Diversity and evolutionary dynamics of spore-coat proteins in spore-forming species of Bacillales
نویسندگان
چکیده
منابع مشابه
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...
متن کاملInteractions between Bacillus subtilis early spore coat morphogenetic proteins.
When challenged by stresses such as starvation, the soil bacterium Bacillus subtilis produces an endospore surrounded by a proteinaceous coat composed of >70 proteins that are organized into three main layers: an amorphous undercoat, lightly staining lamellar inner coat and electron-dense outer coat. This coat protects the spore against a variety of chemicals or lysozyme. Mutual interactions of...
متن کاملA versatile nano display platform from bacterial spore coat proteins
Dormant bacterial spores are encased in a thick protein shell, the 'coat', which contains ∼70 different proteins. The coat protects the spore from environmental insults, and is among the most durable static structures in biology. Owing to extensive cross-linking among coat proteins, this structure has been recalcitrant to detailed biochemical analysis, so molecular details of how it assembles a...
متن کاملProperties of the Bacillus subtilis spore coat.
About 70% of the protein in isolated Bacillus subtilis spore coats was solubilized by treatment with a combination of reducing and denaturing agents at alkaline pH. The residue, consisting primarily of protein, was insoluble in a variety of reagents. The soluble proteins were resolved into at least seven bands by sodium dodecyl sulfate gel electrophoresis. About one-half of the total was four p...
متن کاملCharacterization of a major Bacillus anthracis spore coat protein and its role in spore inactivation.
A major Bacillus anthracis spore coat protein of 13.4 kDa, designated Cot alpha, was found only in the Bacillus cereus group. A stable ca. 30-kDa dimer of this protein was also present in spore coat extracts. Cot alpha, which is encoded by a monocistronic gene, was first detected late in sporulation, consistent with a sigma(K)-regulated gene. On the basis of immunogold labeling, the protein is ...
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ژورنال
عنوان ژورنال: Microbial Genomics
سال: 2020
ISSN: 2057-5858
DOI: 10.1099/mgen.0.000451