User:Behzad Damadzadeh/Notebook/PcTF Subcloning in E-coli/2013/09/05: Difference between revisions
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==September 5, 2013== | ==September 5, 2013== | ||
* '''QuickChange Site Directed Mutagenesis of V0200 to remove | * '''QuickChange Site Directed Mutagenesis of V0200 to remove BSMBI cut site in the Hygro resistance sequence''' | ||
# Use 50 ng of dsDNA template [http://openwetware.org/wiki/User:Behzad_Damadzadeh/Notebook/PcTF_Subcloning_in_E-coli/2013/05/06 (BD002)] and 125 ng of each primer. | # Use 50 ng of dsDNA template [http://openwetware.org/wiki/User:Behzad_Damadzadeh/Notebook/PcTF_Subcloning_in_E-coli/2013/05/06 (BD002)] and 125 ng of each primer. | ||
# Template strands are about 7kb for BD002. | # Template strands are about 7kb for BD002. | ||
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| Total || 50.0 | | Total || 50.0 | ||
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*No control reaction, I will test the accuracy of the mutagenesis with | *No control reaction, I will test the accuracy of the mutagenesis with BSMBI restriction enzyme. | ||
* Add 1 μl of PfuTurbo DNA polymerase (2.5 U/μl) to the sample reaction | * Add 1 μl of PfuTurbo DNA polymerase (2.5 U/μl) to the sample reaction | ||
* Thermal cycling | * Thermal cycling | ||
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* DpnI Digest (gets rid of methylated template DNA) | * DpnI Digest (gets rid of methylated template DNA) | ||
* Add 1 μL DpnI enzyme to the reaction. | |||
* Gently and thoroughly mix the reaction, spin down in a microcentrifuge for 1 minute, and immediately incubate at 37°C for 1 hour to digest the parental supercoiled dsDNA | |||
'''Transformation''' | |||
* Add 1 μL DpnI enzyme to | * Transform 10μL of Dpn I treated DNA ftom the reaction tube to the 50μL aliquot of XL1-Blue supercompetent cells (Comes with the QuikChange Kit) '''No colony grow''' | ||
* Gently and thoroughly mix | * Transform 40μL of Dpn I-treated DNA from the reaction tube to the 50μL aliquot of DH5α-T. '''One colony grow''' | ||
* Transform | *Transform 1μL of control plasmid from the kit to 50μL of XL1-Blue supercompetent cells. '''100s colonies grow''' | ||
*''Do the traditional transformation process: 10minutes on ice, 45 seconds at 42°C, 1 minute on ice, add SOC and incubate 45 minutes at 37°C, Spin down the cells and resuspend the pallet with 100μL LB AMP broth, spread on AMP agar plate and incubate for 18 hours. '' | |||
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Revision as of 08:56, 13 October 2013
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September 5, 2013
Transformation
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