Team:Evry/Notebook/w6
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- | <h1>Week 6: 22nd July - 28th July</h1> | + | <h1>Week 6: 22nd July -th 28th July</h1> |
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<h2> Monday, July 22nd </h2> | <h2> Monday, July 22nd </h2> | ||
- | + | We did a PCR on the seven products of golden gate 1 using the VR and VF2 primers. We mixed : | |
+ | - 10 uL of One Taq Buffer 10X | ||
+ | - 1 uL of 10 mM dNTPs | ||
+ | - 1 uL of each VF2 and VR primers | ||
+ | - 35,5 uL of H2O | ||
+ | - 1 uL of the One Taq enzyme | ||
+ | - 1 uL of the golden gate products | ||
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+ | We used the following PCR program : | ||
+ | - 95°C for 3 min | ||
+ | 29 x ( - 95°C for 15 sec | ||
+ | - 55°C for 30 sec | ||
+ | - 68°C for 2 min ) | ||
+ | - 68°C for 10 min | ||
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+ | The gel migration didn't reveal any band. We supposed that it didn't work due to the annealing temperature we used. | ||
+ | Indeed, with the help of the Tm Calculator website, we found that the optimal annealing temperature for those primers was 53°C. | ||
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<h2> Tuesday, July 23rd </h2> | <h2> Tuesday, July 23rd </h2> | ||
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+ | In order to test the best annealing temperature for our following PCRs, we did a PCR on our 5 first golden gate products with two different annealing temperature : 53 or 51°C. We also prepared two positiv controls for each conditions with either bacteria transformed by empty PSB1A3 plasmid or 1 uL of the miniprep plasmid. This was realised in order to verify if the problem of our first PCR was due to a bad lysis of our bacteria. What is more, we prepared one negativ control with an annealing temperature of 55°C. | ||
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+ | (Mettre photo gel) | ||
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+ | According to our results, we can assume that our first PCR was badly realised due to an error of manipulation and not because of the annealing temperature we used. | ||
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+ | In the meantime, we did the Golden Gate 1 again in order to obtain better ligation results. We transformed TOP 10 E. coli with the golden gate products and plated them on LB-Agar with carbenicillin antibiotic. | ||
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<h2> Wednesday, July 24th </h2> | <h2> Wednesday, July 24th </h2> | ||
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<h2> Thursday, July 25th </h2> | <h2> Thursday, July 25th </h2> |
Revision as of 15:34, 31 July 2013