Results 31 to 40 of about 756 (133)

Role of vapBC toxin–antitoxin loci in the thermal stress response of Sulfolobus solfataricus

open access: yesBiochemical Society Transactions, 2009
TA (toxin–antitoxin) loci are ubiquitous in prokaryotic microorganisms, including archaea, yet their physiological function is largely unknown. For example, preliminary reports have suggested that TA loci are microbial stress-response elements, although ...
C. Cooper   +4 more
semanticscholar   +4 more sources

Crystal Structure of the VapBC Toxin–Antitoxin Complex from Shigella flexneri Reveals a Hetero-Octameric DNA-Binding Assembly

open access: yesJournal of Molecular Biology, 2011
Toxin–antitoxin (TA) loci are common in archaea and prokaryotes and allow cells to rapidly adapt to changing environmental conditions through release of active regulators of metabolism.
C. Dienemann   +4 more
semanticscholar   +4 more sources

Genomic characterization of Microbacterium meiriae sp. nov., a novel bacterium isolated from the International Space Station [PDF]

open access: yesScientific Reports
During the microbial surveillance of the International Space Station (ISS) in April 2018, four Gram-stain positive bacterial strains, designated as F6_8S_P_2BT, F6_8S_P_3A, F6_8S_P_3B and F6_8S_P_3C, belonging to the genus Microbacterium were isolated ...
Fathi Karouia   +7 more
doaj   +2 more sources

Les systèmes Toxine-Antitoxine VapBC : des régulateurs de la symbiose fixatrice d'azote Rhizobium-Légumineuse

open access: yes
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 ...
Camille Syska
semanticscholar   +2 more sources

VapC toxins from Mycobacterium tuberculosis are ribonucleases that differentially inhibit growth and are neutralized by cognate VapB antitoxins. [PDF]

open access: yesPLoS ONE, 2011
The chromosome of Mycobacterium tuberculosis (Mtb) encodes forty seven toxin-antitoxin modules belonging to the VapBC family. The role of these modules in the physiology of Mtb and the function(s) served by their expansion are unknown.
Bintou Ahmadou Ahidjo   +7 more
doaj   +1 more source

The endogenous Coxiella burnetii plasmid encodes a functional toxin–antitoxin system

open access: yesMolecular Microbiology, Volume 118, Issue 6, Page 744-764, December 2022., 2022
Coxiella burnetii is an obligate intracellular bacterium and causative agent of Q fever. Here we report that the C. burnetii genome encodes 11 toxin–antitoxin systems, which is highly unusual for intracellular bacteria, and that one TA system is encoded on the large endogenous plasmid found in almost all C. burnetii isolates.
Shaun Wachter   +7 more
wiley   +1 more source

RepC_soli: a novel promiscuous plasmid type of Rhodobacteraceae mediates horizontal transfer of antibiotic resistances in the ocean

open access: yesEnvironmental Microbiology, Volume 23, Issue 9, Page 5395-5411, September 2021., 2021
Summary Alphaproteobacteria are typically characterized by a multipartite genome organization with a chromosome, stable chromids and accessory plasmids. Extrachromosomal elements determine the lifestyle of roseobacters and their horizontal transfer was previously correlated with rapid adaptations to novel ecological niches.
Lukas Birmes   +2 more
wiley   +1 more source

Legume–rhizobium dance: an agricultural tool that could be improved?

open access: yesMicrobial Biotechnology, Volume 14, Issue 5, Page 1897-1917, September 2021., 2021
The present review describes the mechanisms involved in the regulation of the entire legume‐rhizobium symbiotic process and the strategies and tools of bacteria for reaching the nitrogen‐fixing state inside the nodule. Also, we revised different approaches to improve the nodulation process for a better crop yield.
Laura A. Basile, Viviana C. Lepek
wiley   +1 more source

Preliminary Crystallographic Analysis of Recombinant VapBC-15 Toxin–Antitoxin Complex From Mycobacterium tuberculosis

open access: yesActa Crystallographica Section F: Structural Biology Communications, 2013
Uddipan Das   +2 more
exaly   +2 more sources

Transcriptional and proteolytic regulation of the toxin-antitoxin locus vapBC10 (ssr2962/slr1767) on the chromosome of Synechocystis sp. PCC 6803. [PDF]

open access: yesPLoS ONE, 2013
VapBC toxin-antitoxin (TA) systems are defined by the association of a PIN-domain toxin with a DNA-binding antitoxin, and are thought to play important physiological roles in bacteria and archaea.
Degang Ning   +5 more
doaj   +1 more source

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