Prof. Dr. Sabine Strahl
The concert of dolichol-based glycosylation:
from molecules to desease models
The covalent attachment of sugar units to proteins is a complex posttranslational modification found in all domains of life. N-glycosylation, C-mannosylation and O-mannosylation are prevalent and highly conserved glycosylation pathways, all essential for vertebrate development. The three pathways start in the endoplasmic reticulum, are based on the lipid dolichol and compete for both mannosyl donor substrates and acceptor proteins, which in many cases receive more than one type of glycan. Along these three glycosylation routes, today we know of endoplasmic reticulum associated defects in over 30 genes that cause devastating multisystemic disease manifestations (congenital disorders of glycosylation (CDG-I)), underlining the importance of these processes.
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