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Type I CDG

An N-linked CDG caused by defects in the assembly and transfer of oligosaccharide to an asparagine residue on a protein. Traditionally, CDG were classified as either Type I or Type II CDG, but this classification system can only differentiate CDG caused by defects in N-glycosylation and is no longer used to classify CDG types. Also called CDG-I.

CDG-I, Type 1 CDG