From 2014.igem.org
(Difference between revisions)
|
|
(2 intermediate revisions not shown) |
Line 1: |
Line 1: |
- | ='''Protocol : Transformation of supercompetent ''E.coli'' cells'''=
| |
- | # Thaw supercompetent cells at room temperature. (almost 100µL for control and 100 µL for one DNA transformation )
| |
- | # Control T-:
| |
- | In a 1.5 ml microcentrifuge tube (eppendorf), add 100 μl solution of supercompetent cells (0).
| |
- | Plasmid DNA pUC18 (or DNA of your choice) :
| |
- | In a 1.5 ml eppendorf , add 100 μl solution of supercompetent cells, 1 μl (concentration 0.1 ng/μl) of DNA pUC18 (Resistant of Ampicillin)(1).
| |
- | # Incubate solutions on ice for 30 min.
| |
| | | |
- | 4. Make a heat shock: incubate bacteria at 42 °C for 1 min, then on ice for 2 min.
| |
- |
| |
- | 5. Add 1 ml LB in two eppendorfs, incubate solutions with agitation at 37 °C for 1 h.
| |
- |
| |
- | 6. Dilution for the solution (1): ( you are going to plate different dilutions of your pUC18 transformed bacteria)
| |
- |
| |
- | * 10-1: In a 1.5 ml eppendorf (2), add 100 μl solution (1) and 900 μl LB.
| |
- |
| |
- | * 10-2: In a 1.5 ml eppendorf (3), add 100 μl solution (2) and 900 μl LB.
| |
- |
| |
- | 7. Take 100 μl of each solution : the control(0)and the pUC18 transformed bacteria (1),(2),(3) spread them out on four identical environment with ampicillin ( or appropriated antibiotic).
| |
- |
| |
- |
| |
- | [[File:Pstransformation.jpg|center|200px]]
| |
Latest revision as of 10:01, 12 July 2014