The capsular polysaccharide from Streptococcus pneumoniae type 12F is composed of D-glucosyl, D-galactosyl, 2-acetamido-2-deoxy-D-galactosyl, 2-acetamido-2,6-dideoxy-L-galactosyl, and 2-acetamido-2-deoxy-D-mannuronic acid residues in the proportions 2:1:1:1:1. The main structural evidence was adduced from nmr spectroscopy, methylation analysis, and specific degradations whereby it could be concluded that the polysaccharide is composed of hexasaccharide repeating-units having the structure: [structure: see text].

• Compound ID: 3593
  

  a-D-Galp-(1-3)-+ a-D-Glcp-(1-2)-a-D-Glcp-(1-3)-+ | | -4)-a-L-FucpNAc-(1-3)-b-D-GalpNAc-(1-4)-b-D-ManpNAcA-(1-

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  Structure type: polymer chemical repeating unit
  Compound class: CPS
  Reference(s) to other database(s): GTC:G24656TX, GlycomeDB:9496
  
   
  
  Streptococcus pneumoniae 12F
  CSDB ID 112190 (all data & tools)