Team:HokkaidoU Japan/Notebook/aggregation Week 4
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[[image:HokkaidoU2012 120726 digestion ligation.jpg|thumb|Digestion and Ligation results]] | [[image:HokkaidoU2012 120726 digestion ligation.jpg|thumb|Digestion and Ligation results]] | ||
- | There are no band in the lane of ligation products | + | There are no band in the lane of ligation products. But if digestion products didn't ligate, there are two bands of digestion products would exist in the lane. |
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Revision as of 09:34, 26 July 2012
Contents |
July 23th
Mini-prep
mini-prep for Ag43(7/17 cultivated colony resuspended and 7/20 cultivated colony resuspended). We used FastGene Plasmid Mini Kit(Nippon Genetics) and got 50ul of DNA solutions.
July 24th
Electrophoresis
Electrophoresis for Ag43(mini-preped above) and Ag43 digestion results(digested with EcoRI and SpeI)
In this digestion result, we knew that one or two enzymes didn't work successfully but there are enough concentration of DNA in 3000bp band to use in digestion.
Gel extraction
Gel extraction for digestion production. We used FastGene Gel&PCR extraction kit(NipponGenetics)and got 50ul of DNA solution.
Ethanol precipitation
Ethanol precipitation for digestion and gel extraction product.
- Added 5ul of NaoAc, 1.5ul of glycogen and 125ul of 100% ethanol.
- Centrifuged in 15000rpm, 10min at 4C.
- Remove supernatant and added 220ul of 70% ethanol.
- Centrifuged in 15000rpm, 10min at 4C.
- Remove supernatant and air drying in room temperature then added 10ul of DW.
In this result, we estimated that the concentration of ethanol precipitation product is about 40ng/ul.
Digestion
Digestion to confirm how many PstI cutting sites are in K346007(Ag43 coading) and Ag43-dT complex digestion with SpeI and XbaI. Ag43 PstI
DNA solution | 5ul |
PstI | 1ul |
10xH buffer | 2ul |
DW | 12ul |
Total | 20ul |
Ag43-dT
SpeI and XbaI
DNA solution | 12ul |
SpeI | 1ul |
XbaI | 1ul |
10xH buffer | 2ul |
DW | 4ul |
Total | 20ul |
Electrophoresis
Electrophoresis for digestion results.
In this result, we found that there are 6 PstI cutting sites in K346007(Ag43).
Gel extraction
Gel ectraction of Ag43-dt digestio result.We used FastGene Gel&PCR extraction kit(NipponGenetics)and got 50ul of DNA solution.
Digestion
Digestion for Ag43-dT and pSB1AK3 mixture(each DNA fragment is about 3kbp) with HindIII to digest pSB1AK3 into about two 1.5kbp fragments.
DNA solution | 8ul |
HindIII | 1ul |
10xM buffer | 1ul |
Total | 10ul |
July 25th
Digestion
Digestion of pT7-RBS on pSB1K3 cutting with SpeI.
DNA solution | 3ul |
SpeI | 1ul |
10xH buffer | 1ul |
DW | 5ul |
Total | 10ul |
We were confirmed that pAB1AK3 was digested into 1.3k and 1.8k bp fragments by HindIII. But there are a little doubt SpeI wasn't work because the band of pT7-RBS on pSB1K3 of d- and d+ existed same bp area.
Gel extraction
Gel extraction of Ag43-dT on pSB1AK3(HindIII) and pT7-RBS on pSB1K3(SpeI). We used FastGene Gel&PCR extraction kit(NipponGenetics)and got 50ul of DNA solution.
Ethanol precipitation
Ethanol precipitation of digestion and gel extraction products.
- Added 5ul of NaoAc, 1.5ul of glycogen and 125ul of 100% ethanol.
- Centrifuged in 15000rpm, 10min at 4C.
- Remove supernatant and added 220ul of 70% ethanol.
- Centrifuged in 15000rpm, 5min at 4C.
- Remove supernatant and air drying in room temperature then added 5ul of DW.
Ligation
Ligation for pT7-RBS on pSB1K3(Vector) and Ag43-dT(Insert)
pT7-RBS on pSB1K3 | 2ul |
Ag43-dT | 2ul |
DW | 1ul |
Ligation Mighty Mix(TAKARA) | 5ul |
Total | 10ul |
Degree | Minute |
16 | 30 |
65 | 10 |
4 | Hold |
July 26th
Transformation
Transformation of plasmid DNA ligated in 25th (pT7-RBS-Ag43-dT on pSB1K3) in E. coli(BL21).
- Added 2ul of plasmid DNA to 50ul of thawed competent cells on ice.
- Incubated on ice for 30min.
- Added 200ul of LB then incubated the cells for 2 hrs at 37C.
- Prepared and Labeled two petri dishes with LBK.
- Plate 200ul of the transformation onto first dish and spread.
- Added 450ul of LB to 50ul of the transformation and plated 200ul of it onto second dish and spread.
- Incubated the plates at 37C for OOhrs.
Electrophoresis
Electrophoresis of digestion and ligation products.
- Placed TBE agarose gel in Electrophoresis chamber.
- Added 1/2X TBE buffer to Electrophoresis chamber.
- Added 5ul of Etbr and ran at 100V in 30min.
- Load 1kb DNA ladder and each samples.
- Ran at 100V in 30min.
There are no band in the lane of ligation products. But if digestion products didn't ligate, there are two bands of digestion products would exist in the lane.