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The AinS signaling cascade controlling the lux operon. Proteins depicted in this simplified cascade are transcriptional regulators (AinR, LitR, LuxR), phosphorelay components (LuxO), or signal synthases (AinS, LuxI) (23). The quorum signals serving as coregulators include C8-HSL (C8) or 3OC6-HSL (C6).
