Team:ETH Zurich/expresults/qs/tab-plas

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Table 2 Crosstalk matrix for the promoter plas (BBa_R0079)
The promoter of interest of the experiments summarized in this matrix is pLas.

The graph on top left corner shows the induction of pLux by 3OC12-HSL binding the corresponding LasR. The red line shows the model whereas the cross shown in red represent the experimental data. The transition can be observed at a concentration of Las-AHL of about 5 nM.

For C4-HSL binding the three regulators LasR, LuxR and RhlR and then the pLas no crosstalk can be observed. Also 3OC6-HSL binding RhlR does not induce the pLas. For the binding of 3OC12-HSL to RhlR a negligible increase of fluorescence can be observed. The same can be observed for 3OC12-HSL binding to the LuxR as this combination is to a small degree inducing pLas.
The interesting case of crosstalk when observing pLas is shown in the graph in the center of the matrix. It is clearly shown that 3OC6-HSL (Lux-AHL) binding to the corresponding LuxR regulator is able to induce pLas to fluorescence values of about 250 AU. This is the phenomenon of severe crosstalk as the induction of pLas by the corresponding inducer and regulator molecule is nearly on the same level measured by fluorescence as induction by Lux-AHL binding the LuxR and subsequently pLas.
ETH Zurich 2014 qs-table CornerLas.png ETH Zurich 2014 qs-table 3OC12-HSL.png ETH Zurich 2014 qs-table 3OC6-HSL.png ETH Zurich 2014 qs-table C4-HSL.png
ETH Zurich 2014 qs-table LasR.png ETH Zurich 2014 qs-table PlasRef.png ETH Zurich 2014 qs-table PlasLasRLuxAHL.png ETH Zurich 2014 qs-table PlasLasRRhlAHL.png
ETH Zurich 2014 qs-table LuxR.png ETH Zurich 2014 qs-table PlasLuxRLasAHL.png ETH Zurich 2014 qs-table PlasLuxRLuxAHL.png ETH Zurich 2014 qs-table PlasLuxRRhlAHL.png
ETH Zurich 2014 qs-table RhlR.png ETH Zurich 2014 qs-table PlasRhlRLasAHL.png ETH Zurich 2014 qs-table PlasRhlRLuxAHL.png ETH Zurich 2014 qs-table PlasRhlRRhlAHL.png