Project description:Caulobacter crescentus is unique in that it has two homologous, seemingly redundant outer membrane proteins, RsaFa and RsaFb, that, together with other components, form a type I protein translocation pathway for S-layer export. RsaFa and RsaFb are required to prevent intracellular accumulation and aggregation of the S-layer protein RsaA; deletion of RsaFa and RsaFb led to a general growth defect and lowered cellular fitness. We show that loss of both RsaFa and RsaFb led to accumulation of insoluble RsaA in the cytoplasm, which in turn caused upregulation of a number of genes involved in protein mis-folding and degradation pathways. These findings provide new insight into the requirement for RsaFa and RsaFb in cellular fitness and tolerance to antimicrobial agents and further our understanding of the S-layer export mechanism on both the transcriptional and translational levels in C. crescentus.
Project description:Analysis of the Caulobacter crescentus Zur regulon reveals novel insights in zinc acquisition by TonB-dependent outer membrane proteins
Project description:This SuperSeries is composed of the following subset Series: GSE25996: Expression data from Caulobacter crescentus starved for carbon GSE25997: Expression data from Caulobacter crescentus (syn. C. vibrioides) swarmer and stalked cells starved for carbon GSE25998: Expression data from WT, DSigT and DSigU Caulobacter crescentus (syn. C. vibrioides) starved for carbon Refer to individual Series
