peptidoglycan(redirected from Peptidoglycans)
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a glycan (polysaccharide) attached to short cross-linked peptides; found in bacterial cell walls.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A compound containing amino acids (or peptides) linked to sugars, with the latter preponderant. Compare: glycopeptide.
Synonym(s): mucopeptide (2)
Farlex Partner Medical Dictionary © Farlex 2012
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.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
A compound containing amino acids (or peptides) linked to sugars, with the latter preponderant.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
peptidoglycana 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.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005