A molecule containing both lipid and polysaccharide, which is important in the outer membrane of the gram-negative cell wall.

Microbiology. . 2009.

Look at other dictionaries:

  • Lipopolysaccharide — (LPS) sind relativ thermostabile (wärmeunempfindliche) Verbindungen aus fettähnlichen (Lipo ) Bestandteilen und Zucker Bestandteilen (Polysacchariden). Sie sind in der Äußeren Membran gramnegativer Bakterien enthalten. Sie wirken als Antigene und …   Deutsch Wikipedia

  • Lipopolysaccharide —   [ zaxa ], aus Lipiden und Polysacchariden bestehende charakteristische Bestandteile der äußeren Zellmembran gramnegativer Bakterien …   Universal-Lexikon

  • lipopolysaccharide — [lip΄ō pä΄lē sak′ə rīd΄, lī΄pōlē sak′ə rīd΄] n. Biochem. a large molecule that contains a polysaccharide and a lipid, found especially in cell membranes …   English World dictionary

  • Lipopolysaccharide — Structure of a lipopolysaccharide Lipopolysaccharides (LPS), also known as lipoglycans, are large molecules consisting of a lipid and a polysaccharide joined by a covalent bond; they are found in the outer membrane of Gram negative bacteria, act… …   Wikipedia

  • lipopolysaccharide — 1. A compound or complex of lipid and carbohydrate. 2. The l. (endotoxin) released from the cell walls of Gram negative organisms that produces septic shock. * * * li·po·poly·sac·cha·ride .lip ō .päl i sak ə .rīd, .lī pō n a large molecule… …   Medical dictionary

  • Lipopolysaccharide — Le lipopolysaccharide (LPS) est un composant essentiel (il n existe pas de mutant sans LPS) de la paroi bactérienne des bactéries à Gram négatif : c est une endotoxine. La structure est la suivante : L Ag O est spécifique d une espèce à …   Wikipédia en Français

  • lipopolysaccharide — noun Date: 1950 a large molecule consisting of lipids and sugars joined by chemical bonds …   New Collegiate Dictionary

  • lipopolysaccharide — n. [Gr. lipos, fat; polys, many; sakcharon, sugar] Molecule with a lipid attached to a polysaccharide …   Dictionary of invertebrate zoology

  • lipopolysaccharide — The major constituents of the cell walls of Gram negative bacteria. Highly immunogenic and stimulates the production of endogenous pyrogen interleukin 1 and tumour necrosis factor (TNF) …   Dictionary of molecular biology

  • lipopolysaccharide — /luyp oh pol ee sak euh ruyd , rid, luy poh /, n. Biochem. any of a class of polysaccharides to which lipids are attached. [1950 55; LIPO 1 + POLYSACCHARIDE] * * * …   Universalium

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