Chapter 2: Differentiation of function among the RsbR paralogs in the general stress response of Bacillus subtilis with regard to light perception
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Differentiation of function among the RsbR paralogs in the general stress response of Bacillus subtilis with regard to light perception.
The general stress response of Bacillus subtilis can be activated by a wide range of signals, including low intensities of visible light. It is regulated by a dedicated σ factor via a complex signal transduction pathway that makes use of stressosomes: hetero-oligomeric complexes that include one or more of the RsbR proteins (RsbRA, RsbRB, RsbRC, and RsbRD). The response to blue light is mediate...
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Bacillus subtilis has found to respond the signals of environmental and metabolic stress by inducing over 40 general stress genes which are under the control of the sigma B transcription factor. Sigma B is an alternative sigma-factor in Bacillus subtilis. It mediates the response of the cell to a variety of physical insults. General stress response of Bacillus subtilis is regulated directly by ...
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The general stress response of Bacillus subtilis is controlled by the activity state of the sigma(B) transcription factor. Physical stress is communicated to sigma(B) via a large-molecular-mass (>10(6)-Da) structure (the stressosome) formed by one or more members of a family of homologous proteins (RsbR, YkoB, YojH, YqhA). The positive regulator (RsbT) of the sigma(B) stress induction pathway i...
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Bacillus subtilis has developed an intricate signal transduction cascade to respond to the imposition of a variety of stresses on the cell. Reversible protein phosphorylation and the formation of alternative protein-protein complexes modulate the activity of sigma(B), the RNA polymerase sigma factor subunit responsible for the transcription of the general stress response genes. Some of the regu...
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The general stress regulon of Bacillus subtilis is controlled by σ(B), a transcription factor that is activated by physical or nutritional stress. In B. subtilis, each of these two stresses is communicated to the primary σ(B) regulators by distinct pathways. Physical stress activation of σ(B) involves a large-molecular-mass (>10(6)-Da) structure (stressosome) formed by one or more homologous pr...
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