E.Z.N.A.® Endo-free Plasmid DNA Mini Kit II

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Omega Biotek E.Z.N.A.® Endo-free Plasmid DNA Mini Kit II

Isolate low endotoxin (<1 EU/µg) plasmid DNA from up to 15 mL bacterial cultures using spin mini columns

Plasmid isolated with traditional purification procedures normally contain high levels of endotoxins (also known as lipopolysaccharides or LPS) that can significantly interfere with transfection experiments downstream. The E.Z.N.A.® Endo-Free Plasmid DNA Mini Kit II integrates an efficient endotoxin removal step into the plasmid purification procedure to produce high-quality transfection grade (<1 EU/µg) plasmid for efficient transfection. The bacterial cells are lysed using the alkaline-SDS lysis method. The cleared cell lysate is then treated with ETR reagent to efficiently remove the endotoxins. After adjusting the binding condition, the cell lysate is applied into the HiBind® DNA column and purified DNA is eluted from the column membrane.

  • Rapid – 30 minutes or less
  • Safe – No phenol/chloroform extractions
  • Versatile – Spin and vacuum formats available
  • High-quality – Endotoxins efficiently reduced (<1 EU/µg)
Downstream ApplicationSensitive cell line transfection; gene therapy etc.
Starting material5- 15 mL mL LB culture with OD600 between 2 and 3; or equivalent
Plasmid typeHigh-copy, low-copy, cosmid DNA
Processing modeManual, centrifugation
Throughput1 – 24
DNA binding technologySilica Mini Spin Column II (2x capacity of mini spin column)
Lysate clearance methodCentrifugation
Processing time<30 minutes
Yield40-70 µg for high copy-number; 1-15 µg for low copy-number
Special noteIncludes endotoxin removal step

Additional information


50 Preps, 200 Preps