Project description:We report the transcriptome of Burkholderia pseudomallei type VI secretion regulator TctR mutant grown in rich media compared to wild type. The RNA-seq studies confirmed the role of TctR as a negative regulator of T6SS-2, a positive regulator of T6SS-6 and suggest a potential role in regulation of the T6SS-3 and T6SS-4 gene clusters.
Project description:We used RNA-seq to determine transcriptional profiles of whole guts or IPCs isolated from guts infected with wild type or type VI secretion system deficient Vibrio cholerae. We found significant differences between guts and progenitor cells infected wild type or type VI secretion system deficient Vibrio cholerae.
Project description:To determine whether the Vibrio cholerae type VI secretion system (T6SS) is functional during animal infection, derivatives of V52 were used to infect infant mice. In this infection model, a diarrheal response occurred and effector translocation could be detected. These host responses were dependent on a functional T6SS and on the actin cross-linking effector domain of VgrG-1. Gene expression and histological studies showed innate immune activation and immune cell infiltration in the intestinal lumen.
Project description:In order to identify secreted proteins associated with the type VI secretion system (T6SS), the secretome of a wild-type A. baumannii AB307 0294 T6SS active strain was compared to the secretome of a T6SS inactive mutant strain, A. baumannii AB307-0294ΔtssM.