Results 41 to 50 of about 76,042 (156)

Bacterial polysaccharide–protein conjugate vaccines [PDF]

open access: yesPure and Applied Chemistry, 1999
The age-related and T-cell independent properties of polysaccharides limit their use as vaccines. These limitations are overcome by covalently binding polysaccharides to proteins to form conjugates. Widespread use of Haemophilus influenzae type b (Hib) conjugates has virtually eliminated systemic infection caused by this pathogen, notably meningitis ...
J. B. Robbins   +3 more
openaire   +1 more source

Conjugation Inhibitors Effectively Prevent Plasmid Transmission in Natural Environments

open access: yesmBio, 2021
Plasmid conjugation is a major route for the spread of antibiotic resistance genes. Inhibiting conjugation has been proposed as a feasible strategy to stop or delay the propagation of antibiotic resistance genes.
Carolina Palencia-Gándara   +6 more
doaj   +1 more source

Conjugation across Bacillus cereus and kin: A review

open access: yesFrontiers in Microbiology, 2022
Horizontal gene transfer (HGT) is a major driving force in shaping bacterial communities. Key elements responsible for HGT are conjugation-like events and transmissible plasmids.
Pauline Hinnekens   +3 more
doaj   +1 more source

Nutrition Related Stress Factors Reduce the Transfer of Extended-Spectrum Beta-Lactamase Resistance Genes between an Escherichia coli Donor and a Salmonella Typhimurium Recipient In Vitro

open access: yesBiomolecules, 2019
The transfer of extended spectrum β-lactamase (ESBL)-genes occurs frequently between different bacteria species. The aim of this study was to investigate the impact of nutrition related stress factors on this transfer.
Eva-Maria Saliu   +3 more
doaj   +1 more source

Bacterial conjugation: Running rings around DNA [PDF]

open access: yesCurrent Biology, 2001
Helicases are active in many aspects of DNA replication, recombination, repair and transcription. An integral membrane bacterial protein assembly involved in the transfer of DNA between cells has been shown to resemble a ring helicase, suggesting that it hydrolyzes ATP to pump DNA through a central channel.
openaire   +2 more sources

Variability of plasmid fitness effects contributes to plasmid persistence in bacterial communities

open access: yesNature Communications, 2021
The variability of plasmid fitness effects on wild-type bacterial hosts have been largely unknown until this study, which shows that plasmid persistence increases with bacterial diversity and becomes less dependent on conjugation.
Aida Alonso-del Valle   +8 more
doaj   +1 more source

Encounter rates and engagement times limit the transmission of conjugative plasmids.

open access: yesPLoS Genetics
Plasmid conjugation is a major route for the dissemination of antibiotic resistances and adaptive genes among bacterial populations. Obtaining precise conjugation rates is thus key to understanding how antibiotic resistances spread.
Jorge Rodriguez-Grande   +5 more
doaj   +1 more source

A functional oriT in the Ptw plasmid of Burkholderia cenocepacia can be recognized by the R388 relaxase TrwC

open access: yesFrontiers in Molecular Biosciences, 2016
Burkholderia cenocepacia is both a plant pathogen and the cause of serious opportunistic infections, particularly in cystic fibrosis patients. B. cenocepacia K56-2 harbors a native plasmid named Ptw for its involvement in the Plant Tissue Watersoaking ...
Esther eFernandez-Gonzalez   +6 more
doaj   +1 more source

Recent developments in bacterial conjugate vaccines [PDF]

open access: yesJournal of Medical Microbiology, 1998
Study of the epidemiology of childhood infection reveals that the brunt of disease for a number of invasive bacterial infections is borne by children under the age of 4 years. Haemophilus influenzae type b (Hib), Neisseria meningitidis and Streptococcus pneumoniae, the three most important causes of childhood meningitis, illustrate this phenomenon ...
openaire   +2 more sources

Small RNA GadY in Escherichia coli enhances conjugation system of IncP-1 by targeting SdiA

open access: yesFrontiers in Cellular and Infection Microbiology
Plasmid-mediated conjugation is a common mechanism for most bacteria to transfer antibiotic resistance genes (ARGs). The conjugative transfer of ARGs is emerging as a major threat to human beings.
Shebin Zhang   +26 more
doaj   +1 more source

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