Taxonomic group: fungi / Basidiomycota
(Phylum: Basidiomycota)
Organ / tissue: fruiting body
The structure was elucidated in this paperNCBI PubMed ID: 18851845Publication DOI: 10.1016/j.carres.2008.09.019Journal NLM ID: 0043535Publisher: Elsevier
Correspondence: Syed S. Islam <sirajul_1999
yahoo.com>
Institutions: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, West Bengal, India
A water-soluble polysaccharide, isolated from the hot aqueous extract of an edible mushroom, Agaricus bitorquis, was found to consist of d-glucose only. On the basis of total hydrolysis, methylation analysis, and NMR studies ((1)H, (13)C, TOCSY, DQF-COSY, NOESY, ROESY, HMQC, and HMBC), the structure of the repeating unit was established as →6)-β-D-Glcp-(1→.
structure, polysaccharide, NMR spectroscopy, glucan, Agaricus bitorquis
Structure type: homopolymer ; 180000
Location inside paper: abstract, p.3121
Compound class: glucan
Contained glycoepitopes: IEDB_135614,IEDB_141806,IEDB_142488,IEDB_146664,IEDB_241101,IEDB_983931,SB_192
Methods: 13C NMR, 1H NMR, methylation, GLC-MS, IR, sugar analysis, acid hydrolysis, GLC, extraction, CD
NCBI Taxonomy refs (TaxIDs): 5343Reference(s) to other database(s): GTC:G26777BZ
Show glycosyltransferases
NMR conditions: in D2O at 300 K
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6
bDGlcp 103.4 73.5 76.0 69.9 75.3 69.2
1H NMR data:
Linkage Residue H1 H2 H3 H4 H5 H6
bDGlcp 4.50 3.31 3.49 3.47 3.61 3.84-4.20
1H/13C HSQC data:
Linkage Residue C1/H1 C2/H2 C3/H3 C4/H4 C5/H5 C6/H6
bDGlcp 103.4/4.50 73.5/3.31 76.0/3.49 69.9/3.47 75.3/3.61 69.2/3.84-4.20
1H NMR data:
| Linkage | Residue | H1 | H2 | H3 | H4 | H5 | H6 |
|---|
| | bDGlcp | 4.50 | 3.31 | 3.49 | 3.47 | 3.61 | 3.84
4.20 |
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 |
|---|
| | bDGlcp | 103.4 | 73.5 | 76.0 | 69.9 | 75.3 | 69.2 |
|
There is only one chemically distinct structure:
Found 
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