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Cell Surface DisplayRepeating Streptavidin Alive (SA) Gibson
- DpnI digestion of the SA purifies PCR product to remove parental plasmid carry over.
- Gibson Reaction between the SA DpnI digested product (insert) and the INP_construct DpnI digested (backbone) in july.
- 0.8% electrophoresis gel to verify gibson product.
- DH5alpha competent cells transformation with Gibson product with negative controls transformations (PCR backbone, PCR insert and water).
Sensing-Effector
Results of the gradient PCR of the Sensing constructs from the previous day
-The Gradient PCR of the Backbones for the sensning constructs did not work. So we wanted to digest the backbone with an enzyme that cuts in the region of the AraC promoter, as this part would be removed during later PCR for the sensing constructs. This would yield a linear DNA which would be easier to amplify.
Restriction digest
-We digested the plasmid with the BamHI enzyme which cuts it in the AraC promoter. The digestion was succesful and we used the liearized plasmid to do another PCR with the primers for the hya backbone.
PCR of the three sensing Backbones with a different program
-We tried a new program which runs the first ten cycles 10°C bellow the normal annealing temperature and then the 20 remaining ones at the normal temperature. Finally this PCR worked and the Backbones were amplified.
Note
-We decided to only do the effector constructs that contained GFP because we did not have time to do them all. Also, it would be easer to check if the promoter is really still induced by arabinose or not.
Nanoparticles
Sensitivity Assay
-DLS sensitivity assay (i.e. measuring diluted nanoparticles to see how far we could go in the dilutions)
- tart of a new ELISA-like assay