + 20mM CaCl2</p> | |
- | + | ||
- | + | <p>Wash Buffer II | |
- | + | <br>125mM CaCl2</p> | |
- | + | ||
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- | + | ||
- | + | <p>Resuspend Buffer | |
+ | <br>85mM CaCl2 + 15% glycerol [filtered]</p> | ||
- | + | <ol> | |
- | + | <li>pre-cool Wash Buffer I & Wash Buffer II in ice</li> | |
- | + | <li>Pre-cool the centrifuge to 4C (with fixed angle rotor)</li> | |
- | + | <li>Check the OD600nm of the 500ml culture</li> | |
- | . | + | <li>Centrifuge the cells at 4000g for 5 mins, 4℃</li> |
- | + | <li>Discard the supernatant</li> | |
- | + | <li>Gently resuspend the pellet in 20ml ice cold Wash Buffer I</li> | |
- | + | <li>Put the samples on ice for 10 mins</li> | |
- | + | <li>Centrifuge the cells at 4000g for 5 mins, 4℃</li> | |
- | + | <li>Discard the supernatant</li> | |
- | + | <li>Gently resuspend the pellet in 10ml ice cold Wash Buffer II</li> | |
+ | <li>Put the samples on ice for 10 mins</li> | ||
+ | <li>Centrifuge the cells at 4000g for 5 mins, 4℃</li> | ||
+ | <li>Discard the supernatant</li> | ||
+ | <li>Resuspend cells in 20ml ice cold Resuspend Buffer</li> | ||
+ | <li>Aliquot 200ul using sterile pre-chilled eppendorf tubes</li> | ||
+ | </ol> | ||
+ | </div> | ||
+ | <h3 id="primer"><b>Primer Design</b> | ||
+ | </h3> | ||
+ | <div class="subgroup well"> | ||
+ | Primers were designed manually using <a href="http://www.bioinformatics.org/sms2/pcr_primer_stats.html" target="_blank">PCR Primer Stats</a> of Sequence Manipulation Suite, for analyzing secondary structures and also annealing conditions. | ||
+ | </div> | ||
+ | <h3 id="pcr1"><b>PCR - Phusion DNA polymerase NEB</b> | ||
+ | </h3> | ||
+ | <div class="subgroup well"> | ||
+ | <p>50ul reaction</p> | ||
+ | <table class="table table-hover"> | ||
+ | <thead> | ||
+ | <tr> | ||
+ | <th>Reactives</th> | ||
+ | <th>Volume(μL)</th> | ||
+ | </tr> | ||
+ | </thead> | ||
+ | <tbody> | ||
+ | <tr> | ||
+ | <td>DNA template</td> | ||
+ | <td>1</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>5x Phusion HF Buffer</td> | ||
+ | <td>10</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10mM dNTPs</td> | ||
+ | <td>1.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10uM Primer Fw</td> | ||
+ | <td>0.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10uM Primer Rv</td> | ||
+ | <td>0.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Phusion DNA polymerase</td> | ||
+ | <td>0.25-0.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>100% DMSO</td> | ||
+ | <td>1.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>dH2O</td> | ||
+ | <td>Up to 50</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td><b>Total</b> | ||
+ | </td> | ||
+ | <td><b>50</b> | ||
+ | </td> | ||
+ | </tr> | ||
+ | </tbody> | ||
+ | </table> | ||
- | + | <p>Cycling condition: | |
- | + | <br>Initial Denaturation (1 cycle): | |
- | + | <br>98°C 30 sec | |
+ | <br> | ||
+ | <br>Amplification (35 cycles): | ||
+ | <br>98°C 10 sec | ||
+ | <br>55-72 °C 30 sec | ||
+ | <br>72°C 0.25- 0.5 min/kb | ||
+ | <br> | ||
+ | <br>Final elongation (1 cycle) | ||
+ | <br>72°C 3 min</p> | ||
+ | </div> | ||
- | + | <h3 id="pcr2"><b>PCR - LA Taq DNA polymerase Takara</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well"> | |
+ | <p>50ul reaction</p> | ||
+ | <table class="table table-hover"> | ||
+ | <thead> | ||
+ | <tr> | ||
+ | <th>Reactives</th> | ||
+ | <th>Volume(μL)</th> | ||
+ | </tr> | ||
+ | </thead> | ||
+ | <tbody> | ||
+ | <tr> | ||
+ | <td>DNA template</td> | ||
+ | <td>1</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10x LA taq Buffer</td> | ||
+ | <td>5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10mM dNTPs</td> | ||
+ | <td>1.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10uM Primer Fw</td> | ||
+ | <td>0.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>10uM Primer Rv</td> | ||
+ | <td>0.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>LA taq polymerase</td> | ||
+ | <td>0.25-0.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>100% DMSO</td> | ||
+ | <td>1.5</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>dH2O</td> | ||
+ | <td>Up to 50</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td><b>Total</b> | ||
+ | </td> | ||
+ | <td><b>50</b> | ||
+ | </td> | ||
+ | </tr> | ||
+ | </tbody> | ||
+ | </table> | ||
- | + | <p>Cycling condition: | |
- | + | <br>Initial Denaturation (1 cycle): | |
- | + | <br>94°C 1 min | |
- | + | <br> | |
- | + | <br>Amplification (30 cycles): | |
+ | <br>98°C 10 sec | ||
+ | <br>55-72 °C 30 sec | ||
+ | <br>68°C 0.5- 1 min/kb | ||
+ | <br> | ||
+ | <br>Final elongation (1 cycle) | ||
+ | <br>72°C 5 min</p> | ||
+ | </div> | ||
+ | <h3>NEB Gibson assembly</h3> | ||
+ | <div class="subgroup well"> | ||
+ | <p>We are using the Gibson Assembly® Master Mix of NEB Inc. according to the manufacturer directions.</p> | ||
+ | </div> | ||
+ | <br> | ||
- | + | <h3 id="DDD"><b>Double Digestion of DNA with 2 different restriction enzymes NEB</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well"> | |
- | + | <p>30μl reaction</p> | |
- | + | <table class="table table-hover"> | |
- | + | <thead> | |
- | + | <tr> | |
- | + | <th>Reactives</th> | |
- | + | <th>Volume(μL)</th> | |
- | + | </tr> | |
- | + | </thead> | |
- | + | <tbody> | |
+ | <tr> | ||
+ | <td>DNA</td> | ||
+ | <td>Up to 1 μg</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>CutSmart™ Buffer</td> | ||
+ | <td>3</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>EcoRI-HF®*</td> | ||
+ | <td>1</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>SpeI/PstI/XbaI*</td> | ||
+ | <td>1</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>dH2O</td> | ||
+ | <td>Up to 30μL</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td><b>Total</b> | ||
+ | </td> | ||
+ | <td><b>30</b> | ||
+ | </td> | ||
+ | </tr> | ||
+ | </tbody> | ||
+ | </table> | ||
+ | <p>Incubate at 37 °C incubator or heat bath for 0.25 to 2 hours. | ||
+ | <br>*For combinations of restriction enzymes other than the above, please kindly refer to Double Digest Finder from NEB Inc. for suitable buffer condition.</p> | ||
+ | <br> | ||
+ | <h3 id="dna"><b>DNA ligation with T4 DNA ligase NEB</b> | ||
+ | </h3> | ||
+ | <div class="subgroup well"> | ||
+ | <table class="table table-hover"> | ||
+ | <thead> | ||
+ | <tr> | ||
+ | <th>Reactives</th> | ||
+ | <th>Volume(μL)</th> | ||
+ | </tr> | ||
+ | </thead> | ||
+ | <tbody> | ||
+ | <tr> | ||
+ | <td>T4 DNA ligase</td> | ||
+ | <td>1</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Buffer 10X</td> | ||
+ | <td>2</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Vector DNA</td> | ||
+ | <td>n pmol</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>Insert DNA</td> | ||
+ | <td>3n pmol</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td>dH2O</td> | ||
+ | <td>Up to 20μL</td> | ||
+ | </tr> | ||
+ | <tr> | ||
+ | <td><b>Total</b> | ||
+ | </td> | ||
+ | <td><b>20</b> | ||
+ | </td> | ||
+ | </tr> | ||
+ | </tbody> | ||
+ | </table> | ||
+ | <p>Incubate at room temperature for 0.25 -1 hours.</p> | ||
+ | </div> | ||
+ | </section> | ||
- | + | <section id="notebook" class="group"> | |
+ | <h2><b>NOTEBOOK</b> | ||
+ | </h2> | ||
+ | <h3 id="june"><b>JUNE</b> | ||
+ | </h3> | ||
+ | <div class="subgroup well"> | ||
+ | <ol> | ||
+ | <li>Preparation of Competent Cells of dh5α and BL21, aliquot the competent cells, stored in liquid nitrogen and then -80C refrigerator.</li> | ||
+ | <li>Transformation of: J23100-119 into dh5α</li> | ||
+ | <li>Preparation of special medium and plate for A. vinelandii</li> | ||
+ | <li>Make LB agar solution</li> | ||
+ | <br> | ||
- | + | <li>Study the growth curve characteristics of A. vinelandii</li> | |
- | + | <li>Study the natural antibiotics resistance of A. vinelandii</li> | |
- | + | <br> | |
- | + | <li>Make plate with antibiotics -Ampicillin, kanamycin and chloramphenicol.</li> | |
- | + | <li>Preparation of Competent Cells of A. vinelandii</li> | |
- | + | <li>Purchase for primers for the Carbon fixation system project.</li> | |
- | + | <li>Primer dilution of the all carbon fixation system primers</li> | |
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii nifB gene.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii nifQ gene.</li> | ||
+ | <br> | ||
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii FdxA gene.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of Aquifex aeolicus mbhS3 gene.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of Aquifex aeolicus mbhL3 gene.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of E. coli SH3PDZ domain gene.</li> | ||
+ | </ol> | ||
+ | </div> | ||
- | + | <h3><b>JULY</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well"> | |
- | + | <ol> | |
- | + | <li>Make plate with 2% hard agar with antibiotics- chloramphenicol.</li> | |
- | + | <li>Make plate with antibiotics -Ampicillin.</li> | |
- | + | <li>Overlapping PCR of A. vinelandii nifB gene, A. vinelandii nifQ gene and A. vinelandii FdxA gene</li> | |
- | + | <li>Restriction of Overlapping PCR product A. vinelandii nifB-nifQ-FdA, ligase into double terminator plasmid and transform into dh5α.</li> | |
- | + | <li>Overlapping PCR of Aquifex aeolicus mbhS3 gene and mbhL3 gene.</li> | |
- | + | <li>Restriction of Overlapping PCR product Aquifex aeolicus mbhS3-L3, ligase into double terminator plasmid and transform into dh5α.</li> | |
- | + | <li>Make LB agar solution</li> | |
+ | <li>Restriction of PCR product E. coli SH3PDZ domain gene, ligase into C backbone and transform into dh5α.</li> | ||
+ | <li>Stable genome integration of J23100 into A. vinelandii and study its characteristics</li> | ||
+ | <li>Purchase for primers for the Nitrogen- repressible T7 expression system.</li> | ||
+ | <li>Arrival of synthetic sequences of A. vinelandii nitrogenase structural gene</li> | ||
+ | <li>Try Gibson assembly of synthetic sequences of A. vinelandii nitrogenase structural gene</li> | ||
+ | </ol> | ||
+ | </div> | ||
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- | + | <h3><b>AUGUST</b> | |
- | + | </h3> | |
+ | <div class="subgroup well"> | ||
+ | <ol> | ||
+ | <li>Arrival of synthetic sequences of A. vinelandii nitrogenase accessory gene.</li> | ||
+ | <li>Arrival of synthetic sequences of Aquifex aeolicus hydrogenase accessory gene.</li> | ||
+ | <li>Arrival of all primers for the Nitrogen- repressible T7 expression system</li> | ||
+ | <li>Primer dilution of the all Nitrogen- repressible T7 expression system primers</li> | ||
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii nifH gene.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii nifK gene</li> | ||
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii nifH gene with strong rbs.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of A. vinelandii nifH gene with weak rbs.</li> | ||
+ | <li>Transformation of T7 RNA polymerase and T7 promoter into dh5α.</li> | ||
+ | <li>Amplification by using PCR, following by run gel of BL21 T7 RNA polymerase.</li> | ||
+ | <li>Overlapping PCR of A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase.</li> | ||
+ | <li>Overlapping PCR of A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase.</li> | ||
+ | <li>Amplification by using oligo PCR, following by run gel of random sequence</li> | ||
+ | <li>Transformation of ptet- mRFP-d.t. and mRFP-d.t. into dh5α.</li> | ||
+ | <li>Amplification by using oligo PCR, following by run gel of part of mRFP</li> | ||
+ | <li>Restriction of PCR product random sequence, ligase into ptet- mRFP-d.t. plasmid and transform into dh5α.</li> | ||
+ | <li>Transformation of amilcp-d.t. into dh5α.</li> | ||
+ | <li>Restriction of PCR product nifH, ligase into mRFP-d.t. plasmid and transform into dh5α.</li> | ||
+ | </ol> | ||
+ | </div> | ||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | + | <h3><b>September</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well"> | |
+ | <ol> | ||
+ | <li>Try Gibson Assembly of synthetic sequences of A. vinelandii nitrogenase accessory gene.</li> | ||
+ | <li>Try Gibson Assembly of synthetic sequences of Aquifex aeolicus hydrogenase accessory gene.</li> | ||
+ | <li>Restriction of PCR product A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase, ligase into double terminator plasmid and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase, ligase into double terminator plasmid and transform into dh5α.</li> | ||
+ | <li>Restriction of biobrick A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase-double terminator ligase into random sequence with ptet-mRFP-d.t. and transform into dh5α.</li> | ||
+ | <li>Restriction of biobrick A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase-double terminator ligase into random sequence with ptet-mRFP-d.t. and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product A. vinelandii nifK gene,ligase into biobrick A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase-double terminator and random sequence with ptet-mRFP-d.t. and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product A. vinelandii nifK gene,ligase into biobrick A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase-double terminator and random sequence with ptet-mRFP-d.t. and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product A. vinelandii nifK gene, ligase into C back bone and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product A. vinelandii nifH gene, ligase into C back bone and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product part of mRFP, ligase into C back bone and transform into dh5α.</li> | ||
+ | <li>Restriction of BBa_K1314013, ligase into A backbone and transform into dh5α.</li> | ||
+ | <li>Restriction of BBa_K1314014, ligase into A backbone and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product part of mRFP, ligase into amilcp- d.t. and transform into dh5α.</li> | ||
+ | <li>Restriction of PCR product, random sequence, ligase into T7 promoter and transform into dh5 α.</li> | ||
+ | <li>Restriction of biobrick random sequence- T7 promoter, ligase into C backbone and transform into dh5α</li> | ||
+ | <li>Restriction of biobrick random sequence- T7 promoter, ligase into amilcp- d.t.-part of mRFP, and transform into dh5α.</li> | ||
+ | <li>Send all biobricks to sequencing</li> | ||
+ | <li>Transformation of BBa_K1314011 into BL21.</li> | ||
+ | <li>Stable genome integration of BBa_K1314013 into A. vinelandii</li> | ||
+ | <li>Stable genome integration of BBa_K1314014 into A. vinelandii</li> | ||
+ | <li>Stable genome integration of BBa_K1314011 into A. vinelandii</li> | ||
+ | <li>Blunt end ligation and transformation to make BBa_K1314015</li> | ||
+ | </ol> | ||
+ | </div> | ||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | |||
- | + | <h3><b>October</b> | |
- | + | </h3> | |
- | + | <div class="subgroup well">1. Submission of all biobricks to the registry</div> | |
- | + | </section> | |
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<section id="protocol" class="group">
PROTOCOL
Bacterial DNA extraction protocol for Azotobacter vinelandii or E.coli
Miniprep
Preparation of chemically competent BL21 E. coli cells
Day1
Streak Bl21 on a LB agar plate without antibiotic, grow overnight in 37℃ incubator
Day2
Pick a single colony and inoculate into 3ml LB broth, grow o/n in 37℃ shaker
Prepare & autoclave 500ml LB broth
Check if there is enough liquid nitrogen
Day3 Morning: pour the 3ml dense pre-culture into 500ml LB broth
Shake in 37C until OD600nm reach 0.8
[Melody's experience: it takes 4~5hrs]
Solution Needed
Wash Buffer I
800mM MgCl2 + 20mM CaCl2
Wash Buffer II
125mM CaCl2
Resuspend Buffer
85mM CaCl2 + 15% glycerol [filtered]
- pre-cool Wash Buffer I & Wash Buffer II in ice
- Pre-cool the centrifuge to 4C (with fixed angle rotor)
- Check the OD600nm of the 500ml culture
- Centrifuge the cells at 4000g for 5 mins, 4℃
- Discard the supernatant
- Gently resuspend the pellet in 20ml ice cold Wash Buffer I
- Put the samples on ice for 10 mins
- Centrifuge the cells at 4000g for 5 mins, 4℃
- Discard the supernatant
- Gently resuspend the pellet in 10ml ice cold Wash Buffer II
- Put the samples on ice for 10 mins
- Centrifuge the cells at 4000g for 5 mins, 4℃
- Discard the supernatant
- Resuspend cells in 20ml ice cold Resuspend Buffer
- Aliquot 200ul using sterile pre-chilled eppendorf tubes
Primer Design
Primers were designed manually using <a href="http://www.bioinformatics.org/sms2/pcr_primer_stats.html" target="_blank">PCR Primer Stats</a> of Sequence Manipulation Suite, for analyzing secondary structures and also annealing conditions.
PCR - Phusion DNA polymerase NEB
50ul reaction
Reactives | Volume(μL) |
---|---|
DNA template | 1 |
5x Phusion HF Buffer | 10 |
10mM dNTPs | 1.5 |
10uM Primer Fw | 0.5 |
10uM Primer Rv | 0.5 |
Phusion DNA polymerase | 0.25-0.5 |
100% DMSO | 1.5 |
dH2O | Up to 50 |
Total | 50 |
Cycling condition:
Initial Denaturation (1 cycle):
98°C 30 sec
Amplification (35 cycles):
98°C 10 sec
55-72 °C 30 sec
72°C 0.25- 0.5 min/kb
Final elongation (1 cycle)
72°C 3 min
PCR - LA Taq DNA polymerase Takara
50ul reaction
Reactives | Volume(μL) |
---|---|
DNA template | 1 |
10x LA taq Buffer | 5 |
10mM dNTPs | 1.5 |
10uM Primer Fw | 0.5 |
10uM Primer Rv | 0.5 |
LA taq polymerase | 0.25-0.5 |
100% DMSO | 1.5 |
dH2O | Up to 50 |
Total | 50 |
Cycling condition:
Initial Denaturation (1 cycle):
94°C 1 min
Amplification (30 cycles):
98°C 10 sec
55-72 °C 30 sec
68°C 0.5- 1 min/kb
Final elongation (1 cycle)
72°C 5 min
NEB Gibson assembly
We are using the Gibson Assembly® Master Mix of NEB Inc. according to the manufacturer directions.
Double Digestion of DNA with 2 different restriction enzymes NEB
30μl reaction
Reactives | Volume(μL) |
---|---|
DNA | Up to 1 μg |
CutSmart™ Buffer | 3 |
EcoRI-HF®* | 1 |
SpeI/PstI/XbaI* | 1 |
dH2O | Up to 30μL |
Total | 30 |
Incubate at 37 °C incubator or heat bath for 0.25 to 2 hours.
*For combinations of restriction enzymes other than the above, please kindly refer to Double Digest Finder from NEB Inc. for suitable buffer condition.
DNA ligation with T4 DNA ligase NEB
Reactives | Volume(μL) |
---|---|
T4 DNA ligase | 1 |
Buffer 10X | 2 |
Vector DNA | n pmol |
Insert DNA | 3n pmol |
dH2O | Up to 20μL |
Total | 20 |
Incubate at room temperature for 0.25 -1 hours.
</section>
<section id="notebook" class="group">
NOTEBOOK
JUNE
- Preparation of Competent Cells of dh5α and BL21, aliquot the competent cells, stored in liquid nitrogen and then -80C refrigerator.
- Transformation of: J23100-119 into dh5α
- Preparation of special medium and plate for A. vinelandii
- Make LB agar solution
- Study the growth curve characteristics of A. vinelandii
- Study the natural antibiotics resistance of A. vinelandii
- Make plate with antibiotics -Ampicillin, kanamycin and chloramphenicol.
- Preparation of Competent Cells of A. vinelandii
- Purchase for primers for the Carbon fixation system project.
- Primer dilution of the all carbon fixation system primers
- Amplification by using PCR, following by run gel of A. vinelandii nifB gene.
- Amplification by using PCR, following by run gel of A. vinelandii nifQ gene.
- Amplification by using PCR, following by run gel of A. vinelandii FdxA gene.
- Amplification by using PCR, following by run gel of Aquifex aeolicus mbhS3 gene.
- Amplification by using PCR, following by run gel of Aquifex aeolicus mbhL3 gene.
- Amplification by using PCR, following by run gel of E. coli SH3PDZ domain gene.
JULY
- Make plate with 2% hard agar with antibiotics- chloramphenicol.
- Make plate with antibiotics -Ampicillin.
- Overlapping PCR of A. vinelandii nifB gene, A. vinelandii nifQ gene and A. vinelandii FdxA gene
- Restriction of Overlapping PCR product A. vinelandii nifB-nifQ-FdA, ligase into double terminator plasmid and transform into dh5α.
- Overlapping PCR of Aquifex aeolicus mbhS3 gene and mbhL3 gene.
- Restriction of Overlapping PCR product Aquifex aeolicus mbhS3-L3, ligase into double terminator plasmid and transform into dh5α.
- Make LB agar solution
- Restriction of PCR product E. coli SH3PDZ domain gene, ligase into C backbone and transform into dh5α.
- Stable genome integration of J23100 into A. vinelandii and study its characteristics
- Purchase for primers for the Nitrogen- repressible T7 expression system.
- Arrival of synthetic sequences of A. vinelandii nitrogenase structural gene
- Try Gibson assembly of synthetic sequences of A. vinelandii nitrogenase structural gene
AUGUST
- Arrival of synthetic sequences of A. vinelandii nitrogenase accessory gene.
- Arrival of synthetic sequences of Aquifex aeolicus hydrogenase accessory gene.
- Arrival of all primers for the Nitrogen- repressible T7 expression system
- Primer dilution of the all Nitrogen- repressible T7 expression system primers
- Amplification by using PCR, following by run gel of A. vinelandii nifH gene.
- Amplification by using PCR, following by run gel of A. vinelandii nifK gene
- Amplification by using PCR, following by run gel of A. vinelandii nifH gene with strong rbs.
- Amplification by using PCR, following by run gel of A. vinelandii nifH gene with weak rbs.
- Transformation of T7 RNA polymerase and T7 promoter into dh5α.
- Amplification by using PCR, following by run gel of BL21 T7 RNA polymerase.
- Overlapping PCR of A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase.
- Overlapping PCR of A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase.
- Amplification by using oligo PCR, following by run gel of random sequence
- Transformation of ptet- mRFP-d.t. and mRFP-d.t. into dh5α.
- Amplification by using oligo PCR, following by run gel of part of mRFP
- Restriction of PCR product random sequence, ligase into ptet- mRFP-d.t. plasmid and transform into dh5α.
- Transformation of amilcp-d.t. into dh5α.
- Restriction of PCR product nifH, ligase into mRFP-d.t. plasmid and transform into dh5α.
September
- Try Gibson Assembly of synthetic sequences of A. vinelandii nitrogenase accessory gene.
- Try Gibson Assembly of synthetic sequences of Aquifex aeolicus hydrogenase accessory gene.
- Restriction of PCR product A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase, ligase into double terminator plasmid and transform into dh5α.
- Restriction of PCR product A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase, ligase into double terminator plasmid and transform into dh5α.
- Restriction of biobrick A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase-double terminator ligase into random sequence with ptet-mRFP-d.t. and transform into dh5α.
- Restriction of biobrick A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase-double terminator ligase into random sequence with ptet-mRFP-d.t. and transform into dh5α.
- Restriction of PCR product A. vinelandii nifK gene,ligase into biobrick A. vinelandii nifH gene with strong rbs and BL21 T7 RNA polymerase-double terminator and random sequence with ptet-mRFP-d.t. and transform into dh5α.
- Restriction of PCR product A. vinelandii nifK gene,ligase into biobrick A. vinelandii nifH gene with weak rbs and BL21 T7 RNA polymerase-double terminator and random sequence with ptet-mRFP-d.t. and transform into dh5α.
- Restriction of PCR product A. vinelandii nifK gene, ligase into C back bone and transform into dh5α.
- Restriction of PCR product A. vinelandii nifH gene, ligase into C back bone and transform into dh5α.
- Restriction of PCR product part of mRFP, ligase into C back bone and transform into dh5α.
- Restriction of BBa_K1314013, ligase into A backbone and transform into dh5α.
- Restriction of BBa_K1314014, ligase into A backbone and transform into dh5α.
- Restriction of PCR product part of mRFP, ligase into amilcp- d.t. and transform into dh5α.
- Restriction of PCR product, random sequence, ligase into T7 promoter and transform into dh5 α.
- Restriction of biobrick random sequence- T7 promoter, ligase into C backbone and transform into dh5α
- Restriction of biobrick random sequence- T7 promoter, ligase into amilcp- d.t.-part of mRFP, and transform into dh5α.
- Send all biobricks to sequencing
- Transformation of BBa_K1314011 into BL21.
- Stable genome integration of BBa_K1314013 into A. vinelandii
- Stable genome integration of BBa_K1314014 into A. vinelandii
- Stable genome integration of BBa_K1314011 into A. vinelandii
- Blunt end ligation and transformation to make BBa_K1314015
October
</section>
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