The main component of a water extract of Boletus erythropus fruiting bodies is a Mr 1000000 glucan. The use of classical structural analysis and HMQC (heteronuclear multiple quantum coherence) NMR experiments indicates a (1→3) linked β-D-glucan structure with a single glucose residue attached to O-6 of the main chain and a branching frequency of 1/3.

mushroom, β-D-glucan, Basidiomycetes, Boletus erythropus, water-soluble polysaccharides, HMQC NMR

• Compound ID: 19707
  

  b-D-Glcp-(1-6)-+ | -3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-3)-b-D-Glcp-(1-

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  Structure type: structural motif or average structure ; 1000000
  Compound class: O-polysaccharide, glucan
  Reference(s) to other database(s): GTC:G66305IS
  
   
  
  Boletus erythropus
  CSDB ID 46039 (all data & tools)