Results 21 to 30 of about 111,225 (303)

Specificity determinants for lysine incorporation in staphylococcus aureus peptidoglycan as revealed by the structure of a MurE enzyme ternary complex [PDF]

open access: yes, 2013
Background: MurE controls stereo chemical incorporation of Lysine or diaminopimelate into peptidoglycan stem peptides Results: The structure of S.aureus MurE reveals an unexpected lack of specificity for Lysine within the active site.
Roper, David I   +14 more
core   +1 more source

Peptidoglycan-Directed Chemical Ligation for Selective Inhibition on Gram-Positive Bacteria

open access: yes, 2022
Microbicides with distinct antibacterial mechanisms show potential to combat multi-drug resistance bacteria. We herein report peptidoglycan-directed chemical ligation (PGCL) between alkyne-bearing vancomycin and an azide-tagged cationic polymer.
Xinhui Su (1341387)   +9 more
core   +1 more source

A SpoIID Homolog Cleaves Glycan Strands at the Chlamydial Division Septum

open access: yesmBio, 2019
Chlamydiales species are obligate intracellular bacteria lacking a classical peptidoglycan sacculus but relying on peptidoglycan synthesis for cytokinesis.
Nicolas Jacquier   +5 more
doaj   +1 more source

Amidation of glutamate residues in mycobacterial peptidoglycan is essential for cell wall cross-linking

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
IntroductionMycobacteria assemble a complex cell wall with cross-linked peptidoglycan (PG) which plays an essential role in maintenance of cell wall integrity and tolerance to osmotic pressure.
Moagi T. Shaku   +6 more
doaj   +1 more source

Atomic Force Microscopy of Side Wall and Septa Peptidoglycan From Bacillus subtilis Reveals an Architectural Remodeling During Growth

open access: yesFrontiers in Microbiology, 2018
Peptidoglycan is the fundamental structural constituent of the bacterial cell wall. Despite many years of research, the architecture of peptidoglycan is still largely elusive.
Kang Li   +12 more
doaj   +1 more source

Peptidoglycan derived from MLGA up-regulates the expression of chicken -defensin 9 without triggering an inflammatory response

open access: yesInnate Immunity, 2020
Defensins are critical components of the innate immune system and play an important role in the integration of innate and adaptive immune responses.
Juan Huang   +6 more
doaj   +1 more source

Structural basis for peptidoglycan binding by peptidoglycan recognition proteins [PDF]

open access: yesProceedings of the National Academy of Sciences, 2004
Peptidoglycan (PGN) recognition proteins (PGRPs) are pattern-recognition receptors of the innate immune system that bind and, in some cases, hydrolyze bacterial PGNs. We determined the crystal structure, at 2.30-Å resolution, of the C-terminal PGN-binding domain of human PGRP-Iα in complex with a muramyl tripeptide representing the core of
Rongjin, Guan   +5 more
openaire   +2 more sources

Digestion of Peptidoglycan and Analysis of Soluble Fragments

open access: yesBio-Protocol, 2017
Peptidoglycan (murein) is a vital component of the cell wall of nearly all bacteria, composed of sugars linked by short peptides. This protocol describes the purification of macromolecular peptidoglycan from cultured bacteria and the analysis of enzyme ...
Ryan Schaub, Joseph Dillard
doaj   +1 more source

Spore Peptidoglycan

open access: yesMicrobiology Spectrum, 2015
ABSTRACT Bacterial endospores possess multiple integument layers, one of which is the cortex peptidoglycan wall. The cortex is essential for the maintenance of spore core dehydration and dormancy and contains structural modifications that differentiate it from vegetative cell peptidoglycan and determine its fate during spore ...
David L, Popham, Casey B, Bernhards
openaire   +2 more sources

Characterisation of ATP-Dependent Mur Ligases Involved in the Biogenesis of Cell Wall Peptidoglycan in Mycobacterium tuberculosis [PDF]

open access: yes, 2013
ATP-dependent Mur ligases (Mur synthetases) play essential roles in the biosynthesis of cell wall peptidoglycan (PG) as they catalyze the ligation of key amino acid residues to the stem peptide at the expense of ATP hydrolysis, thus representing ...
Nicholas H Keep   +29 more
core   +1 more source

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