Team:Chiba/AHL Receiver Phase

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Chiba-U.gif

Home The Team The Project Parts Submitted to the Registry Reference Notebook Acknowledgements

Signal Molecule Receiver Phase

Quorum Sensing Crosstalk

Design

Table.1 LuxR family gene

センダーとレシーバーを元来とは異なる組み合わせにすることによって、thresholdに達する時間を遅くする。（杉山）


Experiment

Fig.R family crosstalk test
LuxI-sender Chiba.gif


  • Receivers
    • LuxR

LuxR-p15A Chiba.gif

RhlR-p15A Chiba.gif

LasR-p15A Chiba.gif

CinR-p15A Chiba.gif

Plux-GFP-pMB1 Chiba.gif



Result

Fig.　 Time Delay Test




Plasmid Copy number

Design

Experiment

Sender

LuxI-sender Chiba.gif

Receiver

Reporter 9002 chiba.gif

Result

Fig.　 Time Delay Test


LuxR_mutant

Design

Fig.6 Location of the LuxR mutant in LuxR
Table.1 Seisitivity of LuxR mutants. Data modified from Collins et.al. Mol. Microbiol. 55, 712–723 (2005)


Collins et.al. described the hyper-sensitive variants of luxR to AHL.(Collins, C. H., Arnold, F. H. & Leadbetter, J. R. Directed evolution of Vibrio fischeri LuxR for increased sensitivity to a broad spectrum of acyl-homoserine lactones. Mol. Microbiol. 55, 712–723 (2005))

私たちはmutated Receiverを用いることで、AHL感受性の違う２種類（WTと変異体）のレシーバーを用意し、delay-timeのバリエーションを増やした。 (小林)


Experiment

Result

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