"
Team:EPF-Lausanne/Notebook/September2011
From 2011.igem.org
(→Thursday, September 1 2011) |
(→Thursday, September 1 2011) |
||
| Line 7: | Line 7: | ||
Vincent PCR purified the pSB3K1-extended (no TetR) for use in the Gibsons and negative controls. | Vincent PCR purified the pSB3K1-extended (no TetR) for use in the Gibsons and negative controls. | ||
| - | The Gibson | + | The Gibson assembly of J6-Plac-Lysis had produced a single colony. |
| + | |||
| + | [[File:Placlys_col_check.jpg|500px]] | ||
After taking a closer look at the plate from the platereader, it seems that none of the T7 variants did any lysing. This realization made it urgent that we discover whether or not the full T4-lysis cassette was really in these Gibson-assembled plasmids. The samples that had been sent in for sequencing had primers that seemed to amplify the backbone, instead of the lysis cassette. While this does not necessarily mean that the lysis is not there, it does suggest that all the PCRS and gels used to verify the presence of lysis were only showing the existence of the backbone. | After taking a closer look at the plate from the platereader, it seems that none of the T7 variants did any lysing. This realization made it urgent that we discover whether or not the full T4-lysis cassette was really in these Gibson-assembled plasmids. The samples that had been sent in for sequencing had primers that seemed to amplify the backbone, instead of the lysis cassette. While this does not necessarily mean that the lysis is not there, it does suggest that all the PCRS and gels used to verify the presence of lysis were only showing the existence of the backbone. | ||
Revision as of 13:19, 5 September 2011
Notebook: September 2011
Thursday, September 1 2011
Vincent PCR purified the pSB3K1-extended (no TetR) for use in the Gibsons and negative controls.
The Gibson assembly of J6-Plac-Lysis had produced a single colony.
After taking a closer look at the plate from the platereader, it seems that none of the T7 variants did any lysing. This realization made it urgent that we discover whether or not the full T4-lysis cassette was really in these Gibson-assembled plasmids. The samples that had been sent in for sequencing had primers that seemed to amplify the backbone, instead of the lysis cassette. While this does not necessarily mean that the lysis is not there, it does suggest that all the PCRS and gels used to verify the presence of lysis were only showing the existence of the backbone.
Alina ran a PCR with different primers from Douglas' first attempts at putting together the 2700 bp cassette that amplify select regions of the cassette.
