Acharan sulfate, a recently discovered glycosaminoglycan isolated from Achatina fulica, has a major disaccharide repeating unit of fi4)-2-acetyl,2-deoxy-a-D-glucopyra-nose(1fi4)-2-sulfo-a-L-idopyranosyluronic acid (1fi,mak-ing it structurally related to both heparin and heparan sulfate. It has been suggested that this glycosaminoglycan is polydisperse, with an average molecular mass of 29 kDa andknownminor disaccharide sequence variants containing unsulfated iduronic acid.
