Team:BostonU/Interlab

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Interlab Study

Our team participated in the interlab study this year. The interlab study is coordinated effort by iGEM to gather fluorescence data from three known genetic devices across different labs from around the world. This is an effort to normalize fluorescence data that may have been recorded under different conditions.

Our team used biobrick cloning methods to make the constructs each of which consisted of a GFP gene under a different constitutive promoter. The data was collected using FACS. The data was then processed by negating all fluorescence from cells that were outliers in size or complexity. Then, all cells that expressed a negative fluorescence value were disregarded.

Inoculate colonies in 500 microliters LB broth overnight

Inoculate 20 microliters of the overnight culture into 1 mL minimal media with glucode and incubate at 37 degrees Celsius and 300 rpm.

Check the optical density of 50 microliters culture with 150 microliters LB

When optical density is between 0.2-0.6 spin down and re-suspend in minimal media and chloramphenicol

Dilute 40 microliters of resuspended cells into 160 microliter solution of 1.25% paraformaldehyde

After 30 minutes, dilute 20 microliters of the 1.25% paraformaldehyde solutions into 180 microliters phosphate-buffered saline

Perform flow cytometry on sample