label: galactosaminogalactan
label_lc: galactosaminogalactan
description: "An exopolysaccharide composed of alpha1->4 linked galactose and alpha1->4 linked N-acetylgalactosamine (GalNAc) residues where both monosacharides are randomly distributed. It is secreted by the opportunistic fungal pathogens, Aspergillus fumigatus and Aspergillus niger."