Results 21 to 30 of about 11,450 (169)

Peptidoglycan Hydrolase Fusions Maintain Their Parental Specificities [PDF]

open access: yesApplied and Environmental Microbiology, 2006
ABSTRACT The increased incidence of bacterial antibiotic resistance has led to a renewed search for novel antimicrobials. Avoiding the use of broad-range antimicrobials through the use of specific peptidoglycan hydrolases (endolysins) might reduce the incidence of antibiotic-resistant pathogens worldwide.
David M, Donovan   +5 more
openaire   +2 more sources

Genetic Evidence for Distinct Functions of Peptidoglycan Endopeptidases in Escherichia coli

open access: yesFrontiers in Microbiology, 2020
Peptidoglycan (PG) is an essential component of the bacterial exoskeleton that plays a pivotal role in the maintenance of cell shape and resistance to cell lysis under high turgor pressures.
Si Hyoung Park   +4 more
doaj   +1 more source

A new peptidoglycan hydrolase in Streptococcus pneumoniae [PDF]

open access: yesFEMS Microbiology Letters, 1986
The use of a mutant of Streptococcus pneumoniae deleted in the lytA gene coding for the N-acetyl-muramyl-l-alanine amidase, and therefore devoid of any amidase, has allowed the identification of a new murein hydrolase activity in this bacterium. This enzyme (or enzymes) acted as an autolysin when the cultures were grown at 30°C.
J.M. Sańchez-Puelles   +5 more
openaire   +2 more sources

Enterococcus faecium secreted antigen A generates muropeptides to enhance host immunity and limit bacterial pathogenesis

open access: yeseLife, 2019
We discovered that Enterococcus faecium (E. faecium), a ubiquitous commensal bacterium, and its secreted peptidoglycan hydrolase (SagA) were sufficient to enhance intestinal barrier function and pathogen tolerance, but the precise biochemical mechanism ...
Byungchul Kim   +9 more
doaj   +1 more source

Divergent Effects of Peptidoglycan Carboxypeptidase DacA on Intrinsic β-Lactam and Vancomycin Resistance

open access: yesMicrobiology Spectrum, 2022
Vancomycin and β-lactams are clinically important antibiotics that inhibit the formation of peptidoglycan cross-links, but their binding targets are different.
Si Hyoung Park   +5 more
doaj   +1 more source

A second endolysin gene is fully embedded in-frame with the lysA gene of mycobacteriophage Ms6. [PDF]

open access: yesPLoS ONE, 2011
Mycobacteriophages are dsDNA viruses that infect mycobacterial hosts. The mycobacteriophage Ms6 accomplishes lysis by producing two cell wall hydrolytic enzymes, Lysin A (LysA) that possesses a central peptidoglycan recognition protein (PGRP) super ...
Maria João Catalão   +4 more
doaj   +1 more source

The Molecular Basis for Escherichia coli O157:H7 Phage FAHEc1 Endolysin Function and Protein Engineering to Increase Thermal Stability

open access: yesViruses, 2021
Bacteriophage-encoded endolysins have been identified as antibacterial candidates. However, the development of endolysins as mainstream antibacterial agents first requires a comprehensive biochemical understanding. This study defines the atomic structure
Michael J. Love   +5 more
doaj   +1 more source

Bacterial growth does require peptidoglycan hydrolases [PDF]

open access: yesMolecular Microbiology, 2012
SummaryMost bacteria surround their cytoplasmic membrane with a net‐like, elastic heteropolymer, the peptidoglycan sacculus, to protect themselves from bursting due to the turgor and to maintain cell shape. It has been assumed that growing bacteria require peptidoglycan hydrolases to open meshes in the peptidoglycan net allowing the insertion of the ...
openaire   +2 more sources

Bacteriophage virion-associated peptidoglycan hydrolases: potential new enzybiotics [PDF]

open access: yesCritical Reviews in Microbiology, 2012
Virion-associated peptidoglycan hydrolases (VAPGH) are phage-encoded lytic enzymes that locally degrade the peptidoglycan (PG) of the bacterial cell wall during infection. In contrast to endolysins, PGHs that mediate lysis of the host bacteria at the end of the lytic cycle to release of phage progeny, the action of VAPGHs generates a small hole through
Rodríguez, Lorena   +4 more
openaire   +3 more sources

In vitro characterization of the antivirulence target of Gram-positive pathogens, peptidoglycan O-acetyltransferase A (OatA). [PDF]

open access: yesPLoS Pathogens, 2017
The O-acetylation of the essential cell wall polymer peptidoglycan occurs in most Gram-positive bacterial pathogens, including species of Staphylococcus, Streptococcus and Enterococcus. This modification to peptidoglycan protects these pathogens from the
David Sychantha   +9 more
doaj   +1 more source

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