http://www.cnr.it/ontology/cnr/individuo/prodotto/ID215300
COG5-CDG: expanding the clinical spectrum (Articolo in rivista)
- Type
- Label
- COG5-CDG: expanding the clinical spectrum (Articolo in rivista) (literal)
- Anno
- 2012-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1186/1750-1172-7-94 (literal)
- Alternative label
D.Rymen, L.Keldermans, V.Race, L.Régal, N.Deconinck, C.Dionisi-Vici, C.Fung, L.Sturiale, C.Rosnoblet, F.Foulquier, G.Matthijs, J.Jaeken (2012)
COG5-CDG: expanding the clinical spectrum
in Orphanet journal of rare diseases
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- D.Rymen, L.Keldermans, V.Race, L.Régal, N.Deconinck, C.Dionisi-Vici, C.Fung, L.Sturiale, C.Rosnoblet, F.Foulquier, G.Matthijs, J.Jaeken (literal)
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- Rivista
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- Note
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- Centre for Human Genetics, University of Leuven, Leuven, Belgium
Centre for Metabolic Diseases, University Hospital Gasthuisberg, Herestraat 49, BE -3000 Leuven, Belgium
University Children's Hospital Queen Fabiola, Brussels, Belgium
Division of Metabolism, Bambino Gesù Hospital, Rome, Italy
Duchess of Kent Children's Hospital, University of Hong Kong, Pokfulam, Hong Kong
Institute of Chemistry and Technology of Polymers, Catania, Sicily
Structural and Functional Glycobiology Unit, University of Lille 1, Lille 1, France (literal)
- Titolo
- COG5-CDG: expanding the clinical spectrum (literal)
- Abstract
- Background
The Conserved Oligomeric Golgi (COG) complex is involved in the retrograde trafficking of Golgi components, thereby affecting the localization of Golgi glycosyltransferases.
Deficiency of a COG-subunit leads to defective protein glycosylation, and thus Congenital Disorders of Glycosylation (CDG). Mutations in subunits 1, 4, 5, 6, 7 and 8 have been
associated with CDG-II. The first patient with COG5-CDG was recently described (Paesold-Burdaet al. Hum Mol Genet 2009; 18:4350-6). Contrary to most other COG-CDG cases, the patient presented a mild/moderate phenotype, i.e. moderate psychomotor retardation with language delay, truncal ataxia and slight hypotonia.
Methods
CDG-IIx patients from our database were screened for mutations in COG5. Clinical data were compared. Brefeldin A treatment of fibroblasts and immunoblotting experiments were performed to support the diagnosis.
Results and conclusion
We identified five new patients with proven COG5 deficiency. We conclude that the clinical picture is not always as mild as previously described. It rather
comprises a broad spectrum with phenotypes ranging from mild to very severe. Interestingly, on a clinical basis some of the patients present a significant overlap with COG7-CDG, a finding which can probably be explained by subunit interactions at the protein level (literal)
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