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Keratan sulfates from bovine tracheal cartilage. Structural studies of intact polymer chains using 1H and 13C NMR spectroscopy.

Huckerby, Thomas N. and Lauder, Robert M. (2000) Keratan sulfates from bovine tracheal cartilage. Structural studies of intact polymer chains using 1H and 13C NMR spectroscopy. European Journal of Biochemistry, 267 (11). pp. 3360-3369. ISSN 1432-1033

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Intact keratan sulfate chains derived from bovine tracheal cartilage have been examined using both one-dimensional methods and the two-dimensional experiments COSY-45 and TOCSY for homonuclear shift correlations and a modified COLOC (correlated spectroscopy for long-range couplings) approach for 13C–1H shift correlations. Partial 1H and 13C NMR signal assignments for residues within the intact polymer chain are reported; data derived from the repeat region signals and from chain cap residues are assigned by comparison with published data derived from oligosaccharides obtained through cleavage of keratan sulfate polymer chains using keratanase and keratanase II and are discussed in detail. The one-dimensional spectra for both 1H and 13C nuclei contain highly crowded signal clusters for which data analysis is not directly possible. COSY-45 analysis allow the correlation and assignment of many proton resonances located within the 3.4–4.8 p.p.m. chemical shift region while from the C/H correlation spectrum data are assignable for some signals within the complex set of carbon resonances which fall in the region between 68 and 86 p.p.m., This work using material from tracheal cartilage has permitted the first detailed combined 1H and 13C NMR examination of the primary keratan sulfate polymer structure; this sequence forms the basis for the more complex members of the keratan sulfate family present in other tissues such as articular cartilage and cornea where further residues such as (α1–3)-linked fucose and (α2–6)-linked N-acetylneuraminic acid are also present. This nondestructive method of analysis complements the currently available degradative methods for structure determination which may then subsequently be utilized.

Item Type: Journal Article
Journal or Publication Title: European Journal of Biochemistry
Subjects: ?? qh301 ??
Departments: Faculty of Science and Technology > Lancaster Environment Centre
Faculty of Health and Medicine > Biomedical & Life Sciences
ID Code: 9435
Deposited By: Dr Bob Lauder
Deposited On: 10 Jun 2008 10:04
Refereed?: Yes
Published?: Published
Last Modified: 15 May 2018 03:08
Identification Number:

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