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Updated: May 10, 2026
09:54
Identification and Characterization of Protein Glycosylation using Specific Endo- and Exoglycosidases
Published on: December 26, 2011
Congenital protein hypoglycosylation diseases
1Department of Pediatrics, Levine Children's Hospital at Carolinas Medical Center, Charlotte, NC, USA; Department of Pediatrics, University of North Carolina School of Medicine, Chapel Hill, NC, USA.
The Application of Clinical Genetics
|June 19, 2013
Summary
Glycosylation, the attachment of sugars to proteins and lipids, is vital for life. This review covers over 40 congenital protein hypoglycosylation diseases affecting multiple systems.
Area of Science:
- Biochemistry
- Genetics
- Molecular Biology
Background:
- Glycosylation is a fundamental biological process involving the enzymatic addition of carbohydrates to proteins and lipids.
- This process is essential for cellular function, protein folding, stability, and signaling.
- Defects in glycosylation lead to a range of inherited disorders affecting multiple organ systems.
Purpose of the Study:
- To provide a comprehensive overview of inherited disorders of glycosylation.
- To review the current understanding of defects in N-linked, O-linked, and combined glycosylation pathways.
- To highlight the multisystemic nature of congenital protein hypoglycosylation diseases.
Main Methods:
- Literature review of scientific articles and databases.
- Synthesis of information on identified genetic defects in glycosylation.
- Classification of disorders based on affected glycosylation pathways (N-linked, O-linked, combined).
Main Results:
- Over 40 distinct congenital protein hypoglycosylation diseases have been identified since the 1980s.
- These disorders result from inherited defects in the complex enzymatic machinery of glycosylation.
- The identified defects impact N-linked glycosylation, O-linked glycosylation, and combined pathways.
Conclusions:
- Inherited disorders of glycosylation are a significant group of rare genetic diseases.
- These conditions are inherently multisystemic due to the widespread role of glycosylation.
- Further research into glycosylation pathways is crucial for understanding and treating these complex disorders.
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