Transformation of Bacteria
Materials
- Competent Cells
- Plasmid amplification use subcloning efficiency DH5a
- Cloning use OneShot TOP10 (Pink)
- Mutagenesis use XL1 Blue Supercompetent (Blue)
- SOC Buffer
- DNA of interest (1 uL for plasmid, 5 uL for cloning/mutagenesis)
- Plates (Amp or Kan; in cold room)
Protocol
- Thaw cells on ice and label
- Add DNA to cells and mix by tapping
- Incubate on ice 30-45min
- Heat shock at 42C for 45s
- Place back on ice
- Add 450 uL of SOC Buffer
- Incubate at 37C for 1h with occasional mixing
- Plate 50 uL for amplification, or all for cloning/mutagenesis