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Search: WFRF:(Kircher T. T. J.) > (2016) > ALG1-CDG: Clinical ...

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ALG1-CDG: Clinical and Molecular Characterization of 39 Unreported Patients.

Ng, Bobby G (author)
Shiryaev, Sergey A (author)
Rymen, Daisy (author)
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Eklund, Erik (author)
Lund University,Lunds universitet,Pediatrik, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Paediatrics (Lund),Section V,Department of Clinical Sciences, Lund,Faculty of Medicine
Raymond, Kimiyo (author)
Kircher, Martin (author)
Abdenur, Jose E (author)
Alehan, Fusun (author)
Midro, Alina T (author)
Bamshad, Michael J (author)
Barone, Rita (author)
Berry, Gerard T (author)
Brumbaugh, Jane E (author)
Buckingham, Kati J (author)
Clarkson, Katie (author)
Cole, F Sessions (author)
O'Connor, Shawn (author)
Cooper, Gregory M (author)
Van Coster, Rudy (author)
Demmer, Laurie A (author)
Diogo, Luisa (author)
Fay, Alexander J (author)
Ficicioglu, Can (author)
Fiumara, Agata (author)
Gahl, William A (author)
Ganetzky, Rebecca (author)
Goel, Himanshu (author)
Harshman, Lyndsay A (author)
He, Miao (author)
Jaeken, Jaak (author)
James, Philip M (author)
Katz, Daniel (author)
Keldermans, Liesbeth (author)
Kibaek, Maria (author)
Kornberg, Andrew J (author)
Lachlan, Katherine (author)
Lam, Christina (author)
Yaplito-Lee, Joy (author)
Nickerson, Deborah A (author)
Peters, Heidi L (author)
Race, Valerie (author)
Régal, Luc (author)
Rush, Jeffrey S (author)
Rutledge, S Lane (author)
Shendure, Jay (author)
Souche, Erika (author)
Sparks, Susan E (author)
Trapane, Pamela (author)
Sanchez-Valle, Amarilis (author)
Vilain, Eric (author)
Vøllo, Arve (author)
Waechter, Charles J (author)
Wang, Raymond Y (author)
Wolfe, Lynne A (author)
Wong, Derek A (author)
Wood, Tim (author)
Yang, Amy C (author)
Matthijs, Gert (author)
Freeze, Hudson H (author)
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 (creator_code:org_t)
2016-03-21
2016
English.
In: Human Mutation. - : Hindawi Limited. - 1059-7794.
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Congenital disorders of glycosylation (CDG) arise from pathogenic mutations in over one hundred genes leading to impaired protein or lipid glycosylation. ALG1 encodes a β1,4 mannosyltransferase that catalyzes the addition of the first of nine mannose moieties to form a dolichol-lipid linked oligosaccharide intermediate (DLO) required for proper N-linked glycosylation. ALG1 mutations cause a rare autosomal recessive disorder termed ALG1-CDG. To date thirteen mutations in eighteen patients from fourteen families have been described with varying degrees of clinical severity. We identified and characterized thirty-nine previously unreported cases of ALG1-CDG from thirty-two families and add twenty-six new mutations. Pathogenicity of each mutation was confirmed based on its inability to rescue impaired growth or hypoglycosylation of a standard biomarker in an alg1-deficient yeast strain. Using this approach we could not establish a rank order comparison of biomarker glycosylation and patient phenotype, but we identified mutations with a lethal outcome in the first two years of life. The recently identified protein-linked xeno-tetrasaccharide biomarker, NeuAc-Gal-GlcNAc2 , was seen in all twenty-seven patients tested. Our study triples the number of known patients and expands the molecular and clinical correlates of this disorder. This article is protected by copyright. All rights reserved.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Medicinsk genetik (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Medical Genetics (hsv//eng)

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