Plasmid-Encoded ComI Inhibits Competence in the Ancestral 3610 Strain of Bacillus subtilis
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چکیده
منابع مشابه
Plasmid-encoded ComI inhibits competence in the ancestral 3610 strain of Bacillus subtilis.
Natural competence is a process by which bacteria construct a membrane-associated machine for the uptake and integration of exogenous DNA. Many bacteria harbor genes for the DNA uptake machinery and yet are recalcitrant to DNA uptake for unknown reasons. For example, domesticated laboratory strains of Bacillus subtilis are renowned for high-frequency natural transformation, but the ancestral B....
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Bacillus subtilis is a Gram-positive bacterium that serves as an important experimental system. B. subtilis NCIB 3610 is an undomesticated strain that exhibits phenotypes lost from the more common domesticated laboratory strains. Here, we announce the complete genome sequence of DK1042, a genetically competent derivative of NCIB 3610.
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Bacillus subtilis biofilm formation is tightly regulated by elaborate signaling pathways. In contrast to domesticated lab strains of B. subtilis which form smooth, essentially featureless colonies, undomesticated strains such as NCIB 3610 form architecturally complex biofilms. NCIB 3610 also contains an 80-kb plasmid absent from laboratory strains, and mutations in a plasmid-encoded homolog of ...
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Plasmid pGP1 carrying a penP-lacZ fusion was used to study structural plasmid instability in Bacillus subtilis. In only one of 28 sequenced deletion junction points in the penP-lacZ region short direct repeats (10 bp) and flanking imperfect inverted repeats (12 bp) were associated with endpoints. In 27 deletions no repeated sequences of more than 3 bp were present at the endpoints. In 15 of the...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 2013
ISSN: 0021-9193
DOI: 10.1128/jb.00696-13