Regulatory Small RNA Qrr2 Is Expressed Independently of Sigma Factor-54 and Can Function as the Sole Qrr Small RNA To Control Quorum Sensing in Vibrio parahaemolyticus.

Abstract excerpt

Bacterial cells alter gene expression in response to changes in population density in a process called quorum sensing (QS). In Vibrio harveyi, LuxO, a low-cell-density activator of sigma factor-54 (RpoN), is required for transcription of five noncoding regulatory small RNAs (sRNAs), Qrr1 to Qrr5, which each repress translation of the master QS regulator, LuxR. Vibrio parahaemolyticus, the leading cause of...

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