Question: Which amino acids connect to o linked glycosidic bonds and which amino acids to n linked glycosidic bonds?  Edit

Answer: Carbohydrate groups are covalently attached to many different proteins to form glycoproteins. The process called glycosylation. There are two types of glycosidic bonds that can occur in this process, called N-linkage and O-linkage.

N-glycosidic bond, linkage:
a type of carbohydrate-protein covalent linkage between an asparagine side chain amide and a sugar; type I linkage.
O-glycosidic bond, linkage:
a type of carbohydrate-protein covalent linkage between a serine or threonine hydroxyl side chain amide and a sugar; type II linkage.

For the structures kindly visit
http://en.wikibooks.org/wiki/Structural_Biochemistry/Proteins/Protein_Glycosylation
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