Structure of heparan sulfate, one of the molecules that builds up in the tissues of people with<unk>  Glycosaminoglycans (GAGs) are chains of sugar molecules. They are found in the extracellular matrix and the cell membrane, or stored in the secretory granules. GAGs are stored in the cell lysosome, and are degraded by enzymes such as glycosidases, sulfatases, and acetyltransferases. Deficiency in these enzymes lead to the four subtypes of MPS III.
Sanfilippo syndrome
Autism spectrum
DeSanto-Shinawi syndrome
Filippi Syndrome
Treacher Collins syndrome
Pelger–Huët anomaly
Van der Woude syndrome
Van Gogh syndrome