13C NMR spectroscopy of keratan sulphates: Assignments for the reduced form of a repeat unit tetrasaccharide derived from keratan sulphate by keratanase digestion and partial assignments for two fucosylated pentasaccharides

Autor:	Gui-Hua Tai, Gavin Brown, J M Dickenson, Thomas N. Huckerby, Robert M. Lauder, Ian A. Nieduszynski
Rok vydání:	1993
Předmět:	chemistry.chemical_classification chemistry Stereochemistry Tetrasaccharide General Materials Science Pulse sequence General Chemistry Nuclear magnetic resonance spectroscopy Oligosaccharide Carbon-13 NMR Digestion Keratan sulphate Repeat unit
Zdroj:	Magnetic Resonance in Chemistry. 31:394-398
ISSN:	1097-458X 0749-1581
DOI:	10.1002/mrc.1260310416
Popis:	A full assignment of the 60°C 13C NMR spectrum for the reduced form of a repeat unit β-linked tetrasaccharide derived by keratanase digestion from keratan sulphate, GlcNAc(6SO4)β1–3Gal(6SO4)β1–4GlcNAc(6SO4)β1–3-Gal-ol, was achieved via two-dimensional C/H correlation and 1H COSY experiments, and a complete first-order analysis of the 600 MHz proton spectrum. Partial 13C assignments for two fucosylated keratan sulphate pentasc-charides derived using hydrazinolysis and nitrous acid treatment are discussed.
Databáze:	OpenAIRE
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