label: [3)-alpha-D-Fucp4N,NAc-(1->4)-alpha-D-GalpA-(1->3)-alpha-D-GalpA-(1->]n
label_lc: [3)-alpha-d-fucp4n,nac-(1->4)-alpha-d-galpa-(1->3)-alpha-d-galpa-(1->]n
description: "A polysaccharide derivative comprising a trisaccharide repeating unit consisting of 2-acetamido-4-amino-2,4-dideoxy-alpha-D-fucose and two alpha-D-galacturonic acid residues linked sequentially (1->4) and (1->3) and with the trisaccharide repeats themselves being linked (1->3); corresponds to the serotype 1 capsular polysaccharide (CPS) of Streptococcus pneumoniae."