1) We cultured bacterial strain with the LB medium which I added ampicillin to so that density becomes 100ug/ml overnight.(We made a nutrient medium of around 5 ml in 50 ml falcons)(Against 5 ml of nutrient mediums, Amp used 5ul)

2) Aliquot 1ml culture into a 1.5 ml microcentrifuge tube,and Made it spin at 10000rpm (4℃) for 1 min to harvest the bacteria.

3) Removed supernatant and performed 2)operation again, Removed supernatant .

4) Resuspended bacterial pellet by complete vortexing in 100ul SolutionⅠ{D-glucose:9g(50mM),1M Tris-HCl(pH 8.0):25ml(25mM),0.5M EDTA:20ml(10mM),H₂O:955ml /1L}.

5) Inverted bacterial pellet by complete fall mixtureing in 200ul SolutionⅡ{NaOH:8g,SDS:10g[1%(w/v)],H₂O:960ml /1L},and confirmed that it became transparent.

6) Cooled for three minutes in ice.

7) Inverted bacterial pellet by complete fall mixtureing in 150ul SolutionⅢ{CH₃COOH:294.5g(3M),CH₃COOH:120ml(2M),H₂O:diluting in measuring cylinder to 1L total},and confirmed that it became Cloudiness.

8) Cooled for 3 minutes in ice.

9) Harvested the DNA by spinning at 10000rpm (4℃) for 10 min.

10) Gathered only supernatant and moved it in a new microcentrifuge tube.

11) Added 0.8ul Rnase(10mg/ml) and incubate the solution(37℃,1min)

12) Added 200ul phenol:chloroform(1:1) and inverted

13) Harvested by spinning at 10000rpm (4℃) for 5 min.

14) Removed only supernatant and moved it in a new microcentrifuge tube, after that tapped in 200ul chloroform.

15) Harvested by spinning at 10000rpm (4℃) for 1 min.

16) Moved its supernatant to a new microcentrifuge tube and add 15ul 3M CH₃COONa.(Don't gather underlayer)(The ratio of the 3M sodium acetate and supernatant is made to be 10:1)

17) Added 400ul 100%CH₃CH₂OH and made it stirred well.

18) Harvested by spinning at 10000rpm (4℃) for 20 min.

19) Removed only supernatant and added 400ul 70%CH₃CH₂OH(pour a liquid from the other side for white thing not to drain a white.[white thing is plasmid])

20) Harvested by spinning at 10000rpm (4℃) for 20 min.

21) Removed only supernatant and opened the cover of the tube for 10min to dry CH₃CH₂OH.

22) Added 50ul TE to dissolve DNA

23) We stored low temperature

2:PCR

1)We diluted the primer.(D₂W:primer=4:1)

2)Made　PCR preparation liquid {buffer×10:2.5ul,dNTP:2ul,PrimerF:1ul,PrimerR:1ul,Taq Polumerase:0.1ul,D₂W:17.39ul /1 microcentrifuge tube(0.2ml)}

3)Added sample(there are Plasmid made with miniprep)to the microcentrifuge tube and do PCR(The PCR conditions are as follows).

Figure①:PCR condition every each part

[②→③→④]:repeated 40 cycles

4)We did Electrophoresis to confirm Objective band.