The TransformAid Bacterial Transformation Kit is provided for fast and efficient preparation of
chemically competent cells and fast transformation. E. coli cells are not included in this kit. All
common E.coli laboratory strains can be used. To enable blue/white screening, choose only
strains having lacZ∆M15 mutation, for example, XL1-Blue, ER1727, JM109 or other. Typical
transformation efficiencies are more than 107 transformants per µg of supercoiled plasmid DNA.
The TransformAid Bacterial Transformation Kit allows you flexibility in using either overnight
liquid bacterial culture or bacterial colonies from agar plates for preparation of competent cells.
• Use overnight culture to prepare competent cells in only 50 min. Following this, the
transformation takes only 5 minutes and the cells can be plated immediately. There is no
need for heat shock or an incubation of transformed cells in SOC medium.
• Use bacterial colonies, if overnight culture is not available. The procedure takes 2.5 hours
but nevertheless it allows researchers to transform E.coli strain of choice the same day.
Note
o All procedures are performed on ice. All short centrifugations can be carried out at room temperature (RT)
in a regular minicentrifuge. Do not keep cells in the centrifuge at RT for more than 5 min as this will
significantly decrease the transformation efficiency.
o Competent cells prepared with TransformAid Bacterial Transformation Kit are suitable for direct use only.
Freezing down and storage at -70°C is not recommended.