Team:HIT-Harbin/Experiments
From 2013.igem.org
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- | < | + | <h4 class="hashed"><span>2.Investigating the relationship between the concentration of RFP with that of IPTG</span></h4> |
<p></p>1)Measuring absorbance of RFP | <p></p>1)Measuring absorbance of RFP | ||
<p></p>We grew bacteria without device and bacteria with our device in same volume until stationary phase. Taking bacteria without device as background, we measured the absorbance of bacteria with our device (the max absorption peak is 504nm). | <p></p>We grew bacteria without device and bacteria with our device in same volume until stationary phase. Taking bacteria without device as background, we measured the absorbance of bacteria with our device (the max absorption peak is 504nm). |
Revision as of 05:36, 27 September 2013
Project/experiments
Experiment Schedule
![](https://static.igem.org/mediawiki/2013/4/45/Experiment2.png)
Fig 1. PCR resuLts of our own parts
(1: hrpL; 2: hrpS; 3: hrpR; 4: Ptet +strong RBS+hrpS+T; 5:Ptet+intermediate RBS+hrpS+T; 6: Ptet+weak RBS+hrpS+T; 7: PIPTG +strong RBS+hrpR+T; 8 is not needed; 9: PIPTG +weak RBS+hrpR+T; 10: PhrpL+strong RBS+tetR+T; 11: PhrpL+intermediate RBS+tetR+T; 12: PhrpL+weak RBS+tetR+T; 13: PhrpL+strong RBS+RFP+T; 14: PhrpL+weak RBS+RFP+T; 15: PhrpL+weak RBS+RFP+T)
![](https://static.igem.org/mediawiki/2013/c/ca/Experiment3.png)
Fig 1.EcoR1 and Pst1 double restriction enzyme cleavage for hrpL AND gate(BBa_K1014014) device and B-POM1(BBa_K1014999)
1:plasmid carrying BBa_K1014014; 2:double restriction enzyme cleavage for 1; 3:plasmid carrying BBa_K1014999; 4:double restriction enzyme cleavage for 3
1.Test of device
1)Preparation of IPTG solution: add 240mg IPTG powder into 10mL dd H2O. We filtrated the solution to sterilize it and broke it into EP tubes. The concentration is 24mg/mL (100mM/mL). then we stored them in -20℃. 2)To test the four different combination according to the strength of promoters, we made different concentrations of IPTG for the bacteria.Table 1 IPTG formula
![](https://static.igem.org/mediawiki/2013/a/a9/Experiment4.png)
![](https://static.igem.org/mediawiki/2013/c/c2/Experiment5.png)
Fig 3. No red after night
![](https://static.igem.org/mediawiki/2013/1/10/Experiment6.png)
2.Investigating the relationship between the concentration of RFP with that of IPTG
1)Measuring absorbance of RFP We grew bacteria without device and bacteria with our device in same volume until stationary phase. Taking bacteria without device as background, we measured the absorbance of bacteria with our device (the max absorption peak is 504nm). Before the mensuration, we diluted the two groups according to table2. We took the mean of two measures as the useful data. div align="center">Table 2 Dilution of Two groups of bacteria
![](https://static.igem.org/mediawiki/2013/2/21/Experiment7.png)