Taxonomic group: fungi / Basidiomycota
(Phylum: Basidiomycota)
Host organism: (plant)
Organ / tissue: fruiting bodyAssociated disease: heart-rot disease
The structure was elucidated in this paperPublication DOI: 10.1016/S0378-1097(03)00853-XJournal NLM ID: 7705721Publisher: Blackwell Publishing
Correspondence: iacomini
bio.ufpr.br
Institutions: Departamento de Bioquímica, Universidade Federal do Paraná, C.P. 19046, 81531-990 Curitiba-PR, Brazil, Departamento de Bioquímica, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá-PR, Brazi, Istituto di Ricerche Chimiche e Biochimiche ‘G. Ronzoni’, Via Colombo 81, 20133 Milan, Italy
The two main polysaccharides from the basidiomycetous fungus Laetiporus sulphureus were isolated, purified and characterized. The structural assignments were carried out using C-13, H-1, and 1H,(13) HSQC nuclear magnetic resonance spectroscopy, methylation analysis, and Smith degradation. One was a linear β-glucan having a (1→3)-linked main chain, namely laminaran. The other was a fucomannogalactan, which consisted of a main chain of (1→6)-linked α-D-galactopyranosyl residues, a part of them being substituted at O-2 by 3-O-D-mannopyranbsyl-L-fucopyranosyl, α-D-mannopyranosyl and in a minor proportion, α-L-fucopyranosyl groups. This heteropolysaccharide is related to those of other Basidiomycetes heterogalactans, although it differs distinctly in its side-chain structures. Whereas part of the single-unit L-fucopyranosyl and/or 3-O-α-mannopyranosyl-L-fucopyranosyl residues are present as side chains of the other heterogalactans, additional a-D-mannopyranosyl units are present in our fucomannogalactan of L. sulphureus.
beta-glucan, heterogalactan, fucomannogalactan, Laetiporus sulphureus
Structure type: fragment of a bigger structure
Location inside paper: p.50, fig.3B
Trivial name: heterogalactan (fucomannogalactan)
Compound class: mannofucogalactan
Contained glycoepitopes: IEDB_130701,IEDB_134624,IEDB_136906,IEDB_137472,IEDB_141794,IEDB_144983,IEDB_151528,IEDB_152206,IEDB_190606,IEDB_983930,SB_163,SB_44,SB_67,SB_7,SB_72
Methods: 13C NMR, 1H NMR, methylation, periodate oxidation, GC-MS, sugar analysis, acid hydrolysis, Smith degradation, acetylation, reduction, HPSEC-MALLS/RI
Comments, role: 10% of backbone fucomannogalactan in the full structure correspond to this fragment. Infection in deciduous trees and conifers.
Related record ID(s): 41344, 41345, 41347, 48810
NCBI Taxonomy refs (TaxIDs): 5630Reference(s) to other database(s): GTC:G59947NM
Show glycosyltransferases
1H NMR data: present in publication
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13C NMR data: present in publication
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There is only one chemically distinct structure:
Found 
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