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. 2021 Nov;23(11):2150-2159.
doi: 10.1038/s41436-021-01263-1. Epub 2021 Aug 3.

Integrative approach to interpret DYRK1A variants, leading to a frequent neurodevelopmental disorder

Jérémie Courraud  1   2   3   4 Eric Chater-Diehl  5 Benjamin Durand  1   2   3   4 Marie Vincent  6 Maria Del Mar Muniz Moreno  1   2   3   4 Imene Boujelbene  1   2   3   4   7 Nathalie Drouot  1   2   3   4 Loréline Genschik  1   2   3   4 Elise Schaefer  8 Mathilde Nizon  6 Bénédicte Gerard  7 Marc Abramowicz  9 Benjamin Cogné  6 Lucas Bronicki  10 Lydie Burglen  11 Magalie Barth  12 Perrine Charles  13 Estelle Colin  12 Christine Coubes  14 Albert David  6 Bruno Delobel  15 Florence Demurger  16 Sandrine Passemard  17 Anne-Sophie Denommé  18   19 Laurence Faivre  18 Claire Feger  7 Mélanie Fradin  20 Christine Francannet  21 David Genevieve  14 Alice Goldenberg  22 Anne-Marie Guerrot  22 Bertrand Isidor  6 Katrine M Johannesen  23   24 Boris Keren  13 Maria Kibæk  25 Paul Kuentz  18 Michèle Mathieu-Dramard  26 Bénédicte Demeer  26 Julia Metreau  27 Rikke Steensbjerre Møller  23   24 Sébastien Moutton  18 Laurent Pasquier  20 Kristina Pilekær Sørensen  25 Laurence Perrin  28 Mathilde Renaud  29 Pascale Saugier  22 Marlène Rio  30 Joane Svane  25 Julien Thevenon  31 Frédéric Tran Mau Them  18   19 Cathrine Elisabeth Tronhjem  25 Antonio Vitobello  18 Valérie Layet  32 Stéphane Auvin  33 Khaoula Khachnaoui  34 Marie-Christine Birling  35 Séverine Drunat  36 Allan Bayat  25 Christèle Dubourg  37 Salima El Chehadeh  7 Christina Fagerberg  25 Cyril Mignot  12 Michel Guipponi  9 Thierry Bienvenu  38 Yann Herault  1   2   3   4 Julie Thompson  39 Marjolaine Willems  14 Jean-Louis Mandel  1   2   3   4 Rosanna Weksberg  5   40   41   42   43 Amélie Piton  44   45   46   47   48   49
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Free article

Integrative approach to interpret DYRK1A variants, leading to a frequent neurodevelopmental disorder

Jérémie Courraud et al. Genet Med. 2021 Nov.
Free article

Abstract

Purpose: DYRK1A syndrome is among the most frequent monogenic forms of intellectual disability (ID). We refined the molecular and clinical description of this disorder and developed tools to improve interpretation of missense variants, which remains a major challenge in human genetics.

Methods: We reported clinical and molecular data for 50 individuals with ID harboring DYRK1A variants and developed (1) a specific DYRK1A clinical score; (2) amino acid conservation data generated from 100 DYRK1A sequences across different taxa; (3) in vitro overexpression assays to study level, cellular localization, and kinase activity of DYRK1A mutant proteins; and (4) a specific blood DNA methylation signature.

Results: This integrative approach was successful to reclassify several variants as pathogenic. However, we questioned the involvement of some others, such as p.Thr588Asn, still reported as likely pathogenic, and showed it does not cause an obvious phenotype in mice.

Conclusion: Our study demonstrated the need for caution when interpreting variants in DYRK1A, even those occurring de novo. The tools developed will be useful to interpret accurately the variants identified in the future in this gene.

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