1. Missense MED12 variants in 22 males with intellectual disability: From nonspecific symptoms to complete syndromes
- Author
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Nuno Maia, Nekane Ibarluzea, Mala Misra‐Isrie, Daniel C. Koboldt, Isabel Marques, Gabriela Soares, Rosário Santos, Carlo L. M. Marcelis, Riikka Keski‐Filppula, Miriam Guitart, Elisabeth Gabau Vila, April Lehman, Scott Hickey, Mari Mori, Paulien Terhal, Irene Valenzuela, Amaia Lasa‐Aranzasti, Anna Maria Cueto‐González, Brian H. Chhouk, Rebecca C. Yeh, Jennifer E. Neil, Bassam Abu‐Libde, Tjitske Kleefstra, Mariet W. Elting, Andrea Császár, Judit Kárteszi, Beáta Bessenyei, Hans van Bokhoven, Paula Jorge, Johanna M. van Hagen, Arjan P. M. de Brouwer, Institut Català de la Salut, [Maia N, Marques I] Unidade de Genética Molecular, Centro de Genética Médica Doutor Jacinto de Magãlhaes (CGM), Centro Hospitalar Universitário do Porto (CHUPorto) Unit for Multidisciplinary Research In Biomedicine (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), and ITR - Laboratory for Integrative and Translational Research in Population Health, University of Porto, Porto, Portugal. [Ibarluzea N] Biocruces Bizkaia Health Research Institute, Barakaldo, Spain. [Misra-Isrie M] Department of Human Genetics, Amsterdam UMC, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands. [Koboldt DC] Steve and Cindy Institute for Genomic Medicine, Nationwide Children's Hospital, Columbus, Ohio, USA. Department of Pediatrics, The Ohio State University College of Medicine, Columbus, Ohio, USA. [Soares G] Unidade de Genética Médica, Centro de Genética Médica Doutor Jacinto de Magalhaes (CGM), Centro Hospitalar Universitário do Porto (CHUPorto), Porto, Portugal. [Valenzuela I] Servei de Genètica Clínica i Molecular, Vall d'Hebron Hospital Universitari, Barcelona, Spain. Grup de Recerca de Medicina Genètica, Vall d'Hebron Institut de Recerca (VHIR), Barcelona, Spain, Vall d'Hebron Barcelona Hospital Campus, Human genetics, and Amsterdam Reproduction & Development (AR&D)
- Subjects
Discapacitat intel·lectual - Aspectes genètics ,Anomalies cromosòmiques ,All institutes and research themes of the Radboud University Medical Center ,Neurodevelopmental disorders Donders Center for Medical Neuroscience [Radboudumc 7] ,Otros calificadores::Otros calificadores::/genética [Otros calificadores] ,Genetics ,Other subheadings::Other subheadings::/genetics [Other subheadings] ,fenómenos genéticos::variación genética::mutación::mutación de sentido erróneo [FENÓMENOS Y PROCESOS] ,Genetic Phenomena::Genetic Variation::Mutation::Mutation, Missense [PHENOMENA AND PROCESSES] ,enfermedades del sistema nervioso::manifestaciones neurológicas::manifestaciones neuroconductuales::discapacidad intelectual [ENFERMEDADES] ,Genetics (clinical) ,Nervous System Diseases::Neurologic Manifestations::Neurobehavioral Manifestations::Intellectual Disability [DISEASES] - Abstract
Genotype; Intellectual disability; Phenotype Genotipo; Discapacidad intelectual; Fenotipo Genotip; Discapacitat intel·lectual; Fenotip We describe the phenotype of 22 male patients (20 probands) carrying a hemizygous missense variant in MED12. The phenotypic spectrum is very broad ranging from nonspecific intellectual disability (ID) to the three well-known syndromes: Opitz–Kaveggia syndrome, Lujan–Fryns syndrome, or Ohdo syndrome. The identified variants were randomly distributed throughout the gene (p = 0.993, χ2 test), but mostly outside the functional domains (p = 0.004; χ2 test). Statistical analyses did not show a correlation between the MED12-related phenotypes and the locations of the variants (p = 0.295; Pearson correlation), nor the protein domain involved (p = 0.422; Pearson correlation). In conclusion, establishing a genotype–phenotype correlation in MED12-related diseases remains challenging. Therefore, we think that patients with a causative MED12 variant are currently underdiagnosed due to the broad patients' clinical presentations. Foundation for Science and Technology (FCT), Grant/Award Number: UIDB/00215/2020 UIDP/00215/2020 LA/P/0064/2020; Broad Institute; National Eye Institute; National Heart, Lung and Blood Institute, Grant/Award Number: UM1 HG008900; National Human Genome Research Institute, Grant/Award Number: R01 HG009141.
- Published
- 2023
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