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Salmonella typhimurium

Electroporation of cells:

  1. Add 2 l plasmid DNA (20 pg to 20 ng) to 40 l of electrocompetent cells. Homogenize by gently mixing with pipette several times. Transfer mixture into a prechilled cuvette.
  2. Wipe moisture from the cuvette and insert the cuvette into the device.
  3. Electroporation:

    Mode Prokaryotes O Voltage (V) 2,400 V Time constant (T) 5 ms
  4. Immediately add 1 ml SOC medium and transfer to a sterile culture tube. Incubate for 1 hour at 37 C with shaking.
  5. Dilute the cells in SOC medium and plate on selective LB plates.
Expected Results: Transformation efficiency up to 4 x 108 transformants/g of DNA.


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