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gly·cos·ami·no·gly·can .glī-kō-sə-.mē-nō-'glī-.kan, -kō-.sam-ə-nō- n any of various polysaccharides derived from an amino hexose that are constituents of mucoproteins, glycoproteins, and blood-group substances called also mucopolysaccharide

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gly·cos·ami·no·gly·can (gli″kōs-ə-me″no-gliґkan) any of several high-molecular-weight linear heteropolysaccharides having disaccharide repeating units containing an N-acetylhexosamine and a hexose or hexuronic acid; either or both residues may be sulfated. This class of compounds includes the chondroitin sulfates, dermatan sulfates, heparan sulfate and heparin, keratan sulfates, and hyaluron. All except heparin occur in proteoglycans. One or more glycosaminoglycans are accumulated abnormally in the various mucopolysaccharidoses. Abbreviated GAG. Formerly called mucopolysaccharide.

Medical dictionary. 2011.

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Look at other dictionaries:

  • Glycosaminoglycan — For other uses of GAGs see Gag (disambiguation) Chondroitin sulfate …   Wikipedia

  • Glycosaminoglycan galactosyltransferase — In enzymology, a glycosaminoglycan galactosyltransferase (EC number| is an enzyme that catalyzes the chemical reaction:UDP galactose + glycosaminoglycan ightleftharpoons UDP + D galactosylglycosaminoglycanThus, the two substrates of this …   Wikipedia

  • glycosaminoglycan attachment site — In proteoglycans a number of glycosaminoglycan chains are attached to a core protein through a xyloside residue which is linked to a serine residue at the consensus pattern S G X G …   Dictionary of molecular biology

  • glycosaminoglycan — noun Etymology: glyc + hexosamine (amine derived from a hexose) + o + glycan Date: 1962 any of various polysaccharides derived from an amino hexose that are constituents of mucoproteins, glycoproteins, and blood group substances called also… …   New Collegiate Dictionary

  • Glycosaminoglycan — Glykosaminoglykane (GAG) oder Mucopolysaccharide sind linear aus sich wiederholenden Disacchariden aufgebaute, saure Polysaccharide.[1] Die einzelnen Disaccharid Einheiten bestehen dabei aus Estern einer Uronsäure (meist Glucuronsäure, seltener… …   Deutsch Wikipedia

  • glycosaminoglycan — /gluy kohs euh mee noh gluy kan/, n. any of a class of polysaccharides derived from hexosamine that form mucins when complexed with proteins: formerly called mucopolysaccharide. [1975 80; GLYCO + (HEXO)SAMINE + O + glycan polysaccharide] * * * …   Universalium

  • glycosaminoglycan — noun any polysaccharide that is a polymer of amino sugars; they are the carbohydrate units of proteoglycans …   Wiktionary

  • glycosaminoglycan — n. any one of several polysaccharides that that are derived from hexosamine and form mucins when combined with proteins …   English contemporary dictionary

  • glycosaminoglycan — gly·cos·ami·no·glycan …   English syllables

  • glycosaminoglycan — gly•cos•a•mi•no•gly•can [[t]ˌglaɪ koʊs əˌmi noʊˈglaɪ kæn[/t]] n. biochem. any of a class of polysaccharides that form mucins when complexed with proteins Formerly, mucopolysaccharide • Etymology: 1975–80; glyco +(hexo)samin(e) a hexose derivative …   From formal English to slang

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