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Title

Isolation and structural determination of a unique polysaccharide containing mannofuranose from the cell wall of the fungus Acrospermum compressum

AuthorsPrieto, Alicia ; Leal, J.A. ; Giménez-Abián, M.I.; Canales, Ángeles ; Jiménez-Barbero, Jesús ; Bernabé, Manuel
Issue Date2007
PublisherSpringer
CitationGlycoconjugate Journal 24: 421- 428 (2007)
AbstractThe alkali-extractable and water-soluble fungal polysaccharide F1SS isolated from the cell wall of Acrospermum compressum has been studied by methylation analyses, reductive cleavage and 1D- and 2D-NMR spectroscopy. The polysaccharide consists of a regular disaccharide repeating unit with the structure: [→6)-β-DGa1f-(1→]n→ Mannan core 2 ↑ 1 β-D-Manf The mannan core was obtained by mild hydrolysis of the polysaccharide F1SS and its structure was deduced to be composed of a skeleton of α-(1→6)-mannopyranan, with around 1 out of 11 residues substituted at position 2 by short chains (one to six units) of 2-substituted mannopyranoses. DOSY experiments provided molecular sizes of 60 kDa and 2.5 kDa for the polysaccharide F1SS and the mannan core, respectively. This is the first report of a fungal mannofuranose-containing cell wall polysaccharide. © 2007 Springer Science+Business Media, LLC.
URIhttp://hdl.handle.net/10261/77733
DOI10.1007/s10719-007-9032-5
Identifiersdoi: 10.1007/s10719-007-9032-5
issn: 0282-0080
e-issn: 1573-4986
Appears in Collections:(CIB) Artículos
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