endotoxin

endotoxin
Heat-stable polysaccharide-like toxin bound to a bacterial cell. The term is used more specifically to refer to lipopolysaccharide (LPS) of the outer membrane of Gram negative bacteria. There are three parts to the molecule, the Lipid A (six fatty acid chains linked to two glucosamine residues), the core oligosaccharide (branched chain of ten sugars), and a variable length polysaccharide side chain (up to 40 sugar units in smooth forms) that can be removed without affecting the toxicity (rough LPS). Some endotoxin is probably released into the medium and endotoxin is responsible for many of the virulent effects of Gram negative bacteria.

Dictionary of molecular biology. 2004.

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  • endotoxin — endotoxin. См. эндотоксин. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • endotoxin — [en΄dō täks′in] n. [ ENDO + TOXIN] the polysaccharide that is combined with a lipid and released from the cell walls of Gram negative bacteria, producing toxic effects causing fever, shock, etc. in many animals …   English World dictionary

  • Endotoxin — Endotoxins (not to be confused with enterotoxin) are potentially toxic, natural compounds found inside pathogens such as bacteria. Classically, an endotoxin is a toxin which, unlike an exotoxin , is not secreted in soluble form by live bacteria,… …   Wikipedia

  • Endotoxin — endotoksinas statusas T sritis ekologija ir aplinkotyra apibrėžtis Toksinas, kuris į aplinką patenka tik iš suirusių bakterijų. atitikmenys: angl. endotoxin vok. Endotoxin, n rus. эндотоксин, m …   Ekologijos terminų aiškinamasis žodynas

  • endotoxin — endotoksinas statusas T sritis ekologija ir aplinkotyra apibrėžtis Toksinas, kuris į aplinką patenka tik iš suirusių bakterijų. atitikmenys: angl. endotoxin vok. Endotoxin, n rus. эндотоксин, m …   Ekologijos terminų aiškinamasis žodynas

  • Endotoxin — Endotoxine sind eine Klasse biochemischer Stoffe. Sie sind Zerfallsprodukte von Bakterien, die im Menschen zahlreiche physiologische Reaktionen auslösen können. Inhaltsverzeichnis 1 Definition 2 Wortherkunft 3 Wirkungen 4 Nac …   Deutsch Wikipedia

  • endotoxin — endotoxic, adj. /en doh tok sin/, n. Biochem. the toxic protoplasm liberated when a microorganism dies and disintegrates, as in Eberthella typhi, the causative agent of typhoid fever. Cf. exotoxin. [1900 05; ENDO + TOXIN] * * * ▪ bacterial toxin… …   Universalium

  • endotoxin — endotoksinas statusas T sritis chemija apibrėžtis Toksinas, kuris į aplinką patenka tik iš žuvusių ir suirusių bakterijų. atitikmenys: angl. endotoxin rus. эндотоксин …   Chemijos terminų aiškinamasis žodynas

  • endotoxin — noun Etymology: International Scientific Vocabulary Date: 1904 a toxic heat stable lipopolysaccharide substance present in the outer membrane of gram negative bacteria that is released from the cell upon lysis • endotoxic adjective …   New Collegiate Dictionary

  • endotoxin — n. [Gr. endon, within; toxikon, poison] A substance produced by microorganisms which is confined within the microbial cell; see exotoxin …   Dictionary of invertebrate zoology

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