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Azotobacter vinelandii

C.

Electroporation of cells:

  1. Add 1 l (300 ng/l) plasmid DNA to 40 l of electrocompetent cells. Homogenize by gently mixing with pipette

    2. several times. Transfer mixture into a prechilled cuvette.
  2. Wipe moisture from the cuvette and insert the cuvette into the device.

  3. Electroporation:

    4. Mode Prokaryotes O Voltage (V) 1,800 V Time constant (T)
     5 ms No. of pulses (n) 1
  4. Immediately add 1 ml AG medium and incubate with shaking at 200 rpm for 1 h at 30 C.

  5. Plate onto selective AG media plates.

Expected results:

Transformation efficiency up to 6.8 x 105 transformants/g of DNA.


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