Results 21 to 30 of about 3,995 (211)

Mechanism of export of colicin E1 and colicin E3 [PDF]

open access: yesJournal of Bacteriology, 1979
The mechanism of export of colicins E1 and E3 was examined. Neither colicin E1, colicin E3, Nor colicin E3 immunity protein appears to be synthesized as a precursor protein with an amino-terminal extension. Instead, the colicins, as well as the colicin E3 immunity protein, appear to leave the cells where they are made, long after their synthesis, by a ...
K S, Jakes, P, Model
openaire   +2 more sources

Bacteriocin-Producing Escherichia coli Isolated from the Gastrointestinal Tract of Farm Animals: Prevalence, Molecular Characterization and Potential for Application

open access: yesMicroorganisms, 2022
Due to the spread of antibiotic-resistant bacteria, new alternatives to antibiotics and ways to prevent infections are being sought. Bacteriocin-producing bacteria are therefore attracting attention due to their probiotic potential as a safe alternative ...
Marina V. Kuznetsova   +3 more
doaj   +1 more source

Colicin E2 expression in Escherichia coli biofilms: Induction and regulation revisited

open access: yesCurrent Research in Microbial Sciences, 2022
Colicins, bacteriocins produced by the gram-negative bacterium Escherichia coli, are tightly regulated by the DNA damage response regulatory system (SOS), and are thus triggered at times of stress.
Bihter Bayramoglu-Güven   +3 more
doaj   +1 more source

Escherichia coli Isolated from Cases of Colibacillosis in Russian Poultry Farms (Perm Krai): Sensitivity to Antibiotics and Bacteriocins

open access: yesMicroorganisms, 2020
Escherichia coli strains isolated from case of colibacillosis in Russian poultry farms in the region of Perm Krai were analyzed for their sensitivity to main antibiotics and bacteriocins.
Marina V. Kuznetsova   +3 more
doaj   +1 more source

Colicin N Mediates Apoptosis and Suppresses Integrin-Modulated Survival in Human Lung Cancer Cells

open access: yesMolecules, 2020
The inherent limitations, including serious side-effects and drug resistance, of current chemotherapies necessitate the search for alternative treatments especially for lung cancer.
Wanatchaporn Arunmanee   +6 more
doaj   +1 more source

Colicin U, a novel colicin produced by Shigella boydii [PDF]

open access: yesJournal of Bacteriology, 1997
A novel colicin, designated colicin U, was found in two Shigella boydii strains of serovars 1 and 8. Colicin U was active against bacterial strains of the genera Escherichia and Shigella. Plasmid pColU (7.3 kb) of the colicinogenic strain S. boydii M592 (serovar 8) was sequenced, and three colicin genes were identified. The colicin U activity gene, cua,
D, Smajs, H, Pilsl, V, Braun
openaire   +2 more sources

Nuclease colicins and their immunity proteins.

open access: yes, 2012
It is more than 80 years since Gratia first described 'a remarkable antagonism between two strains of Escherichia coli'. Shown subsequently to be due to the action of proteins (or peptides) produced by one bacterium to kill closely related species with ...
Wojdyla, JA   +3 more
core   +2 more sources

Targeted Delivery of Narrow-Spectrum Protein Antibiotics to the Lower Gastrointestinal Tract in a Murine Model of Escherichia coli Colonization

open access: yesFrontiers in Microbiology, 2021
Bacteriocins are narrow-spectrum protein antibiotics that could potentially be used to engineer the human gut microbiota. However, technologies for targeted delivery of proteins to the lower gastrointestinal (GI) tract in preclinical animal models are ...
Nuria Carpena   +9 more
doaj   +1 more source

Bacteriocin production by mucosal bacteria in current and previous colorectal neoplasia

open access: yesBMC Cancer, 2020
Background Optimal therapy for colorectal carcinoma (CRC), a frequently diagnosed malignancy, does not exist. Some of colicins and microcins, ribosomally synthesized peptides by gramnegative bacteria, have shown significant biological activity ...
Darina Kohoutova   +7 more
doaj   +1 more source

Colicins of Escherichia coli Lead to Resistance against the Diarrhea-Causing Pathogen Enterotoxigenic E. coli in Pigs

open access: yesMicrobiology Spectrum, 2022
Gut microbes can affect host adaptation to various environment conditions. Escherichia coli is a common gut species, including pathogenic strains and nonpathogenic strains. This study was conducted to investigate the effects of different E.
Leli Wang   +17 more
doaj   +1 more source

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