Results 91 to 100 of about 9,494,692 (194)

Mechanistic insights into HipA‐mediated bacterial persistence: Role of initial cellular states and toxin expression kinetics

mLife, Volume 5, Issue 5, Page 651-664, October 2026.
Abstract Persistent bacteria subpopulations showing multidrug tolerance pose significant challenges to antibiotic therapy. While the HipBA toxin–antitoxin (TA) system is known to play a role in persister formation, existing studies predominantly focus on its kinase activity and intracellular regulatory pathways, with limited attention to the ...
Jing Zhao, Yixiao Xiong, Hongxia Zhao, Jin Wang, Xiaona Fang   +4 more
wiley   +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, Harms A, de Jong IG, Gerdes K, Stanger FV, Dehio C, Glatter T, Schirmer T, Scheu PD, Goepfert A   +36 more
core   +1 more source

Molecular Characterization of SehB, a Type II Antitoxin of Salmonella enterica Serotype Typhimurium: Amino Acid Residues Involved in DNA-Binding, Homodimerization, Toxin Interaction, and Virulence

Frontiers in Microbiology, 2020
Salmonella enterica serotype Typhimurium is a bacterium that causes gastroenteritis and diarrhea in humans. The genome of S. Typhimurium codes for diverse virulence factors, among which are the toxin-antitoxin (TA) systems.
Fernando Chimal-Cázares, Fernando Chimal-Cázares, Gabriela Hernández-Martínez, Gabriela Hernández-Martínez, Sabino Pacheco, Miguel A. Ares, Jorge Soria-Bustos, Jorge Soria-Bustos, Manuel Sánchez-Gutiérrez, Jeannett A. Izquierdo-Vega, Jose Antonio Ibarra, Jorge A. González-y-Merchand, Jean-Pierre Gorvel, Stéphane Méresse, Miguel A. De la Cruz   +14 more
doaj   +1 more source

A Retrospective Descriptive Analysis of Consultations Provided by the National Poisons Centre Relating to Medicines on the Aotearoa New Zealand Antidote Stocking Guideline, 2020–2025

Emergency Medicine Australasia, Volume 38, Issue 5, October 2026.
ABSTRACT Objective Many antidotes are relatively rare‐use, indication‐specific medicines with a variable evidence base. In Aotearoa New Zealand, there are no national statistics available on their use. This study aimed to characterize the numbers of cases and advice provided by the Aotearoa New Zealand National Poisons Centre (NZNPC) on the use of true
Eeva‐Katri Kumpula, William Boroughf
wiley   +1 more source

Toxin-Antitoxin Systems in the Mobile Genome of Acidithiobacillus ferrooxidans

PLoS ONE, 2014
Toxin-antitoxin (TA) systems are genetic modules composed of a pair of genes encoding a stable toxin and an unstable antitoxin that inhibits toxin activity. They are widespread among plasmids and chromosomes of bacteria and archaea. TA systems are known to be involved in the stabilization of plasmids but there is no consensus about the function of ...
Bustamante, Paula, Tello, Mario, Orellana, Omar   +2 more
openaire   +7 more sources

Association Between Toxin-Antitoxin Systems and Biofilm Formation [PDF]

Jundishapur Journal of Microbiology, 2014
Toxin-antitoxin (TA) systems are found on the chromosomes and plasmids of many Bacteria such as Escherichia coli. The roles of TA systems in bacteria are enigmatic. Multiple biological functions of TA systems are proposed including growth modulation, persistence, and biofilm formation. Biofilms of E.
Karimi, S., Ghafourian, S., Kalani, M. T., Jalilian, F. A., Hemati, S., Sadeghifard, N.   +5 more
openaire   +2 more sources

RHS-elements function as type II toxin-antitoxin modules that regulate intra-macrophage replication of Salmonella Typhimurium.

PLoS Genetics, 2020
RHS elements are components of conserved toxin-delivery systems, wide-spread within the bacterial kingdom and some of the most positively selected genes known. However, very little is known about how Rhs toxins affect bacterial biology.
Magnus Stårsta, Disa L Hammarlöf, Marcus Wäneskog, Susan Schlegel, Feifei Xu, Arvid Heden Gynnå, Malin Borg, Sten Herschend, Sanna Koskiniemi   +8 more
doaj   +1 more source

A Review on Cyanidin‐3‐O‐glucoside Antioxidant Activity, Food Technology Applications and Therapeutic Uses

Journal of Food Science, Volume 91, Issue 10, October 2026.
ABSTRACT Anthocyanins are plant derived biomolecules that play roles in pollination and protection against ultraviolet light (UV) radiation, as well as reactive oxygen and nitrogen species (ROS and RNS, respectively). Cyanidin 3‐O‐glucoside (C3G), a common anthocyanin in the diet, exhibits antioxidant capacity that depends on its chemical structure ...
Eiko Osawa‐Martínez, Yury Rodríguez‐Yáñez, Benito Minjarez, Salvador Mena‐Munguía, Irais Poblete‐Naredo, Adolfo Sierra‐Santoyo, Arnulfo Albores   +6 more
wiley   +1 more source

The VapBC-4 Characterization Indicates It Is a Bona Fide Toxin-Antitoxin Module of Leptospira interrogans: Initial Evidence for a Role in Bacterial Adaptation

Microorganisms
Toxin-antitoxin (TA) systems are one of the bacterial adaptation mechanisms to adverse conditions. Leptospira interrogans serovar Copenhageni contains nine putative TA systems.
Bruna Oliveira Pigatto Azevedo, Deborah Kohn Damiano, Aline Florencio Teixeira, Ana Lucia Tabet Oller Nascimento, Luis Guilherme Virgilio Fernandes, Alexandre Paulo Yague Lopes   +5 more
doaj   +1 more source

Asking the 5 W's for designing next‐generation bioprocessing

AIChE Journal, Volume 72, Issue 9, September 2026.
Abstract Biotechnology is expanding beyond traditional, centralized fermentation and toward next‐generation bioprocessing paradigms that emphasize flexible deployment outside the laboratory with application‐specific performance. However, many bioprocesses fail to translate beyond proof‐of‐concept into industrially viable systems because early design ...
Sangdo Yook, Karoline Maria Vieira Nogueira, Raj Sukumar, Jenna Miller, Hal S. Alper   +4 more
wiley   +1 more source