Team:SupBiotech-Paris/Material & Method

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== Electrophoresis ==
== Electrophoresis ==
-
=== Materials ===
+
=== Material ===
-
DNA Template<br>
+
<ul>
-
Loading buffer<br>
+
<li>DNA Template<br>
-
Molecular size marker<br>
+
<li>Loading buffer<br>
-
TAE 1X Buffer<br>
+
<li>Molecular size marker<br>
-
Ethidium Bromide (BET) <br>
+
<li>TAE 1X Buffer<br>
-
Agarose<br>
+
<li>Ethidium Bromide (BET) <br>
-
Detection and migration materials for an agarose gel electrophoresis<br>
+
<li>Agarose<br>
 +
<li>Detection and migration materials for an agarose gel electrophoresis<br>
 +
</ul>
=== Method ===
=== Method ===
-
1. Agarose gel preparation: <br>
+
<ol>
-
a) For BioBricks: <br>
+
<li>Agarose gel preparation: <br>
 +
<ul>
 +
<li>For BioBricks: <br>
Prepare a 2% agarose gel (1.5 grams of agarose in 100mL of bi distilled H2O + 15µL of BET). <br>
Prepare a 2% agarose gel (1.5 grams of agarose in 100mL of bi distilled H2O + 15µL of BET). <br>
-
b) To isolate DNA from a lambda phage: <br>
+
<li>To isolate DNA from a lambda phage: <br>
Prepare a 0.7% agarose gel (0.4 grams of agarose in 100mL of bi distilled H2O + 15µL of BET). <br>
Prepare a 0.7% agarose gel (0.4 grams of agarose in 100mL of bi distilled H2O + 15µL of BET). <br>
-
2. Heat agarose in a microwave 5 to 10 minutes. <br>
+
</ul>
-
3. Prepare the electrophoresis plate. <br>
+
<li>Heat agarose in a microwave 5 to 10 minutes. <br>
 +
<li>Prepare the electrophoresis plate. <br>
Ensure water tightness of the plate. <br>
Ensure water tightness of the plate. <br>
-
4. Add the TAE 1X buffer until the agarose gel is covered. <br>
+
<li>Add the TAE 1X buffer until the agarose gel is covered. <br>
-
5. Prepare the samples: <br>
+
<li>Prepare the samples: <br>
Mix 5µL of loading buffer for 15µL of DNA sample. <br>
Mix 5µL of loading buffer for 15µL of DNA sample. <br>
Prepare the molecular size marker if needed: <br>
Prepare the molecular size marker if needed: <br>
High range: 0.5µL of DNA + 1µL of loading buffer of the marker + 4.5µL of bi distilled H2O. <br>
High range: 0.5µL of DNA + 1µL of loading buffer of the marker + 4.5µL of bi distilled H2O. <br>
-
6. Vortex the sample then centrifuge it for 2 seconds. <br>
+
<li>Vortex the sample then centrifuge it for 2 seconds. <br>
-
7. Deposit delicately the samples and the molecular size marker. <br>
+
<li>Deposit delicately the samples and the molecular size marker. <br>
Do not use the wells located on the edges of the gel. <br>
Do not use the wells located on the edges of the gel. <br>
Deposit the molecular size marker in the center of the gel so as to ease the size analysis of the samples. <br>
Deposit the molecular size marker in the center of the gel so as to ease the size analysis of the samples. <br>
An 8 well plate has a capacity of about 45µL of sample. <br>
An 8 well plate has a capacity of about 45µL of sample. <br>
An15 well plate can hold 15µL of sample. <br>
An15 well plate can hold 15µL of sample. <br>
-
8. Place the electrodes in the electrophoresis tank in order for the DNA to migrate from the anode to the cathode. <br>
+
<li>Place the electrodes in the electrophoresis tank in order for the DNA to migrate from the anode to the cathode. <br>
-
9. Activate the migration of the gel from 85 volts to 130 volts during 45 to 80 minutes. <br>
+
<li>Activate the migration of the gel from 85 volts to 130 volts during 45 to 80 minutes. <br>
Check for the appearance of bubbles due to the electric current and that the DNA is migrating the right way. <br>
Check for the appearance of bubbles due to the electric current and that the DNA is migrating the right way. <br>
 +
</ol>
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<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Extraction of DNA from an agarose gel (Nucleospin Clontech) ==
== Extraction of DNA from an agarose gel (Nucleospin Clontech) ==
-
=== Materials ===
+
=== Material ===
-
30mL of NT buffer<br>
+
<ul>
-
14mL of NT3 buffer<br>
+
<li>30mL of NT buffer<br>
-
15mL of NE buffer<br>
+
<li>14mL of NT3 buffer<br>
-
50 Nucleospin Extract II columns<br>
+
<li>15mL of NE buffer<br>
-
50 Nucleospin collector tubes (2mL) <br>
+
<li>50 Nucleospin Extract II columns<br>
-
Sterile scalpel<br>
+
<li>50 Nucleospin collector tubes (2mL) <br>
-
Scales<br>
+
<li>Sterile scalpel<br>
-
Vortex<br>
+
<li>Scales<br>
-
Incubator (50°C/122°F) <br>
+
<li>Vortex<br>
-
A centrifuge (11000g) <br>
+
<li>Incubator (50°C/122°F) <br>
-
Sterile 1.5mL tubes<br>
+
<li>A centrifuge (11000g) <br>
-
 
+
<li>Sterile 1.5mL tubes<br>
 +
</ul>
=== Method ===
=== Method ===
-
1. Excise the fragment of agarose gel that contains the DNA fragment, with a scalpel, whilst being careful to remove as little gel as possible. <br>
+
<ol>
-
2. Determine the weight of the slice of gel and place it in a sterile tube. <br>
+
<li>Excise the fragment of agarose gel that contains the DNA fragment, with a scalpel, whilst being careful to remove as little gel as possible. <br>
-
3. For every 100mg of agarose gel add 200μL of NT buffer. <br>
+
<li>Determine the weight of the slice of gel and place it in a sterile tube. <br>
 +
<li>For every 100mg of agarose gel add 200μL of NT buffer. <br>
For gels containing more than 2% of agarose, double the volume of NT buffer. <br>
For gels containing more than 2% of agarose, double the volume of NT buffer. <br>
The maximum weight for a slice of gel, produced by NucleoSpin® Extract II, is 400mg or 200mg for high percentage gels (>2%), in this case, 2 steps are necessary (DNA linking steps: 6 and 7). <br>
The maximum weight for a slice of gel, produced by NucleoSpin® Extract II, is 400mg or 200mg for high percentage gels (>2%), in this case, 2 steps are necessary (DNA linking steps: 6 and 7). <br>
-
4. Place the samples at 50°C (122°F) in the incubator until the gel has dissolved (5-10min). <br>
+
<li>Place the samples at 50°C (122°F) in the incubator until the gel has dissolved (5-10min). <br>
-
5. Vortex briefly the sample every 2 to 3 min until the gel has completely dissolved. <br>
+
<li>Vortex briefly the sample every 2 to 3 min until the gel has completely dissolved. <br>
-
6. Place a NucleoSpin® Extract II column in a 2mL NucleoSpin collector tube and insert the sample, then centrifuge for 1 min at 11000g. <br>
+
<li>Place a NucleoSpin® Extract II column in a 2mL NucleoSpin collector tube and insert the sample, then centrifuge for 1 min at 11000g. <br>
-
7. Throw away the solution contained in the NucleoSpin collector tube and replace the NucleoSpin® Extract II column in the same NucleoSpin collector tube. <br>
+
<li>Throw away the solution contained in the NucleoSpin collector tube and replace the NucleoSpin® Extract II column in the same NucleoSpin collector tube. <br>
-
8. Add 600μL of NT3 buffer and centrifuge for 1 min at 11000g. <br>
+
<li>Add 600μL of NT3 buffer and centrifuge for 1 min at 11000g. <br>
-
9. Throw away the solution contained in the NucleoSpin collector tube and replace the NucleoSpin® Extract II column in the same NucleoSpin collector tube. <br>
+
<li>Throw away the solution contained in the NucleoSpin collector tube and replace the NucleoSpin® Extract II column in the same NucleoSpin collector tube. <br>
-
10. Centrifuge for 2 min at 11000g to get rid of all the NT3 buffer. <br>
+
<li>Centrifuge for 2 min at 11000g to get rid of all the NT3 buffer. <br>
Make sure that the NucleoSpin® Extract II column is not in contact with the eluted solution during centrifugation (in the NucleoSpin collector tube). <br>
Make sure that the NucleoSpin® Extract II column is not in contact with the eluted solution during centrifugation (in the NucleoSpin collector tube). <br>
The next reactions are inhibited by the residual ethanol from the NT3 buffer, so it must be entirely removed at this step. In addition to the centrifugation, placing the NucleoSpin® Extract II column in an incubator at 70°C (158°F) for 2-5 min before elution will ensure total retrieval of the ethanol. <br>
The next reactions are inhibited by the residual ethanol from the NT3 buffer, so it must be entirely removed at this step. In addition to the centrifugation, placing the NucleoSpin® Extract II column in an incubator at 70°C (158°F) for 2-5 min before elution will ensure total retrieval of the ethanol. <br>
-
11. Place the NucleoSpin® Extract II column in a fresh 1.5mL tube. <br>
+
<li>Place the NucleoSpin® Extract II column in a fresh 1.5mL tube. <br>
-
12. Add 15-50μL of NE elution buffer, then incubate at room temperature for 1 min to enhance the yield of the eluted DNA. <br>
+
<li>Add 15-50μL of NE elution buffer, then incubate at room temperature for 1 min to enhance the yield of the eluted DNA. <br>
-
13. Centrifuge for 1 min at 11000g. <br>
+
-
The yield of the large fragments (>5-10 kb) can be enhanced by using pre-heated elution buffer (70°C/158°F): for the elution, add the pre-heated elution buffers and incubate at room temperature for 1 min before collecting the elute by centrifugation. <br>
+
 +
<li>Centrifuge for 1 min at 11000g. <br>
 +
The yield of the large fragments (>5-10 kb) can be enhanced by using pre-heated elution buffer (70°C/158°F): for the elution, add the pre-heated elution buffers and incubate at room temperature for 1 min before collecting the elute by centrifugation. <br>
 +
</ol>
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<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Preparation of electrocompetent Escherichia coli ==
== Preparation of electrocompetent Escherichia coli ==
=== Material ===
=== Material ===
-
500µL of E.Coli culture in an LB culture medium<br>
+
<ul>
-
LB culture medium<br>
+
<li>500µL of E.Coli culture in an LB culture medium<br>
-
60mL of glycerol at 10%<br>
+
<li>LB culture medium<br>
-
Ethanol<br>
+
<li>60mL of glycerol at 10%<br>
-
Incubator with rotor<br>
+
<li>Ethanol<br>
-
Tank of ice<br>
+
<li>Incubator with rotor<br>
-
1.5mL tubes<br>
+
<li>Tank of ice<br>
-
50mL Falcon tubes<br>
+
<li>1.5mL tubes<br>
-
300mL tubes for the centrifuge<br>
+
<li>50mL Falcon tubes<br>
-
A refrigerated centrifuge at 4°C (39.2°F) <br>
+
<li>300mL tubes for the centrifuge<br>
-
+
<li>A refrigerated centrifuge at 4°C (39.2°F) <br>
 +
</ul>
=== Method ===
=== Method ===
-
0. Prepare a pre-culture of E.Coli in 5mL of LB culture medium (all night long at 37°C/39.2°F with rotation). <br>
+
<ol>
 +
<li>Prepare a pre-culture of E.Coli in 5mL of LB culture medium (all night long at 37°C/39.2°F with rotation). <br>
Prepare the centrifuge at 4°C (39.2°F). <br>
Prepare the centrifuge at 4°C (39.2°F). <br>
-
1. Place the pre-culture of E.Coli in 450mL of LB culture medium and incubate with agitation for 3 hours at 37°C (98.6°F). <br>
+
<li>Place the pre-culture of E.Coli in 450mL of LB culture medium and incubate with agitation for 3 hours at 37°C (98.6°F). <br>
-
2. Place 225mL of the solution in 2 centrifuge tubes. <br>
+
<li>Place 225mL of the solution in 2 centrifuge tubes. <br>
-
3. Place both tubes in the ice for 15 minutes. <br>
+
<li>Place both tubes in the ice for 15 minutes. <br>
-
4. Centrifuge at 2000g for 10 minutes at 4°C (39.2°F). <br>
+
<li>Centrifuge at 2000g for 10 minutes at 4°C (39.2°F). <br>
-
5. Throw away the supernatant and re-suspend delicately the pellet with 200mL of cold sterile water.
+
<li>Throw away the supernatant and re-suspend delicately the pellet with 200mL of cold sterile water.
Firstly add 10 to 20mL of cold sterile water and re-suspend by pipeting, and then add the other 200mL. <br>
Firstly add 10 to 20mL of cold sterile water and re-suspend by pipeting, and then add the other 200mL. <br>
-
6. Centrifuge at 2000g for 10 minutes at 4°C (39.2°F). <br>
+
<li>Centrifuge at 2000g for 10 minutes at 4°C (39.2°F). <br>
-
7. Throw away the supernatant and re-suspend delicately the pellet with 200mL of cold sterile water.
+
<li>Throw away the supernatant and re-suspend delicately the pellet with 200mL of cold sterile water.
Firstly add 10 to 20mL of cold sterile water and re-suspend by pipeting, and then add the other 200mL. <br>
Firstly add 10 to 20mL of cold sterile water and re-suspend by pipeting, and then add the other 200mL. <br>
-
8. Place the tubes in the ice for 30 minutes. <br>
+
<li>Place the tubes in the ice for 30 minutes. <br>
-
9. Centrifuge at 2000g for 15 minutes at 4°C (39.2°F). <br>
+
<li>Centrifuge at 2000g for 15 minutes at 4°C (39.2°F). <br>
-
10. Throw away the supernatant and re-suspend delicately the pellet with 25mL of glycerol at 10%.<br>
+
<li>Throw away the supernatant and re-suspend delicately the pellet with 25mL of glycerol at 10%.<br>
You may also transfer the solution into a 50mL Falcon tube. <br>
You may also transfer the solution into a 50mL Falcon tube. <br>
-
11. Place the tubes in the ice for 30 minutes. <br>
+
<li>Place the tubes in the ice for 30 minutes. <br>
-
12. Centrifuge at 1500g for 15 minutes at 4°C (39.2°F). <br>
+
<li>Centrifuge at 1500g for 15 minutes at 4°C (39.2°F). <br>
-
13. Throw away the supernatant and add 500µL of glycerol at 10%.<br>
+
<li>Throw away the supernatant and add 500µL of glycerol at 10%.<br>
-
14. Re-suspend the cells in a total volume of 1mL. <br>
+
<li>Re-suspend the cells in a total volume of 1mL. <br>
-
15. Aliquote 50µL per tube (tubes already in the ice). <br>
+
<li>Aliquote 50µL per tube (tubes already in the ice). <br>
-
16. Store at -80°C (-112°F). <br>
+
<li>Store at -80°C (-112°F). <br>
-
 
+
</ol>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Electroporation of electrocompetent Escherichia coli ==
== Electroporation of electrocompetent Escherichia coli ==
-
=== Materials ===
+
=== Material ===
-
Liquid LB medium<br>
+
<ul>
-
Solid LB medium (LB culture medium + agarose + specific antibiotics) <br>
+
<li>Liquid LB medium<br>
-
Frozen electro competent Escherichia coli bacteria (40µL in an eppendorf tube) <br>
+
<li>Solid LB medium (LB culture medium + agarose + specific antibiotics) <br>
 +
<li>Frozen electro competent Escherichia coli bacteria (40µL in an eppendorf tube) <br>
DNA<br>
DNA<br>
-
Tank full of ice<br>
+
<li>Tank full of ice<br>
-
Electroporation basin (2mm) <br>
+
<li>Electroporation basin (2mm) <br>
-
Electroporator<br>
+
<li>Electroporator<br>
-
Incubator with agitation incorporated<br>
+
<li>Incubator with agitation incorporated<br>
 +
</ul>
=== Method ===
=== Method ===
 +
<ol>
0. Place the electroporation basin in the ice. <br>
0. Place the electroporation basin in the ice. <br>
-
1. Leave the tube containing the bacteria (about 40µL) at room temperature, so as to unfreeze the medium. Then place it in the ice. <br>
+
<li>Leave the tube containing the bacteria (about 40µL) at room temperature, so as to unfreeze the medium. Then place it in the ice. <br>
-
2. Set the eclectroporator according to the following parameters: <br>
+
<li>Set the eclectroporator according to the following parameters: <br>
<div style="margin-left: 100px;">
<div style="margin-left: 100px;">
Voltage 2500 V<br>
Voltage 2500 V<br>
Line 139: Line 153:
Basin 2 mm<br>
Basin 2 mm<br>
</div>
</div>
-
3. Add 1µL of DNA solution in the tube containing the bacteria. <br>
+
<li>Add 1µL of DNA solution in the tube containing the bacteria. <br>
-
4. Place the tube in the ice for 1 minute. <br>
+
<li>Place the tube in the ice for 1 minute. <br>
-
5. Transfer the contents of the tube into the electroporation basin. <br>
+
<li>Transfer the contents of the tube into the electroporation basin. <br>
-
6. Dry the outside of the basin with paper towel. Place it in the specific compartment of the electroporator. <br>
+
<li>Dry the outside of the basin with paper towel. Place it in the specific compartment of the electroporator. <br>
-
7. Start the pulse. <br>
+
<li>Start the pulse. <br>
-
8. Add immediately 1mL of culture medium in the basin. <br>
+
<li>Add immediately 1mL of culture medium in the basin. <br>
Beware: a 3 minute delay reduces by 90% the effectiveness of the transformation. <br>
Beware: a 3 minute delay reduces by 90% the effectiveness of the transformation. <br>
-
9. Transfer the contents of the basin into a tube. Incubate the tube at 37°C (98.6°F) with agitation for an hour. <br>
+
<li>Transfer the contents of the basin into a tube. Incubate the tube at 37°C (98.6°F) with agitation for an hour. <br>
Soak the basins in bleach for a few minutes. Rinse them out thoroughly with tap water, then with bi distilled water and 70% ethanol (no acetone), before letting them dry. Thus they can be re-used. <br>
Soak the basins in bleach for a few minutes. Rinse them out thoroughly with tap water, then with bi distilled water and 70% ethanol (no acetone), before letting them dry. Thus they can be re-used. <br>
-
10. Place the bacteria on a solid LB medium for cultivation. <br>
+
<li>Place the bacteria on a solid LB medium for cultivation. <br>
-
 
+
</ol>
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<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Preparation of electrocompetent Mycobacterium ==
== Preparation of electrocompetent Mycobacterium ==
=== Material ===
=== Material ===
-
500μL of Mycobacterium culture at -80°C (-112°F) <br>
+
<ul>
-
Glycerol 10%<br>
+
<li>500μL of Mycobacterium culture at -80°C (-112°F) <br>
-
1.5mL tubes<br>
+
<li>Glycerol 10%<br>
-
Centrifuge<br>
+
<li>1.5mL tubes<br>
-
 
+
<li>Centrifuge<br>
 +
</ul>
=== Method ===
=== Method ===
 +
<ol>
0. All the mediums and the whole manipulation are done at room temperature. <br>
0. All the mediums and the whole manipulation are done at room temperature. <br>
-
1. Transfer the cells from your frozen sample into the centrifuge tubes. <br>
+
<li>Transfer the cells from your frozen sample into the centrifuge tubes. <br>
-
2. Centrifuge the cells at 3600 rpm for 10 min, then throw away the supernatant. <br>
+
<li>Centrifuge the cells at 3600 rpm for 10 min, then throw away the supernatant. <br>
-
3. Wash the cells with ½ a volume (25mL) of sterile 10% glycerol by pipetting slowly until the cell mass has been dissolved. <br>
+
<li>Wash the cells with ½ a volume (25mL) of sterile 10% glycerol by pipetting slowly until the cell mass has been dissolved. <br>
-
4. Wash and precipitate the cells as done in steps 2 and 3; with ¼ vol (12.5mL) of sterile 10% glycerol. <br>
+
<li>Wash and precipitate the cells as done in steps 2 and 3; with ¼ vol (12.5mL) of sterile 10% glycerol. <br>
-
5. Wash and precipitate the cells as done in steps 2 and 3; with ⅛ vol (6.75mL) of sterile 10% glycerol. <br>
+
<li>Wash and precipitate the cells as done in steps 2 and 3; with ⅛ vol (6.75mL) of sterile 10% glycerol. <br>
-
6. Wash and precipitate the cells as done in steps 2 and 3; with ⅟10 vol (5mL) of sterile 10% glycerol. <br>
+
<li>Wash and precipitate the cells as done in steps 2 and 3; with ⅟10 vol (5mL) of sterile 10% glycerol. <br>
-
7. Wash and precipitate the cells as done in steps 2 and 3; with ⅟25 vol (2mL) of sterile 10% glycerol. <br>
+
<li>Wash and precipitate the cells as done in steps 2 and 3; with ⅟25 vol (2mL) of sterile 10% glycerol. <br>
-
8. Aliquot 100µL of cells into the 1.5mL tubes. <br>
+
<li>Aliquot 100µL of cells into the 1.5mL tubes. <br>
-
9. Leave to cool quickly in an ice tank. <br>
+
<li>Leave to cool quickly in an ice tank. <br>
-
10. Store at -80°C (-112°F) or use immediately (the effectiveness of the electro-transfer is improved). <br>
+
<li>Store at -80°C (-112°F) or use immediately (the effectiveness of the electro-transfer is improved). <br>
-
 
+
</ol>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Electroporation of electrocompetent Mycobacterium ==
== Electroporation of electrocompetent Mycobacterium ==
-
=== Materials ===
+
=== Material ===
-
Liquid Loewenstein medium<br>
+
<ul>
-
Solid Loewenstein medium (congealed Loewenstein culture medium + adapted antibiotics) <br>
+
<li>Liquid Loewenstein medium<br>
-
Frozen electro competent mycobacterium (40µL in a tube) <br>
+
<li>Solid Loewenstein medium (congealed Loewenstein culture medium + adapted antibiotics) <br>
 +
<li>Frozen electro competent mycobacterium (40µL in a tube) <br>
DNA<br>
DNA<br>
-
Tank full of ice<br>
+
<li>Tank full of ice<br>
-
Electroporation basins (2mm) <br>
+
<li>Electroporation basins (2mm) <br>
-
Electroporator<br>
+
<li>Electroporator<br>
-
Incubator with agitation incorporated<br>
+
<li>Incubator with agitation incorporated<br>
 +
</ul>
=== Method ===
=== Method ===
 +
<ol>
0. Place the electroporation basin in the ice. <br>
0. Place the electroporation basin in the ice. <br>
-
1. Leave the tube containing the bacteria (about 40µL) at room temperature, so as to unfreeze the medium. Then place it in the ice. <br>
+
<li>Leave the tube containing the bacteria (about 40µL) at room temperature, so as to unfreeze the medium. Then place it in the ice. <br>
-
2. Set the eclectroporator according to the following parameters: <br>
+
<li>Set the eclectroporator according to the following parameters: <br>
<div style="margin-left: 100px;">
<div style="margin-left: 100px;">
Voltage 2500 V<br>
Voltage 2500 V<br>
Line 195: Line 214:
Basin 2 mm<br>
Basin 2 mm<br>
</div>
</div>
-
3. Add 1µL of DNA solution in the tube containing the bacteria. <br>
+
<li>Add 1µL of DNA solution in the tube containing the bacteria. <br>
-
4. Place the tube in the ice for 1 minute. <br>
+
<li>Place the tube in the ice for 1 minute. <br>
-
5. Transfer the contents of the tube into the electroporation basin. <br>
+
<li>Transfer the contents of the tube into the electroporation basin. <br>
-
6. Dry the outside of the basin with paper towel. Place it in the specific compartment of the eclectroporator. <br>
+
<li>Dry the outside of the basin with paper towel. Place it in the specific compartment of the eclectroporator. <br>
-
7. Start the pulse. <br>
+
<li>Start the pulse. <br>
-
8. Add immediately 1mL of culture medium in the basin. <br>
+
<li>Add immediately 1mL of culture medium in the basin. <br>
Beware: a 3 minute delay reduces by 90% the effectiveness of the transformation. <br>
Beware: a 3 minute delay reduces by 90% the effectiveness of the transformation. <br>
-
9. Transfer the contents of the basin into a tube. Incubate the tube at 37°C (98.6°F) with agitation for an hour. <br>
+
<li>Transfer the contents of the basin into a tube. Incubate the tube at 37°C (98.6°F) with agitation for an hour. <br>
Soak the basins in bleach for a few minutes. Rinse them out thoroughly with tap water, then with bi distilled water and 70% ethanol (no acetone), before letting them dry. Thus they can be re-used. <br>
Soak the basins in bleach for a few minutes. Rinse them out thoroughly with tap water, then with bi distilled water and 70% ethanol (no acetone), before letting them dry. Thus they can be re-used. <br>
-
10. Place the bacteria on a solid Loewenstein medium for cultivation. <br>
+
<li>Place the bacteria on a solid Loewenstein medium for cultivation. <br>
-
 
+
</ol>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Restriction ==
== Restriction ==
=== Material ===
=== Material ===
-
10µL of DNA (1µL for 0.5g of DNA) <br>
+
<ul>
-
3µL of restriction buffer (1X of the total volume) <br>
+
<li>10µL of DNA (1µL for 0.5g of DNA) <br>
-
1µL of restriction enzyme<br>
+
<li>3µL of restriction buffer (1X of the total volume) <br>
-
3µL of BSA (1X the total volume) <br>
+
<li>1µL of restriction enzyme<br>
-
15µL of sterile distilled water<br>
+
<li>3µL of BSA (1X the total volume) <br>
-
Total volume 30µL<br>
+
<li>15µL of sterile distilled water<br>
-
1.5mL tubes<br>
+
<li>Total volume 30µL<br>
-
 
+
<li>1.5mL tubes<br>
 +
</ul>
=== Method ===
=== Method ===
-
1. In a sterile eppendorf tube place 3µL of buffer. <br>
+
<ol>
-
2. Add DNA. <br>
+
<li>In a sterile eppendorf tube place 3µL of buffer. <br>
-
3. Add 3µL of BSA. <br>
+
<li>Add DNA. <br>
-
4. Then add 1µL of restriction enzyme. <br>
+
<li>Add 3µL of BSA. <br>
-
5. Complete with sterile distilled water. <br>
+
<li>Then add 1µL of restriction enzyme. <br>
 +
<li>Complete with sterile distilled water. <br>
TOTAL VOLUME = 30µL<br>
TOTAL VOLUME = 30µL<br>
-
6. Set the thermocycler according to the following parameters and place the tube inside: <br>
+
<li>Set the thermocycler according to the following parameters and place the tube inside: <br>
<div style="margin-left: 100px;">
<div style="margin-left: 100px;">
a. 1-2 hours at 37°C (98.6°F) <br>
a. 1-2 hours at 37°C (98.6°F) <br>
Line 232: Line 253:
</div>
</div>
NOTE: if you can leave the tube in the incubator for more than 6 hours for the restriction, leave it longer to obtain a better quality restriction! <br>
NOTE: if you can leave the tube in the incubator for more than 6 hours for the restriction, leave it longer to obtain a better quality restriction! <br>
-
 
+
</ol>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Linearization ==
== Linearization ==
=== Material ===
=== Material ===
-
DNA template<br>
+
<ul>
-
1µL of alkaline phosphatase<br>
+
<li>DNA template<br>
-
3µL of alkaline phosphatase buffer<br>
+
<li>1µL of alkaline phosphatase<br>
-
Pure water for a total volume of 30µL<br>
+
<li>3µL of alkaline phosphatase buffer<br>
-
A hotplate<br>
+
<li>Pure water for a total volume of 30µL<br>
-
1.5mL tubes<br>
+
<li>A hotplate<br>
-
+
<li>1.5mL tubes<br>
 +
</ul>
=== Method ===
=== Method ===
 +
<ol>
0. Prepare a hot tub at 37°C (98.6°F). <br>
0. Prepare a hot tub at 37°C (98.6°F). <br>
-
1. Add the alkaline phosphatase concentration 1X buffer in the DNA template, meaning 3µL of buffer for a final volume of 30µL. <br>
+
<li>Add the alkaline phosphatase concentration 1X buffer in the DNA template, meaning 3µL of buffer for a final volume of 30µL. <br>
-
2. Add 1µL of alkaline phosphatase. <br>
+
<li>Add 1µL of alkaline phosphatase. <br>
-
3. Incubate for 1 hour at 37°C (98.6°F). <br>
+
<li>Incubate for 1 hour at 37°C (98.6°F). <br>
-
4. Deactivate the alkaline phosphatase by heating for 5 minutes at 65°C (149°F). <br>
+
<li>Deactivate the alkaline phosphatase by heating for 5 minutes at 65°C (149°F). <br>
Proceed to the ligation just after the linearization. <br>
Proceed to the ligation just after the linearization. <br>
-
 
+
</ol>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== Ligation ==
== Ligation ==
=== Material ===
=== Material ===
-
3µL of 10X ligation buffer<br>
+
<ul>
-
1µL of T4 DNA Ligase<br>
+
<li>3µL of 10X ligation buffer<br>
-
100 to 1000µg of DNA insert solution<br>
+
<li>1µL of T4 DNA Ligase<br>
-
1µL of 0.05g/L DNA vector<br>
+
<li>100 to 1000µg of DNA insert solution<br>
-
Sterile water to obtain à final volume of 30µL<br>
+
<li>1µL of 0.05g/L DNA vector<br>
-
1.5mL tubes<br>
+
<li>Sterile water to obtain à final volume of 30µL<br>
-
 
+
<li>1.5mL tubes<br>
 +
</ul>
=== Method ===
=== Method ===
-
1. In a 1.5mL tube, place 2µL of ligation buffer. <br>
+
<ol>
-
2. Add the DNA insert as well as 1µL of vector. <br>
+
<li>In a 1.5mL tube, place 2µL of ligation buffer. <br>
-
3. Add 1µL of T4 DNA Ligase. <br>
+
<li>Add the DNA insert as well as 1µL of vector. <br>
-
4. Complete with sterile water to obtain a final volume of 30µL. <br>
+
<li>Add 1µL of T4 DNA Ligase. <br>
-
5. Let the reaction take place for 35 minutes at 22.5°C (72.5°F). <br>
+
<li>Complete with sterile water to obtain a final volume of 30µL. <br>
-
6. Denaturize the T4 DNA Ligase at 65°C (149°F) for 10 minutes. <br>
+
<li>Let the reaction take place for 35 minutes at 22.5°C (72.5°F). <br>
-
 
+
<li>Denaturize the T4 DNA Ligase at 65°C (149°F) for 10 minutes. <br>
 +
</ol>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
<span style="float: right">[[Team:SupBiotech-Paris/Material & Method#drapeau|Back to top]]</span>
== PCR (Promega Kit) ==
== PCR (Promega Kit) ==
=== Material ===
=== Material ===
-
DNA template<br>
+
<ul>
-
5’ to 3’ Primer<br>
+
<li>DNA template<br>
-
3’ to 5’ Primer<br>
+
<li>5’ to 3’ Primer<br>
-
GoTaq Hot Start Green Mix (Promega) <br>
+
<li>3’ to 5’ Primer<br>
-
Thermocycler<br>
+
<li>GoTaq Hot Start Green Mix (Promega) <br>
-
 
+
<li>Thermocycler<br>
 +
</ul>
=== Method ===
=== Method ===
1. Place the GoTaq Hot Start Green Mix kit at room temperature, vortex then centrifuge it briefly to concentrate the mix at the bottom of the tube. <br>
1. Place the GoTaq Hot Start Green Mix kit at room temperature, vortex then centrifuge it briefly to concentrate the mix at the bottom of the tube. <br>
 +
2. Prepare the following PCR mix:<br>
2. Prepare the following PCR mix:<br>
Line 312: Line 339:
6. Insert the preparation into the thermocycler, then launch the cycles: <br>
6. Insert the preparation into the thermocycler, then launch the cycles: <br>
-
 
Cycles:<br>
Cycles:<br>
Line 330: Line 356:
</a></div>
</a></div>
</html>
</html>
 +
 +
 +
=== Primers ===
 +
 +
==== D protein: ====
 +
 +
To extract the sequences from the full genome of the Lambda phage: <br>
 +
Forward : 5'-ATG-ACG-AGC-AAA-GAA-ACC-TT <br>
 +
Reverse : 5'-AAA-AAA-ATC-CCG-TAA-AAA-AAG-C <br>
 +
 +
To add BioBrick prefix and suffix: <br>
 +
Forward: 5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-TGA-CGA-GCA-AAG-AAA-CCT-TTA-CCC<br>
 +
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-AAA-AAA-ATC-CCG-TAA-AAA-AAG-CCG-C<br>
 +
 +
To add BalI sequence: <br>
 +
Reverse:  5'-AAT-GGC-CAA-AAA-AAA-TCC-CGT-AAA-AAA-AGC<br>
 +
 +
==== COS sequences: ====
 +
 +
To extract the sequences from the full genome of the Lambda phage: <br>
 +
Forward : 5'-TGG-CCT-CCA-CGC-ACG-TTG<br>
 +
Reverse : 5'-AGA-GGC-CAA-AAA-GCC-TCG-CTT-TC<br>
 +
 +
To add BioBrick prefix and suffix: <br>
 +
Forward:  5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-GGA-TAT-GTA-GAT-GAT-AAT-CAT-TAT-C<br>
 +
Reverse:  5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-AGA-GGC-CAA-AAA-GCC-TCG-CTT-T<br>
 +
 +
==== CI repressor: ====
 +
 +
To extract the sequences from the full genome of the Lambda phage: <br>
 +
Forward : 5'-AAT-TCA-ATC-CAT-TTA-CTA-TGT-TAT-GT<br>
 +
Reverse : 5'-ATG-AGC-ACA-AAA-AAG-AAA-CC<br>
 +
 +
To add BioBrick prefix and suffix: <br>
 +
Forward:  5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-GAA-TTC-AAT-CCA-TTT-ACT-ATG-TTA-TG<br>
 +
Reverse:  5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-ATG-AGC-ACA-AAA-AAG-AAA-CCA-TTA-A<br>
 +
 +
 +
==== Adenovirus penton based: ====
 +
 +
To extract the sequences from the full genome of the Lambda phage: <br>
 +
Forward : 5'-ATG-CGG-CGC-GCG-GCG-ATG<br>
 +
Reverse : 5'-TCA-AAA-AGT-GCG-GCT-CGA-TAG-GAC-G<br>
 +
 +
To add BioBrick prefix and suffix: <br>
 +
Forward:  5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-TGC-GGC-GCG-CGG-CGA-TGT-A<br>
 +
Reverse:  5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-TCA-AAA-AGT-GCG-GCT-CGA-TAG-G<br>
 +
 +
To add BalI sequence: <br>
 +
Forward: 5'-AAT-GGC-CAA-TGC-GGC-GCG-CGG-CGA-TG<br>
 +
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-TCA-AAA-AGT-GCG-G<br>
 +
 +
==== BioBrick ====
 +
 +
To amplify BioBrick prefix and suffix: <br>
 +
Prefix for sequences which begin by ATG <br>
 +
5'-GAA-TTC-GCG-GCC-GCT-TCT-AG<br>
 +
Prefix for sequences which not begin by ATG <br>
 +
5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-G<br>
 +
Suffix: <br>
 +
5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA<br>

Latest revision as of 02:53, 22 October 2009

framless


Contents

Electrophoresis

Material

  • DNA Template
  • Loading buffer
  • Molecular size marker
  • TAE 1X Buffer
  • Ethidium Bromide (BET)
  • Agarose
  • Detection and migration materials for an agarose gel electrophoresis

Method

  1. Agarose gel preparation:
    • For BioBricks:
      Prepare a 2% agarose gel (1.5 grams of agarose in 100mL of bi distilled H2O + 15µL of BET).
    • To isolate DNA from a lambda phage:
      Prepare a 0.7% agarose gel (0.4 grams of agarose in 100mL of bi distilled H2O + 15µL of BET).
  2. Heat agarose in a microwave 5 to 10 minutes.
  3. Prepare the electrophoresis plate.
    Ensure water tightness of the plate.
  4. Add the TAE 1X buffer until the agarose gel is covered.
  5. Prepare the samples:
    Mix 5µL of loading buffer for 15µL of DNA sample.
    Prepare the molecular size marker if needed:
    High range: 0.5µL of DNA + 1µL of loading buffer of the marker + 4.5µL of bi distilled H2O.
  6. Vortex the sample then centrifuge it for 2 seconds.
  7. Deposit delicately the samples and the molecular size marker.
    Do not use the wells located on the edges of the gel.
    Deposit the molecular size marker in the center of the gel so as to ease the size analysis of the samples.
    An 8 well plate has a capacity of about 45µL of sample.
    An15 well plate can hold 15µL of sample.
  8. Place the electrodes in the electrophoresis tank in order for the DNA to migrate from the anode to the cathode.
  9. Activate the migration of the gel from 85 volts to 130 volts during 45 to 80 minutes.
    Check for the appearance of bubbles due to the electric current and that the DNA is migrating the right way.

Back to top

Extraction of DNA from an agarose gel (Nucleospin Clontech)

Material

  • 30mL of NT buffer
  • 14mL of NT3 buffer
  • 15mL of NE buffer
  • 50 Nucleospin Extract II columns
  • 50 Nucleospin collector tubes (2mL)
  • Sterile scalpel
  • Scales
  • Vortex
  • Incubator (50°C/122°F)
  • A centrifuge (11000g)
  • Sterile 1.5mL tubes

Method

  1. Excise the fragment of agarose gel that contains the DNA fragment, with a scalpel, whilst being careful to remove as little gel as possible.
  2. Determine the weight of the slice of gel and place it in a sterile tube.
  3. For every 100mg of agarose gel add 200μL of NT buffer.
    For gels containing more than 2% of agarose, double the volume of NT buffer.
    The maximum weight for a slice of gel, produced by NucleoSpin® Extract II, is 400mg or 200mg for high percentage gels (>2%), in this case, 2 steps are necessary (DNA linking steps: 6 and 7).
  4. Place the samples at 50°C (122°F) in the incubator until the gel has dissolved (5-10min).
  5. Vortex briefly the sample every 2 to 3 min until the gel has completely dissolved.
  6. Place a NucleoSpin® Extract II column in a 2mL NucleoSpin collector tube and insert the sample, then centrifuge for 1 min at 11000g.
  7. Throw away the solution contained in the NucleoSpin collector tube and replace the NucleoSpin® Extract II column in the same NucleoSpin collector tube.
  8. Add 600μL of NT3 buffer and centrifuge for 1 min at 11000g.
  9. Throw away the solution contained in the NucleoSpin collector tube and replace the NucleoSpin® Extract II column in the same NucleoSpin collector tube.
  10. Centrifuge for 2 min at 11000g to get rid of all the NT3 buffer.
    Make sure that the NucleoSpin® Extract II column is not in contact with the eluted solution during centrifugation (in the NucleoSpin collector tube).
    The next reactions are inhibited by the residual ethanol from the NT3 buffer, so it must be entirely removed at this step. In addition to the centrifugation, placing the NucleoSpin® Extract II column in an incubator at 70°C (158°F) for 2-5 min before elution will ensure total retrieval of the ethanol.
  11. Place the NucleoSpin® Extract II column in a fresh 1.5mL tube.
  12. Add 15-50μL of NE elution buffer, then incubate at room temperature for 1 min to enhance the yield of the eluted DNA.
  13. Centrifuge for 1 min at 11000g.
    The yield of the large fragments (>5-10 kb) can be enhanced by using pre-heated elution buffer (70°C/158°F): for the elution, add the pre-heated elution buffers and incubate at room temperature for 1 min before collecting the elute by centrifugation.

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Preparation of electrocompetent Escherichia coli

Material

  • 500µL of E.Coli culture in an LB culture medium
  • LB culture medium
  • 60mL of glycerol at 10%
  • Ethanol
  • Incubator with rotor
  • Tank of ice
  • 1.5mL tubes
  • 50mL Falcon tubes
  • 300mL tubes for the centrifuge
  • A refrigerated centrifuge at 4°C (39.2°F)

Method

  1. Prepare a pre-culture of E.Coli in 5mL of LB culture medium (all night long at 37°C/39.2°F with rotation).
    Prepare the centrifuge at 4°C (39.2°F).
  2. Place the pre-culture of E.Coli in 450mL of LB culture medium and incubate with agitation for 3 hours at 37°C (98.6°F).
  3. Place 225mL of the solution in 2 centrifuge tubes.
  4. Place both tubes in the ice for 15 minutes.
  5. Centrifuge at 2000g for 10 minutes at 4°C (39.2°F).
  6. Throw away the supernatant and re-suspend delicately the pellet with 200mL of cold sterile water. Firstly add 10 to 20mL of cold sterile water and re-suspend by pipeting, and then add the other 200mL.
  7. Centrifuge at 2000g for 10 minutes at 4°C (39.2°F).
  8. Throw away the supernatant and re-suspend delicately the pellet with 200mL of cold sterile water. Firstly add 10 to 20mL of cold sterile water and re-suspend by pipeting, and then add the other 200mL.
  9. Place the tubes in the ice for 30 minutes.
  10. Centrifuge at 2000g for 15 minutes at 4°C (39.2°F).
  11. Throw away the supernatant and re-suspend delicately the pellet with 25mL of glycerol at 10%.
    You may also transfer the solution into a 50mL Falcon tube.
  12. Place the tubes in the ice for 30 minutes.
  13. Centrifuge at 1500g for 15 minutes at 4°C (39.2°F).
  14. Throw away the supernatant and add 500µL of glycerol at 10%.
  15. Re-suspend the cells in a total volume of 1mL.
  16. Aliquote 50µL per tube (tubes already in the ice).
  17. Store at -80°C (-112°F).

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Electroporation of electrocompetent Escherichia coli

Material

  • Liquid LB medium
  • Solid LB medium (LB culture medium + agarose + specific antibiotics)
  • Frozen electro competent Escherichia coli bacteria (40µL in an eppendorf tube)
    DNA
  • Tank full of ice
  • Electroporation basin (2mm)
  • Electroporator
  • Incubator with agitation incorporated

Method

    0. Place the electroporation basin in the ice.
  1. Leave the tube containing the bacteria (about 40µL) at room temperature, so as to unfreeze the medium. Then place it in the ice.
  2. Set the eclectroporator according to the following parameters:

    Voltage 2500 V
    Capacitance 25 µF
    Resistance 200 Ω
    Basin 2 mm

  3. Add 1µL of DNA solution in the tube containing the bacteria.
  4. Place the tube in the ice for 1 minute.
  5. Transfer the contents of the tube into the electroporation basin.
  6. Dry the outside of the basin with paper towel. Place it in the specific compartment of the electroporator.
  7. Start the pulse.
  8. Add immediately 1mL of culture medium in the basin.
    Beware: a 3 minute delay reduces by 90% the effectiveness of the transformation.
  9. Transfer the contents of the basin into a tube. Incubate the tube at 37°C (98.6°F) with agitation for an hour.
    Soak the basins in bleach for a few minutes. Rinse them out thoroughly with tap water, then with bi distilled water and 70% ethanol (no acetone), before letting them dry. Thus they can be re-used.
  10. Place the bacteria on a solid LB medium for cultivation.

Back to top

Preparation of electrocompetent Mycobacterium

Material

  • 500μL of Mycobacterium culture at -80°C (-112°F)
  • Glycerol 10%
  • 1.5mL tubes
  • Centrifuge

Method

    0. All the mediums and the whole manipulation are done at room temperature.
  1. Transfer the cells from your frozen sample into the centrifuge tubes.
  2. Centrifuge the cells at 3600 rpm for 10 min, then throw away the supernatant.
  3. Wash the cells with ½ a volume (25mL) of sterile 10% glycerol by pipetting slowly until the cell mass has been dissolved.
  4. Wash and precipitate the cells as done in steps 2 and 3; with ¼ vol (12.5mL) of sterile 10% glycerol.
  5. Wash and precipitate the cells as done in steps 2 and 3; with ⅛ vol (6.75mL) of sterile 10% glycerol.
  6. Wash and precipitate the cells as done in steps 2 and 3; with ⅟10 vol (5mL) of sterile 10% glycerol.
  7. Wash and precipitate the cells as done in steps 2 and 3; with ⅟25 vol (2mL) of sterile 10% glycerol.
  8. Aliquot 100µL of cells into the 1.5mL tubes.
  9. Leave to cool quickly in an ice tank.
  10. Store at -80°C (-112°F) or use immediately (the effectiveness of the electro-transfer is improved).

Back to top

Electroporation of electrocompetent Mycobacterium

Material

  • Liquid Loewenstein medium
  • Solid Loewenstein medium (congealed Loewenstein culture medium + adapted antibiotics)
  • Frozen electro competent mycobacterium (40µL in a tube)
    DNA
  • Tank full of ice
  • Electroporation basins (2mm)
  • Electroporator
  • Incubator with agitation incorporated

Method

    0. Place the electroporation basin in the ice.
  1. Leave the tube containing the bacteria (about 40µL) at room temperature, so as to unfreeze the medium. Then place it in the ice.
  2. Set the eclectroporator according to the following parameters:

    Voltage 2500 V
    Capacitance 25 µF
    Resistance 1000 Ω
    Basin 2 mm

  3. Add 1µL of DNA solution in the tube containing the bacteria.
  4. Place the tube in the ice for 1 minute.
  5. Transfer the contents of the tube into the electroporation basin.
  6. Dry the outside of the basin with paper towel. Place it in the specific compartment of the eclectroporator.
  7. Start the pulse.
  8. Add immediately 1mL of culture medium in the basin.
    Beware: a 3 minute delay reduces by 90% the effectiveness of the transformation.
  9. Transfer the contents of the basin into a tube. Incubate the tube at 37°C (98.6°F) with agitation for an hour.
    Soak the basins in bleach for a few minutes. Rinse them out thoroughly with tap water, then with bi distilled water and 70% ethanol (no acetone), before letting them dry. Thus they can be re-used.
  10. Place the bacteria on a solid Loewenstein medium for cultivation.

Back to top

Restriction

Material

  • 10µL of DNA (1µL for 0.5g of DNA)
  • 3µL of restriction buffer (1X of the total volume)
  • 1µL of restriction enzyme
  • 3µL of BSA (1X the total volume)
  • 15µL of sterile distilled water
  • Total volume 30µL
  • 1.5mL tubes

Method

  1. In a sterile eppendorf tube place 3µL of buffer.
  2. Add DNA.
  3. Add 3µL of BSA.
  4. Then add 1µL of restriction enzyme.
  5. Complete with sterile distilled water.
    TOTAL VOLUME = 30µL
  6. Set the thermocycler according to the following parameters and place the tube inside:

    a. 1-2 hours at 37°C (98.6°F)
    b. 20 min at 80°C to inactivate the enzymes
    c. leave at 4°C until opening of the thermocycler.

    NOTE: if you can leave the tube in the incubator for more than 6 hours for the restriction, leave it longer to obtain a better quality restriction!

Back to top

Linearization

Material

  • DNA template
  • 1µL of alkaline phosphatase
  • 3µL of alkaline phosphatase buffer
  • Pure water for a total volume of 30µL
  • A hotplate
  • 1.5mL tubes

Method

    0. Prepare a hot tub at 37°C (98.6°F).
  1. Add the alkaline phosphatase concentration 1X buffer in the DNA template, meaning 3µL of buffer for a final volume of 30µL.
  2. Add 1µL of alkaline phosphatase.
  3. Incubate for 1 hour at 37°C (98.6°F).
  4. Deactivate the alkaline phosphatase by heating for 5 minutes at 65°C (149°F).
    Proceed to the ligation just after the linearization.

Back to top

Ligation

Material

  • 3µL of 10X ligation buffer
  • 1µL of T4 DNA Ligase
  • 100 to 1000µg of DNA insert solution
  • 1µL of 0.05g/L DNA vector
  • Sterile water to obtain à final volume of 30µL
  • 1.5mL tubes

Method

  1. In a 1.5mL tube, place 2µL of ligation buffer.
  2. Add the DNA insert as well as 1µL of vector.
  3. Add 1µL of T4 DNA Ligase.
  4. Complete with sterile water to obtain a final volume of 30µL.
  5. Let the reaction take place for 35 minutes at 22.5°C (72.5°F).
  6. Denaturize the T4 DNA Ligase at 65°C (149°F) for 10 minutes.

Back to top

PCR (Promega Kit)

Material

  • DNA template
  • 5’ to 3’ Primer
  • 3’ to 5’ Primer
  • GoTaq Hot Start Green Mix (Promega)
  • Thermocycler

Method

1. Place the GoTaq Hot Start Green Mix kit at room temperature, vortex then centrifuge it briefly to concentrate the mix at the bottom of the tube.

2. Prepare the following PCR mix:


a. For 25µL:

PCR25 eng.jpg


b. For 50µL :

PCR50 eng.jpg


c. For 100µL :

PCR100 eng.jpg


3. Add the components in the order listed in the table.

Be careful to insert the volume of primers and of DNA template correctly on the edge of the tube so as to visualize all the volumes that have been deposited.

4. Vortex the total volume.

5. « Start-Stop » Centrifuge (2 to 5 seconds).

If the thermocycler does not have a heating top, add 1 to 2 drops of sterile mineral oil.

6. Insert the preparation into the thermocycler, then launch the cycles:

Cycles:
PCRcycle eng.jpg


7. Check your PCR products by electrophoresis.


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Primers

D protein:

To extract the sequences from the full genome of the Lambda phage:
Forward : 5'-ATG-ACG-AGC-AAA-GAA-ACC-TT
Reverse : 5'-AAA-AAA-ATC-CCG-TAA-AAA-AAG-C

To add BioBrick prefix and suffix:
Forward: 5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-TGA-CGA-GCA-AAG-AAA-CCT-TTA-CCC
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-AAA-AAA-ATC-CCG-TAA-AAA-AAG-CCG-C

To add BalI sequence:
Reverse: 5'-AAT-GGC-CAA-AAA-AAA-TCC-CGT-AAA-AAA-AGC

COS sequences:

To extract the sequences from the full genome of the Lambda phage:
Forward : 5'-TGG-CCT-CCA-CGC-ACG-TTG
Reverse : 5'-AGA-GGC-CAA-AAA-GCC-TCG-CTT-TC

To add BioBrick prefix and suffix:
Forward: 5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-GGA-TAT-GTA-GAT-GAT-AAT-CAT-TAT-C
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-AGA-GGC-CAA-AAA-GCC-TCG-CTT-T

CI repressor:

To extract the sequences from the full genome of the Lambda phage:
Forward : 5'-AAT-TCA-ATC-CAT-TTA-CTA-TGT-TAT-GT
Reverse : 5'-ATG-AGC-ACA-AAA-AAG-AAA-CC

To add BioBrick prefix and suffix:
Forward: 5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-GAA-TTC-AAT-CCA-TTT-ACT-ATG-TTA-TG
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-ATG-AGC-ACA-AAA-AAG-AAA-CCA-TTA-A


Adenovirus penton based:

To extract the sequences from the full genome of the Lambda phage:
Forward : 5'-ATG-CGG-CGC-GCG-GCG-ATG
Reverse : 5'-TCA-AAA-AGT-GCG-GCT-CGA-TAG-GAC-G

To add BioBrick prefix and suffix:
Forward: 5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-TGC-GGC-GCG-CGG-CGA-TGT-A
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-TCA-AAA-AGT-GCG-GCT-CGA-TAG-G

To add BalI sequence:
Forward: 5'-AAT-GGC-CAA-TGC-GGC-GCG-CGG-CGA-TG
Reverse: 5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA-TCA-AAA-AGT-GCG-G

BioBrick

To amplify BioBrick prefix and suffix:
Prefix for sequences which begin by ATG
5'-GAA-TTC-GCG-GCC-GCT-TCT-AG
Prefix for sequences which not begin by ATG
5'-GAA-TTC-GCG-GCC-GCT-TCT-AGA-G
Suffix:
5'-CTG-CAG-CGG-CCG-CTA-CTA-GTA