Team:HokkaidoU Japan/Notebook/September14
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==Ethanol precipitation== | ==Ethanol precipitation== | ||
- | [[Image:HokkaidoU Japan 20100914b.jpg|200px|right|thumb|]] | + | [[Image:HokkaidoU Japan 20100914b.jpg|200px|right|thumb|Electrophoresis after ethanol precipitation]] |
* Added ethanol acetate[3M] 4 uL to 40 uL of previously purified DNA solutuion | * Added ethanol acetate[3M] 4 uL to 40 uL of previously purified DNA solutuion | ||
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* It was about 20 ng/uL | * It was about 20 ng/uL | ||
→Used 2 uL of it | →Used 2 uL of it | ||
- | |||
==Ligation== | ==Ligation== |
Revision as of 11:16, 28 September 2010
=Digestion and ligation of pSB1C3, araC Promoter and GFP
Digestion
Used pSB1C3 which was PCRed september 6th. DNA concentration was 2256 ng/uL. So diluted 20 times.
Reagent | Amount |
---|---|
10x M buffer | 5 uL |
DW | 34 |
pSB1C3 | 1 |
BSA | 5 |
EcoR I | 2 |
Pst I | 3 |
Total | 50 uL |
Reagent | Amount |
---|---|
10x M buffer | 5 uL |
DW | 27 |
Promoter | 8 |
BSA | 5 |
EcoR I | 3 |
Spe I | 2 |
Total | 50 uL |
Reagent | Amount |
---|---|
10x M buffer | 5 uL |
DW | 32 |
GFP | 3 |
BSA | 5 |
Xba I | 4 |
Pst I | 1 |
Total | 50 uL |
→Incubated at 37C for 120 min
→Added Sample Buffer 10 uL and electrophoresed
- pSB1C3band wasn't visible
→ Other 2 were gel extracted
- Diluted that final volume would be 40 uL
Ethanol precipitation
- Added ethanol acetate[3M] 4 uL to 40 uL of previously purified DNA solutuion
- Added EtOH[100%] 44 uL friezed in dry ice
- Melted and centrifuged at 15,996rpm, 4C 5 min
- Discarded supernatant and added EtOH[70%] 100 uL rinsed
- Centrifuged at 15,996rpm, 4C 5 min
- Discarded supernatant and dried
- Diluted in 2 uL of TE each
Anticipated concentrations promoter: 125 ng/2uL GFP: 106 ng/2uL
- pSB1C3 was cut(EcoR1, Pst1) on September 6th
- Did ethanol precipitation and electrophoresed to check concentration
- It was about 20 ng/uL
→Used 2 uL of it
Ligation
Reagent | Amount |
---|---|
pSB1C3 | 2 uL |
promoter | 2 uL |
GFP | 2 uL |
Mighty Mix | 6 uL |
T4 ligase | 0.4 uL |
Total | 12.4 uL' |
- 50 uL were transformed by electroporation and remaining 50 uL by heat shock (chemical)