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Revision as of 16:14, 4 October 2013
Our overlapping DNA fragments; tat, GFP, RFP and plasmid backbone was cloned together by Gibson Assembly and transformed into E.col strain ER2566 cells. The photograph below shows two of the resulting colonies (named ER1 and ER2) from this transformation.
Figure: Two of the transformed colonies with the tat_GFP_l_RFP construct. Hereby named ER1 and ER2.
The plasmid from the ER1 samples was isolated by the Promega Wizard Plus SV Minipreps DNA Purification System A1460 and sequenced. Figure below shows the alignment of the sequencing results with the reference DNA sequence.
Figure: Aligment of tat_GFP_l_RFP (ER1) with reference DNA.
The sequence align almost perfectly. There seems to be some sort of extra insert at the linker region, but this insert is dividable by 3, so the reading frame is maintained. This is supported by the fact that the colonies with this construct is red (see figure above).
Red ER1-cells in liquid media was immobilized in agar and then viewed in a confocal microscope for seeing if RFP was localized in the periplasm. The results can be seen in the two figures below:
Figure:Red ER1-cells viewed in confocal microscope in 2D
Figure:Red ER1-cells viewed in confocal microscope in 3D
