User:NYOUSHA Yousefi/Notebook/Protein Engineering/2012/10/09

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Entry title

Protein expression


The frozen cells that were presented with Zn Hb were prepared for further protein expression studies


  1. The containers frozen cells were taken out of the freezer and were allowed to slowly cool down at the room temperature in a beaker full of tap water.
  2. When the cells mixture completely turned into liquid, they were killed and broken apart by the ultrasound processor in 30seconds intervals of ultrasound and 30s intervals of sitting still in the ice. This intervals were repeated for 3 times.
  3. The cell mixtures were placed into special centrifuge tubes and their weights were balanced to hundred decimal places.
  4. The cells were centrifuges at 18000g for two hours.