Sigma 29-like protein is a common sporulation-specific element in bacteria of the genus Bacillus
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منابع مشابه
Sporulation protein SpoIVFB from Bacillus subtilis enhances processing of the sigma factor precursor Pro-sigma K in the absence of other sporulation gene products.
Processing of inactive pro-sigma K to active sigma K in the mother cell compartment of sporulating Bacillus subtilis is governed by a signal transduction pathway emanating from the forespore and involving SpoIVFB in the mother cell. Coexpression of spoIVFB and sigK (encoding pro-sigma K) genes in growing B. subtilis or Escherichia coli enhanced pro-sigma K processing in the absence of other spo...
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Penicillin-binding protein (PBP) 5* is produced by Bacillus subtilis only during sporulation and is believed to be required for synthesis of the peptidoglycan-like cortex layer of the spore. The structural gene (dacB) for PBP 5* was insertionally mutagenized by integration of a plasmid bearing an internal fragment of the gene, and the phenotype of the null mutant was characterized. The mutant h...
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As Bacillus subtilis proceeds through sporulation, the principal vegetative cell sigma subunit (sigma(A)) persists in the cell but is replaced in the extractable RNA polymerase (RNAP) by sporulation-specific sigma factors. To explore how this holoenzyme changeover might occur, velocity centrifugation techniques were used in conjunction with Western blot analyses to monitor the associations of R...
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Two highly similar RNA polymerase sigma subunits, σ(F) and σ(G), govern the early and late phases of forespore-specific gene expression during spore differentiation in Bacillus subtilis. σ(F) drives synthesis of σ(G) but the latter only becomes active once engulfment of the forespore by the mother cell is completed, its levels rising quickly due to a positive feedback loop. The mechanisms that ...
متن کاملStructure and function in a Bacillus subtilis sporulation-specific sigma factor: molecular nature of mutations in spoIIAC.
The spoIIAC gene was cloned from chromosomal DNA of seven spoIIAC mutants of Bacillus subtilis, and the complete sequence of the gene was determined for each mutant. Three of the mutants proved to have chain-terminating mutations (one of which, previously shown to be suppressible by sup-3, was identified as amber); these led in every case to complete failure either to manufacture spores or to s...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1985
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.164.3.1356-1358.1985