Team:Chiba/lux promoter

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Abstract

LuxR is an AHL-aided activator.However insert lux box between -35 and -10 and LuxR fuctions as LuxR-AHL inverter. Someone resistered the Plux inverter in Biobrick number R0061.We've prepare Plux inv-GFP and characterized about it.

Experiments

1.Preparing Plux inv-GFP

1.Plux inv-GFPの作製 クローニングのprocessをFig. 1に示す。作製したPlux inv-GFPを形質転換した株は緑色蛍光を示した。また,sequenceも正しいことを確認した。 Preparing Plux inv-GFP process is shown in Fig. 1.

Fig. 1  Evaluation of LuxR Inverter

2.Characterization Plux inv-GFP

Plux inv-GFP およびLuxR generatorである Plac-LuxRをDH10B株に共形質転換した。コロニーをつついてLB液体培地(AHL0および1000 nM)で12 h培養し, スピンダウンしてペレットを観察した。

Fig. 2 assay protocol

Results

Fig. 3

Reference

  1. Egland.K.A, and Greenberg.E.P, Conversion of the Vibrio Fischeri Transcriptional Activator,LuxR, to a Repressor, J. Bacteriol., 182, P.805-811 (2000)
  2. Cox.R.S.3rd, Surette.M.G, Elowitz.M.B, Programming gene expression with combinatorial promoters, Mol Syst Biol, 3 ,145 (2007)