Results 11 to 20 of about 48,883 (257)

The coevolution of toxin and antitoxin genes drives the dynamics of bacterial addiction complexes and intragenomic conflict [PDF]

open access: yes, 2012
Bacterial genomes commonly contain ‘addiction’ gene complexes that code for both a toxin and a corresponding antitoxin. As long as both genes are expressed, cells carrying the complex can remain healthy.
Brown, Sam P.   +3 more
core   +1 more source

Two VHH Antibodies Neutralize Botulinum Neurotoxin E1 by Blocking Its Membrane Translocation in Host Cells

open access: yesToxins, 2020
Botulinum neurotoxin serotype E (BoNT/E) is one of the major causes of human botulism, which is a life-threatening disease caused by flaccid paralysis of muscles. After receptor-mediated toxin internalization into motor neurons, the translocation domain (
Kwok-Ho Lam   +3 more
doaj   +1 more source

Medical Countermeasures against Ricin Intoxication

open access: yesToxins, 2023
Ricin toxin is a disulfide-linked glycoprotein (AB toxin) comprising one enzymatic A chain (RTA) and one cell-binding B chain (RTB) contained in the castor bean, a Ricinus species.
Christine Rasetti-Escargueil   +1 more
doaj   +1 more source

Toxin-Antitoxin Systems: A Key Role on Persister Formation in Salmonella enterica Serovar Typhimurium

open access: yesInfection and Drug Resistance, 2022
Made Rai Dwitya Wiradiputra,1,2 Piyatip Khuntayaporn,1,3 Krit Thirapanmethee,1,3 Mullika Traidej Chomnawang1,3 1Antimicrobial Resistance Interdisciplinary Group (AmRIG), Faculty of Pharmacy, Mahidol University, Bangkok, Thailand; 2Biopharmaceutical ...
Wiradiputra MRD   +3 more
doaj  

YoeB toxin is activated during thermal stress. [PDF]

open access: yes, 2015
Type II toxin-antitoxin (TA) modules are thought to mediate stress-responses by temporarily suppressing protein synthesis while cells redirect transcription to adapt to environmental change.
Garza-Sánchez, Fernando   +2 more
core   +1 more source

The role of small proteins in Burkholderia cenocepacia J2315 biofilm formation, persistence and intracellular growth [PDF]

open access: yes, 2019
Burkholderia cenocepacia infections are difficult to treat due to resistance, biofilm formation and persistence. B. cenocepacia strain J2315 has a large multi-replicon genome (8.06 Mb) and the function of a large fraction of (conserved) hypothetical ...
Braeckmans, Kevin   +12 more
core   +1 more source

The bacterial antitoxin HipB establishes a ternary complex with operator DNA and phosphorylated toxin HipA to regulate bacterial persistence [PDF]

open access: yes, 2014
Nearly all bacteria exhibit a type of phenotypic growth described as persistence that is thought to underlie antibiotic tolerance and recalcitrant chronic infections.
Behiels, Ester   +6 more
core   +2 more sources

Reassessing the Role of the Type II MqsRA Toxin-Antitoxin System in Stress Response and Biofilm Formation: mqsA Is Transcriptionally Uncoupled from mqsR

open access: yesmBio, 2019
Toxin-antitoxin (TA) systems are broadly distributed modules whose biological roles remain mostly unknown. The mqsRA system is a noncanonical TA system in which the toxin and antitoxins genes are organized in operon but with the particularity that the ...
Nathan Fraikin   +3 more
doaj   +1 more source

Rapid Identification of Secondary Structure and Binding Site Residues in an Intrinsically Disordered Protein Segment

open access: yesFrontiers in Genetics, 2021
Mycobacterium tuberculosis harbours nine toxin-antitoxin (TA) systems of the MazEF family. MazEF TA modules are of immense importance due to the perceived role of the MazF toxin in M. tuberculosis persistence and disease.
Soumyanetra Chandra   +2 more
doaj   +1 more source

A case of asymmetric cranial nerve palsy due to iatrogenic botulism [PDF]

open access: yesAsia Pacific Journal of Medical Toxicology, 2021
Introduction:Botulism is a rare but lethal disease and atypical clinical presentations of this disease are difficult to diagnose. We report a case of iatrogenic botulism who presented withasymmetric cranial nerve involvement.Case report:An eighteen year ...
Muhammad Akbar Baig, Joshua Nogar
doaj   +1 more source

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