Results 31 to 40 of about 28,880 (211)

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

, 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.
Mizrahi, Valerie, Bhavna G Gordhan, Vickery Arcus, Diane Kuhnert, Valerie Mizrahi, Ahidjo, Bintou Ahmadou, Kuhnert, Diane, Edith E Machowski, Machowski E.E., Joanna L. Mckenzie, Garth L. Abrahams, Kuhnert D., Machowski Edith E., Abrahams, Garth L., Ahidjo B.A., Bintou Ahmadou Ahidjo, Gordhan, Bhavna G., Arcus V., Garth L Abrahams, Abrahams G.L., Machowski, Edith E., Mizrahi V., Kuhnert Diane, Ahidjo Bintou Ahmadou, McKenzie Joanna L., Arcus Vickery, Mizrahi Valerie, Edith E. Machowski, Abrahams Garth L., Gordhan B.G., McKenzie J.L., Gordhan Bhavna G., Bhavna G, Arcus, Vickery L., Bhavna G. Gordhan, McKenzie, Joanna Leigh, Joanna L McKenzie   +36 more
core   +1 more source

The vapB-vapC operon of Acidovorax citrulli functions as a bona-fide toxin-antitoxin module

Frontiers in Microbiology, 2016
Toxin–antitoxin systems are commonly found on plasmids and chromosomes of bacteria and archaea. These systems appear as biscystronic genes encoding a stable toxin and a labile antitoxin, which protects the cells from the toxin’s activity. Under specific,
Reut eShavit, Mario eLebendiker, Zohar ePasternak, Saul eBurdman, Yael eHelman   +4 more
doaj   +1 more source

Mycobacterium tuberculosis Rv0229c Shows Ribonuclease Activity and Reveals Its Corresponding Role as Toxin VapC51

Antibiotics, 2023
The VapBC system, which belongs to the type II toxin–antitoxin (TA) system, is the most abundant and widely studied system in Mycobacterium tuberculosis.
Sung-Min Kang
doaj   +1 more source

TasA-tasB, a new putative toxin-antitoxin (TA) system from Bacillus thuringiensis pGI1 plasmid is a widely distributed composite mazE-doc TA system

BMC Genomics, 2006
Background Post-segregational killing systems are present in a large variety of microorganisms. When found on plasmids, they are described as addiction systems that act to maintain the plasmid during the partitioning of the cell.
Mahillon Jacques, Fico Sarah
doaj   +1 more source

RNA Regulated Toxin-Antitoxin Systems in Pathogenic Bacteria

Frontiers in Cellular and Infection Microbiology, 2021
The dynamic host environment presents a significant hurdle that pathogenic bacteria must overcome to survive and cause diseases. Consequently, these organisms have evolved molecular mechanisms to facilitate adaptation to environmental changes within the ...
David D. Sarpong, David D. Sarpong, David D. Sarpong, Erin R. Murphy, Erin R. Murphy, Erin R. Murphy   +5 more
doaj   +1 more source

Functional Characterization of the mazEF Toxin-Antitoxin System in the Pathogenic Bacterium Agrobacterium tumefaciens

Microorganisms, 2021
Agrobacterium tumefaciens is a pathogen of various plants which transfers its own DNA (T-DNA) to the host plants. It is used for producing genetically modified plants with this ability.
Wonho Choi, Yoshihiro Yamaguchi, Ji-Young Park, Sang-Hyun Park, Hyeok-Won Lee, Byung-Kwan Lim, Michael Otto, Masayori Inouye, Min-Ho Yoon, Jung-Ho Park   +9 more
doaj   +1 more source

Adenylylation of Gyrase and Topo IV by FicT Toxins Disrupts Bacterial DNA Topology [PDF]

, 2015
Toxin-antitoxin (TA) modules are ubiquitous molecular switches controlling bacterial growth via the release of toxins that inhibit cell proliferation.
Gerdes, K., Glatter, Timo, Dehio, Christoph, Alexander Harms, Goepfert, A., Scheu, P., Kenn Gerdes, Glatter, T. ; https://orcid.org/, Schirmer, T., Harms, Alexander, Christoph Dehio, Harms, A., Timo Glatter, Stanger, Frédéric Valentin, Gerdes, Kenn, Dehio, C., Schirmer, Tilman, Harms, Alexander; id_orcid, de Jong, I., de Jong, Imke Greet, Stanger, F., Tilman Schirmer, Patrick Daniel Scheu, Arnaud Goepfert, Scheu, Patrick Daniel, Frédéric Valentin Stanger, Imke Greet de Jong, Goepfert, Arnaud   +27 more
core   +1 more source

Hypothetical Functions of Toxin-Antitoxin Systems [PDF]

Journal of Bacteriology, 2007
Toxin-antitoxin systems are very commonly found both on large, low-copy plasmids, where they increase effective stability ([35][1]), and on bacterial chromosomes, where their function has been the subject of considerable speculation.
openaire   +2 more sources

The Toxin-Antitoxin System of the Streptococcal Plasmid pSM19035 [PDF]

Journal of Bacteriology, 2005
ABSTRACT pSM19035 of the pathogenic bacterium Streptococcus pyogenes is a low-copy-number plasmid carrying erythromycin resistance, stably maintained in a broad range of gram-positive bacteria. We show here that the ω -ε-ζ operon of this plasmid constitutes a novel proteic plasmid ...
Urszula, Zielenkiewicz, Piotr, Ceglowski
openaire   +2 more sources

Multiple Toxin-Antitoxin Systems in Mycobacterium tuberculosis [PDF]

Toxins, 2014
The hallmark of Mycobacterium tuberculosis is its ability to persist for a long-term in host granulomas, in a non-replicating and drug-tolerant state, and later awaken to cause disease. To date, the cellular factors and the molecular mechanisms that mediate entry into the persistence phase are poorly understood. Remarkably, M.
Ambre Sala, Patricia Bordes, Pierre Genevaux   +2 more
openaire   +3 more sources