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  • Title: Chondroitin ABC lyase digestion of an ascidian dermatan sulfate. Occurrence of unusual 6-O-sulfo-2-acetamido-2-deoxy-3-O-(2-O-sulfo-alpha-L-idopyranosyluronic acid)-beta-D-galactose units.
    Author: Mourão PA, Pavão MS, Mulloy B, Wait R.
    Journal: Carbohydr Res; 1997 May 19; 300(4):315-21. PubMed ID: 9210298.
    Abstract:
    A dermatan sulfate-like glycosaminoglycan was isolated from the body of the ascidian Ascidia nigra (J. Biol. Chem. 270: 31027-31036, 1995). 1H NMR and fast atom bombardment mass spectrometry (FAB-MS) spectra of the tetra and disaccharides formed by chondroitin ABC lyase digestion support the proposed repeating disaccharide structure for this glycosaminoglycan, [-->4)-alpha-L-IdoA(2SO4)-(1-->3)-beta-D-GalNAc(6SO4)-(1-->] , which differ from mammalian dermatan sulfate in its sulfation at both 2-position of the alpha-L-iduronic acid and the 6-position of the N-acetyl-beta-D-galactosamine residue.
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