Results 91 to 100 of about 39,875 (257)

Structure, Organization, and Expression of the lct Gene for Lacticin 481, a Novel Lantibiotic Produced by Lactococcus lactis [PDF]

open access: yes, 1993
The structural gene for the lactococcal lantibiotic lacticin 481 (lct) has been identified and cloned using a degenerated 20-mer DNA oligonucleotide based on the amino-terminal 7 amino acid residues of the purified protein.
Desmazeaud, Michel J.,   +4 more
core   +1 more source

Identification of the catalytic motif of the microbial ribosome inactivating cytotoxin colicin E3 [PDF]

open access: yes, 2004
Colicin E3 is a cytotoxic ribonuclease that specifically cleaves 16S rRNA at the ribosomal A-site to abolish protein synthesis in sensitive Escherichia coli cells.
Bohm   +30 more
core   +2 more sources

Aptamer‐mediated outer membrane destabilization overcomes low permeability resistance in Pseudomonas aeruginosa

open access: yesThe FEBS Journal, EarlyView.
DNA aptamers, Apt 60 and Apt 173, target the BamA protein to compromise outer membrane integrity in Pseudomonas aeruginosa, making it susceptible to Azithromycin, an antibiotic that is otherwise poorly effective due to the low‐permeability membrane.
Rupany Selvam   +4 more
wiley   +1 more source

Cell entry mechanism of enzymatic bacterial colicins: Porin recruitment and the thermodynamics of receptor binding [PDF]

open access: yes, 2005
Binding of enzymatic E colicins to the vitamin B-12 receptor, BtuB, is the first stage in a cascade of events that culminate in the translocation of the cytotoxic nuclease into the Escherichia coli cytoplasm and release of its tightly bound immunity ...
Housden, Nicholas G.   +4 more
core   +3 more sources

Comprehensive and Comparative Transcriptional Profiling of the Cell Wall Stress Response in Bacillus subtilis

open access: yesMolecular Microbiology, EarlyView.
Transcriptional profiling of the primary cell envelope stress response (CESR) of Bacillus subtilis exposed to a range of cell wall‐targeting antimicrobials, combining RNAseq and high‐resolution tiling arrays. We revealed the complexity of the CESR, the contribution of extracytoplasmic function sigma factors (ECFs) and two‐component signal transduction ...
Qian Zhang   +12 more
wiley   +1 more source

Metagenomic Evaluation of Oral Microbiota in Patients Affected by Oral Lichen Planus: A Pilot Study

open access: yesOral Diseases, EarlyView.
ABSTRACT Objective To characterize the oral bacterial and fungal microbiota of symptomatic oral lichen planus patients undergoing topical corticosteroid therapy and to explore microbial patterns potentially associated with subsequent oral candidiasis. Methods Twelve patients with clinically and histologically confirmed OLP were enrolled.
A. Dormiente   +5 more
wiley   +1 more source

In silico identification of bacteriocin gene clusters in the gastrointestinal tract, based on the Human Microbiome Project’s reference genome database [PDF]

open access: yes, 2015
peer-reviewedBackground The human gut microbiota comprises approximately 100 trillion microbial cells which significantly impact many aspects of human physiology - including metabolism, nutrient absorption and immune function ...
Cotter, Paul D.   +5 more
core   +1 more source

Oral wound healing in the elderly: Mechanisms, challenges, and innovations

open access: yesPeriodontology 2000, EarlyView.
Abstract Objective This narrative synthesizes current knowledge on the biological mechanisms, clinical challenges, and regenerative innovations for optimizing intraoral wound healing in the elderly. Methods Narrative review of preclinical and clinical studies addressing age‐related changes in the four canonical wound‐healing phases (hemostasis ...
Ann M. Decker   +7 more
wiley   +1 more source

Research Progress on Bacteriocins Produced by Lactic Acid Bacteria and Their Inhibitory Effect on the Biofilm of Staphylococcus aureus

open access: yesShipin gongye ke-ji
Staphylococcus aureus (S. aureus) is a Gram-positive opportunistic pathogen that can form biofilm on the surface of food. Its biofilm formation poses a serious threat to food processing and food safety.
Xiaoge XUE   +7 more
doaj   +1 more source

Lactobacillus curvatus UFV-NPAC1 and other lactic acid bacteria isolated from calabresa, a fermented meat product, present high bacteriocinogenic activity against Listeria monocytogenes

open access: yesBMC Microbiology, 2019
Background Bacteriocins produced by lactic acid bacteria (LAB) can be considered as viable alternatives for food safety and quality, once these peptides present antimicrobial activity against foodborne pathogens and spoilage bacteria.
Nathália Parma Augusto Castilho   +4 more
doaj   +1 more source

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