colanic acid
colanic acid
A polyanionic heteropolysaccharide containing a repeat unit with <small>D</small>-glucose, <small>L</small>-fucose, <small>D</small>-galactose, and <small>D</small>-glucuronic acid sugars that are non-stoichiometrically decorated with <em>O</em>-acetyl and pyruvate side-chains