RBS

Part:BBa_K4117666:Experience

Designed by: Lu Yan   Group: iGEM22_BNU-China   (2022-09-30)

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Applications of BBa_K4117666

We added the GFP downstream of the RNA thermometer (RBS) to characterize the efficiency of RNA thermometer.

T--BNU-China--GFPpathway.png
Fig.1 RNA thermometer verification pathway

In order to verify the function of RNA thermometers, We cultured the strain at 37°C overnight, and then aliquots, adding pre-prepared flasks filled with 37°C and 28°C LB medium to make the final volume 20ml, then measured the initial OD600 and GFP fluorescence intensity. Samples were taken once every half-hour, OD600 and GFP fluorescence intensity were measured.

GFP measurement results are shown in Fig.2.

T--BNU-China--OD600GFP.png

Fig.2 GFP fluorescence intensity after incubating in different temperatures

And we used a fluorescence microscope for observation. The bacterial liquid under the fluorescence microscope is as Fig. 3:

T--BNU-China--6GFP.png

Fig.3 Images under fluorescene microscope (fluorescene microscope 10 x 100)
(A) No GFP in engineerd bacteria incubated at 28℃ (B) Bright field image of bacteria incubated at 28℃
(C) The field of view after superposition of A and B (D) GFP in engineerd bacteria incubated at 37℃
(E) Bright field image of bacteria incubated at 37℃ (F) The field of view after superposition of D and E

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