Taxonomic group: fungi / Ascomycota
(Phylum: Ascomycota)
The structure was elucidated in this paperNCBI PubMed ID: 9468630Publication DOI: 10.1016/S0008-6215(97)00239-5Journal NLM ID: 0043535Publisher: Elsevier
Institutions: Grupo de carbohidratos, Instituto de Química, Orgánica, CSIC, Madrid, Spain
The structure of fungal polysaccharides isolated from the cell wall of Trichoderma reesei, T. koningii, and Hypocrea psychrophila, have been investigated by means of chemical analyses and 1D and 2D NMR spectroscopy. The polysaccharides have an irregular structure, idealized as follows: see formula in text. The proportions of the different side chains vary from a species to another, being n above some three times larger in H. psychrophila than in T. reesei or T., koningii.
NMR spectroscopy, polysaccharides, fungi, T. reesei, T. koningii, H. psychrophila
Structure type: fragment of a bigger structure ; n=10 (Trichoderma reesei); n=4-5 (Hypocrea psychrophila)
Location inside paper: abstract, p.288 (H)
Trivial name: core mannan polysaccharide
Compound class: cell wall polysaccharide
Contained glycoepitopes: IEDB_130701,IEDB_140116,IEDB_141793,IEDB_141828,IEDB_144983,IEDB_152206,IEDB_153220,IEDB_153762,IEDB_153763,IEDB_76933,IEDB_983930,SB_198,SB_44,SB_67,SB_72
Methods: 13C NMR, 1H NMR, methylation, NMR-2D, partial acid hydrolysis, sugar analysis, acid hydrolysis, GLC
Comments, role: The polysaccharides have an irregular structure. Part of structure of PS (see ID 40002,40004,40005)
Related record ID(s): 40002, 40004, 40005
NCBI Taxonomy refs (TaxIDs): 212377,
51453,
97093Reference(s) to other database(s): GTC:G55317BB
Show glycosyltransferases
NMR conditions: in D2O at 313 K
[as TSV]
13C NMR data:
Linkage Residue C1 C2 C3 C4 C5 C6
aDManp 100.2 71.0 71.6-71.7 67.5 71.6-71.7 66.5
1H NMR data:
Linkage Residue H1 H2 H3 H4 H5 H6
aDManp 4.91 4.00 3.84-3.85 3.74 3.84-3.85 3.79-3.94
1H/13C HSQC data:
Linkage Residue C1/H1 C2/H2 C3/H3 C4/H4 C5/H5 C6/H6
aDManp 100.2/4.91 71.0/4.00 71.6-71.7/3.84-3.85 67.5/3.74 71.6-71.7/3.84-3.85 66.5/3.79-3.94
1H NMR data:
| Linkage | Residue | H1 | H2 | H3 | H4 | H5 | H6 |
|---|
| | aDManp | 4.91 | 4.00 | 3.84
3.85 | 3.74 | 3.84
3.85 | 3.79
3.94 |
|
13C NMR data:
| Linkage | Residue | C1 | C2 | C3 | C4 | C5 | C6 |
|---|
| | aDManp | 100.2 | 71.0 | 71.6
71.7 | 67.5 | 71.6
71.7 | 66.5 |
|
There is only one chemically distinct structure:
Found 
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