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In the figure below, N- and O-glycosidic linkages are depicted. Why are these linkages called N- and O-glycosidic linkages?

User Choya
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Final answer:

N-glycosidic and O-glycosidic linkages are named based on the atoms involved in the bond formation. In N-glycosidic linkages, the bond is formed between the anomeric carbon and a nitrogen atom, while in O-glycosidic linkages, the bond is formed between the anomeric carbon and an oxygen atom. These naming conventions help describe the structures and properties of these linkages.

Step-by-step explanation:

N-glycosidic and O-glycosidic linkages are named based on the atoms involved in the bond formation. In an N-glycosidic linkage, the bond is formed between the anomeric carbon of a sugar and the nitrogen atom of another molecule, usually an amine group. In an O-glycosidic linkage, the bond is formed between the anomeric carbon and an oxygen atom.

For example, in the disaccharide lactose, the N-glycosidic linkage is formed between the anomeric carbon of galactose and the nitrogen atom of lactose's other sugar, glucose. The O-glycosidic linkage in maltose, on the other hand, is formed between the anomeric carbon of one glucose molecule and the oxygen atom of the other glucose molecule.

These naming conventions help differentiate between the different types of glycosidic linkages and provide a way to describe their structures and properties.

User ObsessiveCookie
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