Part:BBa_C0061:Experience

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User Reviews

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Antiquity

This review comes from the old result system and indicates that this part did not work in some test.

••••• wmholtz

Using this part, I have successfully constructed and tested a quorum sensing circuit in E. coli.

••••• Youri

This part was used as a subpart in K546005, K546546 and found to be functional.

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••••• UNIPV-Pavia iGEM 2011

NB: unless differently specified, all tests were performed in E. coli MGZ1 in M9 supplemented medium at 37°C in low copy plasmid pSB4C5. The LuxI enzyme activity has been characterized under the regulation of ptet promoter, assaying its enzymatic activity, with these parts: BBa_K516210 pTet-RBS30-LuxI BBa_K516211 pTet-RBS31-LuxI BBa_K516212 pTet-RBS32-LuxI BBa_K516214 pTet-RBS34-LuxI Though these parts don't have a transcriptional terminator, they have been characterized in low copy plasmid pSB4C5, that contains the BBa_B0054 terminator. The four measurment parts ptet-RBSx-LuxI were quantitatively characetrized using the BBa_T9002 biosensor. The HSL synthesis rate has been evaluated, estimating Vmax, kM,LuxI and αRBSx parameters of the equations below: A significative HSL production was observed for BBa_K516210, BBa_K516211 and BBa_K516214, while no HSL production was observed for BBa_K516212. The parameters Vmax, kM,LuxI and αRBSx were estimated with a simultaneous fitting of the data collected (HSL concentration measured in the supernatants of cultures, see BBa_T9002 Experience page): Parameters' values are summarized in the table below: Vmax kM,LuxI αB0030 αB0031 αB0032 αB0034 3.56*10-9 6.87*103 87 8.5 ND 252 The provided parameters kM and Vmax represent the enzymatic activity of LuxI, described by our model. They must not be confused with the operative parameters of the Michaelis-Menten relation.

•••• Kevin (iGEM Braunschweig 2013)

The plasmid pSB1C3 BBa_C0061 from the 2013 distribution Kit was transformed in E. coli XL1 BlueMRF. Sequencing with standard verification primers VR and VF2 showed matching sequence of the pre- and suffix and the part itself but the backbone DNA in front of the prefix does not match pSB1C3.

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