Results 61 to 70 of about 756 (133)

The ntrPR Operon of Sinorhizobium meliloti Is Organized and Functions as a Toxin-Antitoxin Module

open access: yesMolecular Plant-Microbe Interactions, 2006
The chromosomal ntrPR operon of Sinorhizobium meliloti encodes a protein pair that forms a toxin-antitoxin (TA) module, the first characterized functional TA system in Rhizobiaceae. Similarly to other bacterial TA systems, the toxin gene ntrR is preceded
Monica Bodogai   +5 more
doaj   +1 more source

Insights into dynamics of mobile genetic elements in hyperthermophilic environments from five new Thermococcus plasmids.

open access: yesPLoS ONE, 2013
Mobilome of hyperthermophilic archaea dwelling in deep-sea hydrothermal vents is poorly characterized. To gain insight into genetic diversity and dynamics of mobile genetic elements in these environments we have sequenced five new plasmids from different
Mart Krupovic   +4 more
doaj   +1 more source

Characterization of the Deep-Sea Streptomyces sp. SCSIO 02999 Derived VapC/VapB Toxin-Antitoxin System in Escherichia coli

open access: yesToxins, 2016
Toxin-antitoxin (TA) systems are small genetic elements that are ubiquitous in prokaryotes. Most studies on TA systems have focused on commensal and pathogenic bacteria; yet very few studies have focused on TAs in marine bacteria, especially those ...
Yunxue Guo   +4 more
doaj   +1 more source

Characterization of the genetic environment of blaESBL genes, integrons and toxin-antitoxin systems identified on large transferrable plasmids in multi-drug resistant Escherichia coli

open access: yesFrontiers in Microbiology, 2015
-Objectives:Previously 14 conjugative plasmids from multi-drug resistant (MDR) Escherichia coli from healthy humans and food-producing animals in Switzerland were sequenced.
JUAN eWANG   +5 more
doaj   +1 more source

Characterization and comparative overview of complete sequences of the first plasmids of Pandoraea across clinical and non-clinical strains

open access: yesFrontiers in Microbiology, 2016
To date, information on plasmid analysis in Pandoraea spp. is scarce. To address the gap of knowledge on this, the complete sequences of eight plasmids from Pandoraea spp.
Delicia Yong   +3 more
doaj   +1 more source

Comprehensive functional analysis of Mycobacterium tuberculosis toxin-antitoxin systems: implications for pathogenesis, stress responses, and evolution.

open access: yesPLoS Genetics, 2009
Toxin-antitoxin (TA) systems, stress-responsive genetic elements ubiquitous in microbial genomes, are unusually abundant in the major human pathogen Mycobacterium tuberculosis. Why M.
Holly R Ramage   +2 more
doaj   +1 more source

Genome sequencing of Mycobacterium pinnipedii strains: genetic characterization and evidence of superinfection in a South American sea lion (Otaria flavescens)

open access: yesBMC Genomics, 2019
Background Mycobacterium pinnipedii, a member of the Mycobacterium tuberculosis Complex (MTBC), is capable of infecting several host species, including humans.
Taiana T. Silva-Pereira   +7 more
doaj   +1 more source

Toxin–Antitoxin Modules: Genetic Elements with Many Faces and Functions

open access: yesBacteria
Toxin–antitoxin (TA) modules represent sophisticated regulatory networks that have evolved from simple plasmid maintenance factors into multifunctional genetic modules orchestrating bacterial stress responses, pathogenesis, and ecological adaptation ...
Aayush Bahl   +5 more
doaj   +1 more source

The VapBC Toxin-Antitoxin systems : regulators of the nitrogen-fixing symbiosis Rhizobium-Legume

open access: yes, 2020
Lors de la symbiose fixatrice d’azote entre la légumineuse modèle Medicago truncatula et la rhizobiacée Sinorhizobium meliloti, les bactéries, différenciées en bactéroïdes dans la nodosité, réduisent l’azote atmosphérique (N2) en ammoniac (NH3), directement assimilable par la plante.
openaire   +1 more source

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