Due to an increase in serious infections and a lack of efficient therapies, Klebsiella pneumoniae has recently gained more recognition. The production carbapenemases is one the most common strategies by which K. acquire resistance carbapenems considered last resort antibiotics. Previously collected isolates from different clinical settings on basis their genetic profile, mainly absence presence...

The immunopotentiating activity of neisserial porins, the major outer membrane protein of the pathogenic Neisseria, is mediated by its ability to stimulate B cells and up-regulate the surface expression of B7-2. This ability is dependent on MyD88 and Toll-like receptor (TLR)2 expression, as demonstrated by a lack of a response by B cells from MyD88 or TLR2 knockout mice to the porins. Using pre...

Gram-negative bacteria cause the majority of highly drug-resistant bacterial infections. To cross outer membrane complex cell envelope, antibiotics permeate through porins, trimeric channel proteins that enable exchange small polar molecules. Mutations in porins contribute to development phenotypes. In this work, we show a single point mutation porin PorB from Neisseria meningitidis, causative ...

Caulobacter crescentus is an oligotrophic bacterium that lives in dilute organic environments such as soil and freshwater. This bacterium represents an interesting model for cellular differentiation and regulation because daughter cells after division have different forms: one is motile while the other is non-motile and can adhere to surfaces. Interestingly, the known genome of C. crescentus do...

Avian pathogenic Escherichia coli is an important pathogen causes systemic infections in avian species and large economic losses in poultry industry worldwide. The functional role of porins during the infection and their mechanisms of interaction with host tissues for adhesion to and invasion are poorly understood. However, whether porins play a role in infection remains unclear. In this study ...