Proteomic Analysis of the Spore Coats of Bacillus subtilis and Bacillus anthracis

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Proteomic analysis of the spore coats of Bacillus subtilis and Bacillus anthracis.

The outermost proteinaceous layer of bacterial spores, called the coat, is critical for spore survival, germination, and, for pathogenic spores, disease. To identify novel spore coat proteins, we have carried out a preliminary proteomic analysis of Bacillus subtilis and Bacillus anthracis spores, using a combination of standard sodium dodecyl sulfate-polyacrylamide gel electrophoresis separatio...

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Proteomic profiling and identification of immunodominant spore antigens of Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis.

Differentially expressed and immunogenic spore proteins of the Bacillus cereus group of bacteria, which includes Bacillus anthracis, Bacillus cereus, and Bacillus thuringiensis, were identified. Comparative proteomic profiling of their spore proteins distinguished the three species from each other as well as the virulent from the avirulent strains. A total of 458 proteins encoded by 232 open re...

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Proteomic characterization of spore coat protein mutants of Bacillus subtilis

Spore coat proteins play an important role in maintaining spore structure as well as the resistive capacity of the spores. Spore morphogenetic proteins are responsible for layering the proteinaceous layers during spore morphogenesis. Previous studies have analyzed the dependence of certain coat proteins on the well-known morphogenetic proteins such as SpoIVA, CotE, CotH etc. Yet many coat prote...

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Bacillus subtilis spore coat.

In response to starvation, bacilli and clostridia undergo a specialized program of development that results in the production of a highly resistant dormant cell type known as the spore. A proteinacious shell, called the coat, encases the spore and plays a major role in spore survival. The coat is composed of over 25 polypeptide species, organized into several morphologically distinct layers. Th...

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Morphogenesis of the Bacillus anthracis spore.

Bacillus spp. and Clostridium spp. form a specialized cell type, called a spore, during a multistep differentiation process that is initiated in response to starvation. Spores are protected by a morphologically complex protein coat. The Bacillus anthracis coat is of particular interest because the spore is the infective particle of anthrax. We determined the roles of several B. anthracis orthol...

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ژورنال

عنوان ژورنال: Journal of Bacteriology

سال: 2003

ISSN: 0021-9193,1098-5530

DOI: 10.1128/jb.185.4.1443-1454.2003