From 2011.igem.org
Protocols: Transformation
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NEB ([http://www.neb.com/nebecomm/products/protocol117.asp 10-beta] and [http://www.neb.com/nebecomm/products/protocol78.asp Turbo])
- Thaw a tube of NEB Turbo/NEB 10-beta Competent E.coli cells until the last ice crystals disappear. Mix gently and carefully pipette 50 uL of cells into a transformation tube on ice.
- Add 1-5 uL containing 1 pg-100 ng of plasmid DNA to the cell mixture. Carefully flick the tube 4-5 times to mix cells and DNA
- Place the mixture on ice for 30 minutes. Do not mix.
- Heat shock at exactly 42 C for exactly 30 seconds. Do not mix.
- Place on ice for 5 minutes. Do not mix.
- Pipette 950 uL of room temperature SOC into the mixture.
- Place at 37 C for 60 minutes. Shake vigorously (250 rpm) or rotate.
- Warm selection plate to 37 C.
- Spread 50-100 uL of each well-mixed dilution onto a selection plate and incubate 8-12 hours to overnight at 37 C. Alternatively, incubate at 30 C for 16 hours or 25 C for 24 hours.
[http://openwetware.org/wiki/Transforming_chemically_competent_cells TSS]
- Thaw 50ul prepared competent TSS cells on ice.
- Add approximately 1 ul prepped plasmid to the thawed cells. Make sure the culture is thoroughly mixed.
- Incubate for 30 minutes on ice.
- Incubate for 30 seconds at 42C (in a water bath).
- Incubate for 2 minutes on ice.
- Add 1 ml room temperature SOC.
- Incubate for 1 hour at 37C with shaking.
- Plate with appropriate antibiotic.
- Grow overnight at 37C.
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