Project description:SigE is a global regulator for sugar catabolism in a unicelluar cyanobacterium Synechocystis sp. PCC6803. We constructed SigE-overexpressing strain, named GOX50, by introducing the sigE genes fusing psbAII promoter by homologous recombination. The transcript profiles of parental wild-type strain GT and GOX50 were compared by microarray CyanoChip (Takrara bio.). Experiments were performed by three times with biologically independent RNA. The results showed that genes for the oxidaditive pentose phosphate pathway and glycogen catabolism were induced by SigE overexpression. Total RNAs from three independent wild-type (GT) and three independent SigE-overexpression strains were differently labeled by Cy3 or Cy5, followed by hybridyzation on CyanoChip.
Project description:Sigma factor E (SigE) controls the expression of genes that are essential for Mtb virulence. In this work, we have identified the SigE regulon during infection of macrophages Our results indicate that SigE regulates the expression of genes involved in the maintenance of Mtb cell envelope integrity and function (i.e., detoxification and secretion). Keywords: strains comparison
Project description:SigE is a global regulator for sugar catabolism in a unicelluar cyanobacterium Synechocystis sp. PCC6803. We constructed SigE-overexpressing strain, named GOX50, by introducing the sigE genes fusing psbAII promoter by homologous recombination. The transcript profiles of parental wild-type strain GT and GOX50 were compared by microarray CyanoChip (Takrara bio.). Experiments were performed by three times with biologically independent RNA. The results showed that genes for the oxidaditive pentose phosphate pathway and glycogen catabolism were induced by SigE overexpression.
