Figure 1
Diagrammatic representation of amylopectin structure. A, Connection of glucosyl units via a(1-4) and a(1-6) glycoside linkages. B, The cluster model of amylopectin structure. Solid lines indicate glucan chains, and intersections between them indicate branch linkages. Dotted lines indicate the boundaries of amylopectin side chain clusters in which primarily unbranched chains associate in tightly packed double helices. “a” indicates amorphous regions between clusters.