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Diverse type VI secretion phospholipases are functionally plastic antibacterial effectors
TLDR
The surprising finding that virulence-associated phospholipases can serve as specific antibacterial effectors suggests that interbacterial interactions are a relevant factor driving the continuing evolution of pathogenesis.
A new Vibrio cholerae sRNA modulates colonization and affects release of outer membrane vesicles
TLDR
VrrA is the first sRNA known to control OMV formation, and its findings suggest that VrrA contributes to bacterial fitness in certain stressful environments, and modulates infection of the host intestinal tract.
Quorum Sensing Regulation of the Two hcp Alleles in Vibrio cholerae O1 Strains
TLDR
It is shown that serotype O1 strains of V. cholerae do express Hcp which is regarded as one of the important T6SS components and isone of the secreted substrates in non-O1non-O139 V.cholerae isolates.
Vibrio cholerae O1 Strain TSI-4 Produces the Exopolysaccharide Materials That Determine Colony Morphology, Stress Resistance, and Biofilm Formation
TLDR
The data indicated that an exopolysaccharide material on the surface of the rugose strain promoted biofilm formation and resistance to the effects of two stressing agents, as well as acquiring resistance to osmotic and oxidative stress.
The Iron-Binding Protein Dps Confers Hydrogen Peroxide Stress Resistance to Campylobacter jejuni
TLDR
It is proposed that this iron-binding protein in C. jejuni plays an important role in protection against hydrogen peroxide stress by sequestering intracellular free iron and is expressed constitutively to cope with the harmful effect of hydrogenperoxide stress on this microaerophilic organism without delay.
Horseshoe crab acetyl group-recognizing lectins involved in innate immunity are structurally related to fibrinogen.
TLDR
The observations clearly show that the horseshoe crab has fibrinogen-related molecules in hemolymph plasma and that they function as nonself-recognizing lectins.
Biochemical and functional characterization of Helicobacter pylori vesicles
TLDR
Mechanisms for intimate H. pylori vesicle–host interactions are explored and it is found that the vesicles carry effector‐promoting properties that are important to disease development.
Outer membrane vesicle-mediated release of cytolethal distending toxin (CDT) from Campylobacter jejuni
TLDR
The results strongly suggest that the release of outer membrane vesicles is functioning as a route of C. jejuni to deliver all the subunits of CDT toxin to the surrounding environment, including infected host tissue.
Type VI secretion modulates quorum sensing and stress response in Vibrio anguillarum.
TLDR
A new role for T6S is identified in Vibrio anguillarum, a marine bacterium that causes a hemorrhagic septicemia in fish and it is hypothesized this role to be a signal sensing mechanism that modulates the expression of regulators of the general stress response.
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