Signalling network with a bistable hysteretic switch controls developmental activation of the σFtranscription factor inBacillus subtilis
نویسندگان
چکیده
منابع مشابه
Signalling network with a bistable hysteretic switch controls developmental activation of the sigma transcription factor in Bacillus subtilis.
The sporulation process of the bacterium Bacillus subtilis unfolds by means of separate but co-ordinated programmes of gene expression within two unequal cell compartments, the mother cell and the smaller forespore. sigmaF is the first compartment-specific transcription factor activated during this process, and it is controlled at the post-translational level by a partner-switching mechanism th...
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Restriction-modification (RM) systems are extremely widespread among bacteria and archaea, and are often specified by mobile genetic elements. In type II RM systems, where the restriction endonuclease (REase) and protective DNA methyltransferase (MTase) are separate proteins, a major regulatory challenge is delaying expression of the REase relative to the MTase after RM genes enter a new host c...
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15 صفحه اولNegative regulation of the proteolytic activation of a developmental transcription factor in Bacillus subtilis.
The sporulation transcription factor sigmaK of Bacillus subtilis is controlled by a signal transduction pathway that operates at the level of the proteolytic processing of the inactive precursor protein pro-sigmaK. The conversion of pro-sigmaK to sigmaK requires the putative processing enzyme SpoIVFB and is governed by the regulatory proteins SpoIVFA and BofA. We engineered vegetative cells to ...
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We present biochemical evidence for an intercellular signal transduction pathway in B. subtilis. This pathway governs the conversion of the proprotein pro-sigma E to mature transcription factor sigma E. Proteolytic processing is mediated by the membrane protein SpollGA and is triggered by the inferred extracellular signal protein SpollR. A factor in conditioned medium from B. subtilis cells eng...
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ژورنال
عنوان ژورنال: Molecular Microbiology
سال: 2006
ISSN: 0950-382X
DOI: 10.1111/j.1365-2958.2006.05212.x