Physiological proteomics and stress/starvation responses in Bacillus subtilis and Staphylococcus aureus

Michael Hecker, Alexander Reder, Stephan Fuchs, Martin Pagels, Susanne Engelmann
Research in Microbiology 2009, 160 (4): 245-58
Gel-based proteomics is a useful approach for visualizing the responses of bacteria to stress and starvation stimuli. In order to face stress/starvation, bacteria have developed very complicated gene expression networks. A proteomic view of stress/starvation responses, however, is only a starting point which should promote follow-up studies aimed at the comprehensive description of single regulons, their signal transduction pathways on the one hand, and their adaptive functions on the other, and finally their integration into complex gene expression networks. This "road map of physiological proteomics" will be demonstrated for the general stress regulon controlled by sigma(B) in Bacillus subtilis and the oxygen starvation response with Rex as a master regulator in Staphylococcus aureus.

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