Team:TzuChiU Formosa/Protocol
From 2009.igem.org
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- | ==== | + | ==== PCR ==== |
- | 1. | + | 1. Dissolve the primers in water to have the concentration of 10nM. |
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- | + | 2. PCR reaction mixer: | |
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Template DNA(10ng/μl) 5 | Template DNA(10ng/μl) 5 | ||
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Total 20 μl | Total 20 μl | ||
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- | + | 3. Put the reaction mixer in a PCR tube. | |
- | + | 4.The PCR program is as follow : | |
- | :''' | + | :'''4.1''' |
:94℃ 30 seconds | :94℃ 30 seconds | ||
:60℃ 30seconds | :60℃ 30seconds | ||
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- | :''' | + | :'''4.2''' |
:94℃ 30 seconds | :94℃ 30 seconds | ||
:55℃ 30seconds | :55℃ 30seconds | ||
:72℃ 2 minutes | :72℃ 2 minutes | ||
:Cycle 34 times | :Cycle 34 times | ||
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+ | Extend PCR product at 72℃ for 10 minutes | ||
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+ | 5. The PCR product was examed by electrophoresis in 1% agarose. | ||
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- | Take an eppendorf | + | Take an eppendorf tube and add following component one by one and mix well,incubated at 4℃ overnight. |
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- | ====Cloning PCR==== | + | ====Cloning PCR(To verify the presence of our gene of interest)==== |
- | # | + | #Take 10μl of bacterial culture, spin down at 14000 rpm for 10 min. |
#Discard the supernatant | #Discard the supernatant | ||
- | #Add 500μl ddH20, | + | #Add 500μl ddH20, Vortex |
- | # | + | #Boil for 20 min. |
- | # | + | #Take 5μl of above bacterial lysate, and add 10x dNTP 2μl, 10x Buffer 2μl, forward primer(10μM)0.5μl reverse primer(10μM)0.5μl, Taq DNA polymerase 0.1μl, ddH20 |
#Use the PCR to amplify our product:PCR program | #Use the PCR to amplify our product:PCR program | ||
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Cycle 34 times | Cycle 34 times | ||
25℃ 2 min | 25℃ 2 min | ||
- | 7. The PCR | + | 7. The PCR product was examed by electrophoresis in 1% agarose. |
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Revision as of 13:48, 20 October 2009
Contents |
Protocol
Tansformation Protocol
- Take the cp919 competent cell in an eppendorf tube from -80℃ freezer put in ice.
- Add 4ul plasmid to competent cell and place in ice for 30 minutes.
- Put the transformed cells into 42℃ water bath for 90 seconds.
- Then place the cells in ice for 2 minutes.
- Add 1ml LB to the cells and mixed.
- Put the eppendorf tube in 37℃ water bath and incubate for an hour.
- Spin down at 7000 rpm for 5 minutes and remove most of the supernatant.
- While the cells are incubated at 37℃ water bath spread 100ul Ampicilin(50mg/ml) on the plate. When the plate is dried, spread bacteria on the plate.
- Incubate at 37℃ incubater for 16~18 hours.
Competent Cell (CP919-Cph8)
- Day1. Streak out the E.coli strain on an LB plate (with kanamycin)and incubate at 37℃ overnight (16-20 hours).
- Day2. Select a single colony and inoculate 10 ml sterile LB and grow overnight (16-20 hours) in a 37℃ shaker incubator.
- Day3. Add 2ml overnight culture to 250ml flask containing 100 ml LB.
- Grow the cultures to OD600 = 0.2~0.4 (incubate with shaking for 75~90 min.)
- Spin down the bacteria at 4℃,3000 rpm for 10 min.
- Discard the supernatant and mix the cell pellet with 10ml FSB.
- Keep the cells on ice for 3~4 hours.
- Spin down, at 4℃,3000 rpm for 10 min.
- Discard the supernatant and mix the cell pellet with 5ml FSB.
- Pipet 200μl of the cell suspension into sterile 1.5ml eppendorf tubes. Freeze these tubes in liquid nitrogen, then transfer them to -80℃ freezer.
PCR
1. Dissolve the primers in water to have the concentration of 10nM.
2. PCR reaction mixer:
Template DNA(10ng/μl) 5 10× PCR buffer 2 10× dNTP(2mM) 2 forward primer(10μM) 0.5 reverse primer(10μM) 0.5 Pfu DNA polymerase(2Kb) 0.1 PCR water 9.9 _______________________________________ Total 20 μl
3. Put the reaction mixer in a PCR tube.
4.The PCR program is as follow :
- 4.1
- 94℃ 30 seconds
- 60℃ 30seconds
- 72℃ 2 minutes
- Cycle 9 times
- 4.2
- 94℃ 30 seconds
- 55℃ 30seconds
- 72℃ 2 minutes
- Cycle 34 times
Extend PCR product at 72℃ for 10 minutes
5. The PCR product was examed by electrophoresis in 1% agarose.
T-A cloning protocol
Take an eppendorf tube and add following component one by one and mix well,incubated at 4℃ overnight.
2x ligase buffer 7.5μl Insert(Aeq.-GFP) 5.5μl Vector(pGEM-T-easy) 1μl T4 DNA exp 3/12 1μl _________________________________ total 15μl
Cloning PCR(To verify the presence of our gene of interest)
- Take 10μl of bacterial culture, spin down at 14000 rpm for 10 min.
- Discard the supernatant
- Add 500μl ddH20, Vortex
- Boil for 20 min.
- Take 5μl of above bacterial lysate, and add 10x dNTP 2μl, 10x Buffer 2μl, forward primer(10μM)0.5μl reverse primer(10μM)0.5μl, Taq DNA polymerase 0.1μl, ddH20
- Use the PCR to amplify our product:PCR program
95℃ 4 min 94℃ 30seconds 55℃ 40seconds 72℃ 2 min Cycle 34 times 25℃ 2 min
7. The PCR product was examed by electrophoresis in 1% agarose.