Protein glycosylation in prokaryotes and eukaryotes

Abstract

Protein glycosylation can be classified according to their respective invariant core structures and the linkage to amino acids of the proteins. The main types of protein glycosylation are N-linked glycosylation, O-linked glycosylation, and C-linked glycosylation resulting in N-glycans, O-glycans, and C-glycans, respectively. The core structures are further elongated with the exception of C-linked glycosylation and O-linked GlcNAcylation.