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EPF-Lausanne/30 July 2008
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<p>We started a 2 step PCR too get LuxR, lasR, RhlR genes. We intend to convert them to proteins invitro to test their binding affinity to their DNA sites. | <p>We started a 2 step PCR too get LuxR, lasR, RhlR genes. We intend to convert them to proteins invitro to test their binding affinity to their DNA sites. | ||
| - | 1st step worked | + | 1st step worked except for LasR, but we were not sure the gene was actually in the plasmid. 2nd stop should finish this evening. We have to order the "ribosomal solution" to continue. |
We used more DNA and primers because 1st try didn't work. Here is our protocal. Normaly 1ul of DNA and primers. | We used more DNA and primers because 1st try didn't work. Here is our protocal. Normaly 1ul of DNA and primers. | ||
</p> | </p> | ||
Revision as of 13:57, 30 July 2008
We started a 2 step PCR too get LuxR, lasR, RhlR genes. We intend to convert them to proteins invitro to test their binding affinity to their DNA sites. 1st step worked except for LasR, but we were not sure the gene was actually in the plasmid. 2nd stop should finish this evening. We have to order the "ribosomal solution" to continue. We used more DNA and primers because 1st try didn't work. Here is our protocal. Normaly 1ul of DNA and primers.
Protocol
1st Step
| dNTP | 1ul |
| 10x Buffer + mgcl2 | 5ul |
| DNApoly | 1ul |
| 3'primer | 5ul |
| 5'primer | 5ul |
| template | 5ul |
| H2O | 28ul |
| --------------------- | ---------- |
| Total | 50 |
2nd Step
Dilute primers to 250nM each. The template is the previous PCR mix
| dNTP | 1ul |
| 10x Buffer + mgcl2 | 5ul |
| DNApoly | 1ul |
| Primer mix | 1ul |
| template | 5ul |
| H2O | 41.5ul |
| --------------------- | ---------- |
| Total | 50 |
Launch for 10 cycles and then add the final primers. 1ul of each.
We our finishing the exaxt design of our plasmids. Extracting LacI from the Ron-Weiss plasmid and making it a part will probably need new primers(so we can add the restriction sites).
Same has to be done for incorporating RhlI in the GFP operon on the pHD plasmids. We may use PciI to cut the plasmid in one location: 3382. But we have to check if we were the terminator is. May have to digest out the GFP and reinstert a GFP+RhlI operon.
