Fong:PCR

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Preparation

• Prepare DNA from cell sample during mid-log phase, or as extraction kit designates.
• Use Spectrophotometer to determine concentration and total amount of extracted DNA.

Program Thermocycler

• Use standard program.
• Use T_annealing that is 5°C lower than the smallest T_m of the primers.
• Use final extension time of 1 min.
• May use extended primary melting time, to ensure full denaturation of template.
• Use at least 30s to one min extension cycle per kb of product.

PCR Taq Mix

Taq Mix

Name	Volume
Taq buffer	2.5 μL
dNTP	0.5 μL
F-primer (25nM)	1.25 μL
R-primer (25nM)	1.25 μL
Mg2+	0	0.5	1.0	1.5
Taq	0.2	0.2	0.2	0.2
H2O	17.3	16.8	16.3	15.8
DNA	2	2	2	2
Total V	25 μL

1. Add all reagents to labeled PCR reaction tube, adding Taq polymerase last.
2. Place in the thermocycler and select cycle, making any changes as noted above.
3. Run PCR reaction.
4. Enjoy your brand-new DNA!
5. ????
6. PROFT

• Be sure to run at least four varying Mg²⁺ concentrations in order to optimize yield and fidelity.
• Run a gel using some product and product digestion to verify fragment size and proper restriction sites.

PCR Phusion High-Fidelity Polymerase Mix

Phusion Mix

Name	Volume
Phusion buffer	5 μL
dNTP	0.2 μL
F-primer (25nM)	0.5 μL
R-primer (25nM)	0.5 μL
Phusion Polymerase	0.25 μL
DNA	1 μL
DMSO	0.75 μL
Mg2+	0	0.5	1.0 μL
H2O	16.8	16.3	15.8 μL
Total V	25 μL

1. Add all reagents to labeled PCR reaction tube, adding Phusion polymerase last.
2. Place in the thermocycler and select cycle, making any changes as noted above.
3. Run PCR reaction.
4. Enjoy your brand-new DNA!
5. ????
6. PROFT

• Be sure to run varying Mg²⁺ concentrations in order to optimize yield and fidelity.
• Run a gel using some product and template to verify fragment size and proper restriction sites.

References

Contact

Yu Deng