1. Take 1ml of culture solution of E.coli strain DH5α, in 1.5 ml of eppendorf’s tube.
2. Then centrifuge at 12000 rpm for 5 min.
3. Then discard the supernatant.
4. Then add 500 μl of TE in the tube and dissolve the tube by gentle shaking.
5. Then add same volume of sample buffer.
6. Finally heat the sample on boiling bath for 5 minutes
and then immediately keep on ice.