peptidoglycan

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Related to Peptidoglycans: murein, Proteoglycans

peptidoglycan

 [pep″tĭ-do-gli´kan]
a glycan (polysaccharide) attached to short cross-linked peptides; found in bacterial cell walls.

pep·ti·do·gly·can

(pep'ti-dō-glī'kan),
A compound containing amino acids (or peptides) linked to sugars, with the latter preponderant. Compare: glycopeptide.
Synonym(s): mucopeptide (2)

peptidoglycan

/pep·ti·do·gly·can/ (pep″tĭ-do-gli´kan) a glycan (polysaccharide) attached to short cross-linked peptides; found in bacterial cell walls.

peptidoglycan

(pĕp′tĭ-dō-glī′kən, -kăn′)
n.
A polymer found in the cell walls of prokaryotes that consists of polysaccharide and peptide chains in a strong molecular network. Also called mucopeptide, murein.

pep·ti·do·gly·can

(pep'ti-dō-glī'kan)
A compound containing amino acids (or peptides) linked to sugars, with the latter preponderant.
Compare: glycopeptide

peptidoglycan

a main component of bacterial CELL WALLS. Peptidoglycan consists of molecules of SUGARS: N-acetylglucosamine and N-acetylmuramic acid, linked together in rows (forming the glycan portion of peptidoglycan), and adjacent rows are cross-linked by PEPTIDES (forming the peptide portion of peptidoglycan). Peptidoglycan forms a lattice that surrounds and protects the whole cell. Generally, Gram-positive BACTERIA (see GRAM'S STAIN have many layers of peptidoglycan, forming a thick and rigid layer, while gram-negative bacteria have a thin layer of peptidoglycan.

peptidoglycan

a glycan (polysaccharide) attached to short cross-linked peptides; found in bacterial cell walls and is responsible for their structural rigidity.
References in periodicals archive ?
Based on the origin of plastids from an endosymbiotic cyanobacterium, PpPBP must localize to the intermembrane space where peptidoglycan is present, because PBPs function in the periplasm where new peptidoglycan monomer units join pre-existing peptidoglycans in bacteria.
Excessive consumption of alcohol alters the characteristics and composition of the microbiome in the GI tract and increases translocation of bacteria and bacterial products, such as LPS and peptidoglycans, from the gut via the portal system to the liver.
Keywords: Lysinibacillus pakistanensis; Cell wall peptidoglycans type A4a; DNA-DNA hybridizationIntroduction
For decades researchers had searched for peptidoglycan--a mesh-like polymer that forms the cell wall in diverse bacteria--in the bacterial pathogen Chlamydiae peptidoglycan in hopes of studying its structure and synthesis as a path to drug development against a class of bacteria responsible for one in 10 cases of pneumonia in children, as well as more than 21,000,000 cases of the blindness-causing disease trachoma.
PRRs have been reported in bivalves, including a peptidoglycan recognition protein in scallops (Suet al.
Presence of bacterial DNA and bacterial peptidoglycans in joints of patients with rheumatoid arthritis and other arthritides.
HA), peptidoglycans, and glycoproteins important for numerous physiological functions of organisms [9-12].
Peptidoglycans, arabinogalactans, and mycolates significantly contribute to the wall's structural integrity, but do not contribute major immunogenicity to the bacteria.
Glycomics is the analysis of the structure and functions of glycans or oligosaccharides (chains of sugars) attached to biomolecules and includes the analysis of glycoproteins, proteoglycans, glycolipids, peptidoglycans, and lipopolysacchrarides.
Extracted and purified from linseed obtained from organic farming, and known for its emolliency and anti-inflammatory properties, the acid polysaccharides (uronic acids, [beta]-glucan) and peptidoglycans of the organic linseed extract can prevent, or least limit, irritation by acting on the synthesis of key molecules in the inflammatory cascade.
The proPO cascade can respond to lipopolysaccharides, bacterial peptidoglycans, and fungal [beta] 1,3- glucans (Ashida, 1990), which trigger the defensive melanization reaction.
TLR-2 recognizes, among other things, peptidoglycans primarily produced by gram-positive bacteria, lipoprotein and zymosan, which is a component of yeast.