Team:NTU-Singapore/Notebook/8 July 2008
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(New page: *Ran PCR for T7 ptag and SupD. *Gel extraction of E7 (clear clean bands - yay!).) |
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+ | =Tuesday 8 July= | ||
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+ | <div class="quote" style="margin:20px;"> | ||
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*Ran PCR for T7 ptag and SupD. | *Ran PCR for T7 ptag and SupD. | ||
*Gel extraction of E7 (clear clean bands - yay!). | *Gel extraction of E7 (clear clean bands - yay!). | ||
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+ | *900-1130: Lu Chao: minipreps and nanodrops for pLacI, pFe, RBS 34, GFP (3 samples for each plasmid). | ||
+ | *Hung: | ||
+ | **1030-1130: as the Minelute PCR purification columns are temporarily out of stock, I used the QIA PCR purification kit to purify a PCR E7 (20ul), and the GFP that was digested with EcoRI/PstI and gel-extracted on last Friday (50ul). Nanodrop showed quite low concentration and purity. However, later gel run showed clear and distinct bands for E7 (2kb) and GFP (800b). | ||
+ | **1200-1215: digestion of GFP with XbaI/PstI to obtain empty plasmid vector (as Darius was also synthesizing E7 with XbaI/PstI restriction sites). Incubate at 37 degress for 4 hours (until 1615). | ||
+ | **1300-1330: ligation at 1:3 ratio for: | ||
+ | ***pFe-GFP | ||
+ | ***LacI-GFP<br> '''Note:'''We tried additional step for ligation: incubate insert/vector mixture at 50 degrees for 5 mins, then put on ice for 1 min, pulse spin then start adding buffer, and quick ligase. | ||
+ | **1340-1400: PCR purification for ligation mixtures. Then ligation mixtures were put on ice until transformation at 1610 (carried out together with LacI-RBS34). | ||
+ | **1610-1810: Lu Chao: transformation and cell cloning for LacI-RBS 34 (use 0.5 ul of the succesfully ligated product), LacI-GFP (use both 1ul, 3ul and 4ul to transform into Homemade top10 cells) and pFe-GFP (use both 1ul, 3ul and 4ul to transform into Homemade top10 cells). | ||
+ | **1620-1645: QIA purification for GFP digested with XbaI/PstI at 1200. Nanodrop showed very good concentration and purity. That means we can trust this kit to purify our digested mixtures. | ||
+ | **Wednesday we're trying to ligate E7 with empty plasmid using different cutting sites (EcoRI/PstI and XbaI/PstI). | ||
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+ | *Gel Story | ||
+ | Pre Staining is ineffective. | ||
+ | **Reasons-Inconsistent Cooling process, Formation of clumps of gel during cooling, non homogenous gel led to inconsistent Gel results. | ||
+ | Conclusion | ||
+ | POST STAINING | ||
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+ | *E7 PCR Story | ||
+ | **E7 PCR tube Gel Run-Smeary gel | ||
+ | ***Gel Extract-50ul-Concentrate to 30ul using PCR purification kit | ||
+ | ****Gel run..clean clear bands at 2k mark | ||
+ | *E7 PCR Direct Run Ethidium Bromide Gel | ||
+ | **Gel run was good. | ||
+ | ***Confirming that post Staining of gel is good | ||
+ | |||
+ | T7ptag Story | ||
+ | PCR T7ptag using 1:50, 1:20, direct plasmids and T7ptag PCR as templates | ||
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+ | SupD Story | ||
+ | PCR SupD using 1:20 Plasmid and PCR Product as templates | ||
+ | </div> |
Latest revision as of 02:25, 28 October 2008
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Tuesday 8 July
Pre Staining is ineffective.
Conclusion POST STAINING
T7ptag Story PCR T7ptag using 1:50, 1:20, direct plasmids and T7ptag PCR as templates SupD Story PCR SupD using 1:20 Plasmid and PCR Product as templates |