Activated Gα13 inhibits AhR‐mediated transcriptional activity.

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Presentation transcript:

Activated Gα13 inhibits AhR‐mediated transcriptional activity. Activated Gα13 inhibits AhR‐mediated transcriptional activity. (A,B) COS‐7 cells transfected as indicated were stimulated with 1 μM 3‐MC and then used for the luciferase reporter gene analysis. (C,D) Hepa1c1c7 cells expressing constitutively active mutants of Gα were stimulated with or without 1 μM 3‐MC for 24 h, and then the luciferase reporter gene analysis was performed. In (D), Hepa1c1c7 cells were transfected with various amounts of Gα13Q226L. (E) Hepa1c1c7 cells harbouring a reporter gene were pretreated with various concentrations of LPA, and were then stimulated with 3‐MC and used for reporter gene analysis. (F) Hepa1c1c7 cells transfected with or without Gα13Q226L were treated with 1 μM 3‐MC for 12 h. The expression of CYP1A1 was analysed by the quantitative RT–PCR method. Error bar means s.e. (n=3, *P<0.05). 3‐MC, 3‐methyl cholanthrene; AhR, aryl hydrocarbon receptor; GST, glutathione S‐transferase; HA, haemagglutinin; LPA, lysophosphatidic acid; RT–PCR, reverse transcription–PCR. Asuka Nakata et al. EMBO Rep. 2009;10:622-628 © as stated in the article, figure or figure legend