Notes: L-(−)-Fucose is a deoxyhexose monosaccharide found on N- and O-linked glycans and glycolipids of a wide variety of organisms.{26957} It can exist as a terminal modification of glycan structures or serve as a point of attachment for adding other sugars.{26958} In humans, L-(−)-fucose plays a role in A and B blood group antigen substructure determination, selectin-mediated leukocyte-endothelial adhesion, and host-microbe interactions.{26957}