Alpha-glucans are made of polymerized glucose linked together by alpha-glucosidic bonds. Pullulan, starch, and glycogen are the most often investigated alpha-glucans.
References
Boraston, A. B., Lammerts van Bueren, A., Ficko-Blean, E., & Abbott, D. W. (2007). Carbohydrate–protein interactions: Carbohydrate-binding modules. Comprehensive Glycoscience, 661–696. Click here to redirect detail information.