Results 61 to 70 of about 11,450 (169)

Emergence of Staphylococcus aureus Resistance to Antimicrobial Peptides Nisin, NZ2114 and Bacitracin Involves Multiple Phenotypic Changes

open access: yesAnimal Research and One Health, Volume 4, Issue 1, Page 82-93, February 2026.
The AMP‐induced mutant Staphylococcus aureus strain nzR showed increased resistance, five gene mutations, and decreased surface anion levels. AMPs affect the NDH‐2 protein encoded by ndh gene inhibiting the growth of S. aureus. The deletion of the ndh gene promotes the development of AMPs resistance.
Lingyu Xiao   +12 more
wiley   +1 more source

Reassessing the substrate specificities of the major Staphylococcus aureus peptidoglycan hydrolases lysostaphin and LytM

open access: yeseLife
Orchestrated action of peptidoglycan (PG) synthetases and hydrolases is vital for bacterial growth and viability. Although the function of several PG synthetases and hydrolases is well understood, the function, regulation, and mechanism of action of PG ...
Lina Antenucci   +6 more
doaj   +1 more source

Microbial‐Immune Interplay in CNS Autoimmune Diseases: Lessons from Animal Models and Clinical Studies

open access: yesEuropean Journal of Immunology, Volume 56, Issue 2, February 2026.
Mechanism of action of the intestinal microbiota on CNS autoimmune diseases. Environmental factors shape gut microbiota composition; dysbiosis alters microbial metabolites and antigenic signals. These modulate innate and adaptive immunity, affect barrier integrity, and influence CNS‐resident cells such as microglia and astrocytes, contributing to ...
Matteo Ceccon, Francesca Ronchi
wiley   +1 more source

A moonlighting role for LysM peptidoglycan binding domains underpins Enterococcus faecalis daughter cell separation

open access: yesCommunications Biology, 2023
Control of cell size and morphology is of paramount importance for bacterial fitness. In the opportunistic pathogen Enterococcus faecalis, the formation of diplococci and short cell chains facilitates innate immune evasion and dissemination in the host ...
Bartłomiej Salamaga   +5 more
doaj   +1 more source

The Factors Involved in Plant–Insect–Microbe Interactions Expanded: Genome Analysis and Description of Frigoribacterium adelgis sp. nov.

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Aerobic Actinobacteria belonging to the genus Frigoribacterium were isolated from adelgid Adelges (Aphrastasia) pectinatae collected from a Korean fir tree. Genomic analysis showed that these bacteria encode a range of factors that may be involved in the interactions between Frigoribacterium strains, adelgids and/or Korean fir trees.
Gustė Tamošiūnaitė   +4 more
wiley   +1 more source

Identification of Mur, an Atypical Peptidoglycan Hydrolase Derived fromLeuconostoc citreum [PDF]

open access: yesApplied and Environmental Microbiology, 2001
ABSTRACTA gene encoding a protein homologous to known bacterialN-acetyl-muramidases has been cloned fromLeuconostoc citreumby a PCR-based approach. The encoded protein, Mur, consists of 209 amino acid residues with a calculated molecular mass of 23,821 Da including a 31-amino-acid putative signal peptide.
Cibik, R.   +3 more
openaire   +4 more sources

An Integrated Engineering Approach to Creating Health‐Modulating Postbiotics

open access: yesMolecular Nutrition &Food Research, Volume 70, Issue 1, January 2026.
Postbiotics have emerged as a promising alternative to live probiotics, offering comparable health benefits while overcoming challenges related to safety, stability, and shelf life. The review addresses current challenges in standardizing postbiotic definitions and production processes, and by outlining future research directions necessary to unlock ...
Michael Leonidas Chikindas   +10 more
wiley   +1 more source

Binding mechanism of the peptidoglycan hydrolase Acm2: low affinity, broad specificity. [PDF]

open access: yesBiophys J, 2013
Peptidoglycan hydrolases are bacterial secreted enzymes that cleave covalent bonds in the cell-wall peptidoglycan, thereby fulfilling major physiological functions during cell growth and division. Although the molecular structure and functional roles of these enzymes have been widely studied, the molecular details underlying their interaction with ...
Beaussart A   +6 more
europepmc   +4 more sources

Comparison of Predatory Phenotypes and Genotypes Between Bdellovibrio sp. BIS2 and Bacteriovorax sp. HI3 Isolated From the Same Freshwater Environment

open access: yesEnvironmental Microbiology, Volume 28, Issue 1, January 2026.
Bdellovibrio and like organisms (BALOs) have gained attraction owing to their ecological and practical significance. This study comparatively investigated two BALO strains from the same freshwater pond, Bdellovibrio sp. BIS2 and Bacteriovorax sp. HI3, and revealed significant variation in their predatory behaviours and associated genetic profiles ...
Tomomi Sugiyama   +6 more
wiley   +1 more source

AmiD Is a Novel Peptidoglycan Amidase in Wolbachia Endosymbionts of Drosophila melanogaster

open access: yesFrontiers in Cellular and Infection Microbiology, 2017
Wolbachia endobacteria are obligate intracellular bacteria with a highly reduced genome infecting many arthropod and filarial species, in which they manipulate arthropod reproduction to increase their transmission and are essential for nematode ...
Miriam Wilmes   +10 more
doaj   +1 more source

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