1. De Novo Mutations in Protein Kinase Genes CAMK2A and CAMK2B Cause Intellectual Disability
- Author
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Küry, Sébastien, van Woerden, Geeske M, Besnard, Thomas, Onori, Martina Proietti, Latypova, Xénia, Towne, Meghan C, Cho, Megan T, Prescott, Trine E, Ploeg, Melissa A, Sanders, Stephan, Stessman, Holly AF, Pujol, Aurora, Distel, Ben, Robak, Laurie A, Bernstein, Jonathan A, Denommé-Pichon, Anne-Sophie, Lesca, Gaëtan, Sellars, Elizabeth A, Berg, Jonathan, Carré, Wilfrid, Busk, Øyvind Løvold, van Bon, Bregje WM, Waugh, Jeff L, Deardorff, Matthew, Hoganson, George E, Bosanko, Katherine B, Johnson, Diana S, Dabir, Tabib, Holla, Øystein Lunde, Sarkar, Ajoy, Tveten, Kristian, de Bellescize, Julitta, Braathen, Geir J, Terhal, Paulien A, Grange, Dorothy K, van Haeringen, Arie, Lam, Christina, Mirzaa, Ghayda, Burton, Jennifer, Bhoj, Elizabeth J, Douglas, Jessica, Santani, Avni B, Nesbitt, Addie I, Helbig, Katherine L, Andrews, Marisa V, Begtrup, Amber, Tang, Sha, van Gassen, Koen LI, Juusola, Jane, Foss, Kimberly, Enns, Gregory M, Moog, Ute, Hinderhofer, Katrin, Paramasivam, Nagarajan, Lincoln, Sharyn, Kusako, Brandon H, Lindenbaum, Pierre, Charpentier, Eric, Nowak, Catherine B, Cherot, Elouan, Simonet, Thomas, Ruivenkamp, Claudia AL, Hahn, Sihoun, Brownstein, Catherine A, Xia, Fan, Schmitt, Sébastien, Deb, Wallid, Bonneau, Dominique, Nizon, Mathilde, Quinquis, Delphine, Chelly, Jamel, Rudolf, Gabrielle, Sanlaville, Damien, Parent, Philippe, Gilbert-Dussardier, Brigitte, Toutain, Annick, Sutton, Vernon R, Thies, Jenny, Peart-Vissers, Lisenka ELM, Boisseau, Pierre, Vincent, Marie, Grabrucker, Andreas M, Dubourg, Christèle, Network, Undiagnosed Diseases, Tan, Wen-Hann, Verbeek, Nienke E, Granzow, Martin, Santen, Gijs WE, Shendure, Jay, Isidor, Bertrand, Pasquier, Laurent, Redon, Richard, Yang, Yaping, State, Matthew W, Kleefstra, Tjitske, Cogné, Benjamin, HUGO, GEM, Study, Deciphering Developmental Disorders, Petrovski, Slavé, and Retterer, Kyle
- Subjects
Biological Sciences ,Bioinformatics and Computational Biology ,Biomedical and Clinical Sciences ,Neurosciences ,Brain Disorders ,Genetics ,Intellectual and Developmental Disabilities (IDD) ,Pediatric ,Underpinning research ,1.1 Normal biological development and functioning ,Aetiology ,2.1 Biological and endogenous factors ,Neurological ,Animals ,Brain ,Calcium-Calmodulin-Dependent Protein Kinase Type 2 ,Cell Line ,Exome ,Female ,Glutamic Acid ,HEK293 Cells ,Humans ,Intellectual Disability ,Male ,Mice ,Mice ,Inbred C57BL ,Mutation ,Neurons ,Phosphorylation ,Signal Transduction ,Undiagnosed Diseases Network ,GEM HUGO ,Deciphering Developmental Disorders Study ,AMPAR ,CAMK2 ,CAMK2A ,CAMK2B ,NMDAR ,de novo mutations ,intellectual disability ,synaptic plasticity ,Medical and Health Sciences ,Genetics & Heredity ,Biological sciences ,Biomedical and clinical sciences ,Health sciences - Abstract
Calcium/calmodulin-dependent protein kinase II (CAMK2) is one of the first proteins shown to be essential for normal learning and synaptic plasticity in mice, but its requirement for human brain development has not yet been established. Through a multi-center collaborative study based on a whole-exome sequencing approach, we identified 19 exceedingly rare de novo CAMK2A or CAMK2B variants in 24 unrelated individuals with intellectual disability. Variants were assessed for their effect on CAMK2 function and on neuronal migration. For both CAMK2A and CAMK2B, we identified mutations that decreased or increased CAMK2 auto-phosphorylation at Thr286/Thr287. We further found that all mutations affecting auto-phosphorylation also affected neuronal migration, highlighting the importance of tightly regulated CAMK2 auto-phosphorylation in neuronal function and neurodevelopment. Our data establish the importance of CAMK2A and CAMK2B and their auto-phosphorylation in human brain function and expand the phenotypic spectrum of the disorders caused by variants in key players of the glutamatergic signaling pathway.
- Published
- 2017