Nine newly identified individuals refine the phenotype associated with MYT1L mutations
| العنوان: | Nine newly identified individuals refine the phenotype associated with MYT1L mutations |
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| المؤلفون: | Jessika Johannsen, Jonas Denecke, Roberto Colombo, Tatjana Bierhals, Marta Bertoli, Franziska Degenhardt, Eva Wohlleber, Tim M. Strom, Alexander M. Zink, Jessica Becker, Davor Lessel, Elisabeth Mangold, Dagmar Wieczorek, Laura M Yates, Kirsten Cremer, Hartmut Engels, Kerstin U. Ludwig, Sophia Peters, Theresia Herget, Maja Hempel, Isabelle C Windheuser, Hela Hundertmark |
| المصدر: | Am. J. Med. Genet. A 182, 1021-1031 (2020) |
| بيانات النشر: | Wiley, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Adult, Male, 0301 basic medicine, Microcephaly, Adolescent, Medizin, Nerve Tissue Proteins, Haploinsufficiency, 030105 genetics & heredity, Biology, Polymorphism, Single Nucleotide, Short stature, Young Adult, 03 medical and health sciences, Intellectual Disability, Exome Sequencing, Intellectual disability, Genetics, medicine, Humans, Point Mutation, Genetic Predisposition to Disease, Obesity, Child, Genetics (clinical), Exome sequencing, Point mutation, Macrocephaly, Microarray Analysis, medicine.disease, Phenotype, 030104 developmental biology, Child, Preschool, Chromosomes, Human, Pair 2, Female, Chromosomal Microarray, Microdeletion 2p25, 3, Myt1l, Whole Exome Sequencing, Chromosome Deletion, medicine.symptom, Transcription Factors |
| الوصف: | Both point mutations and deletions of the MYT1L gene as well as microdeletions of chromosome band 2p25.3 including MYT1L are associated with intellectual disability, obesity, and behavioral problems. Thus, MYT1L is assumed to be the-at least mainly-causative gene in the 2p25.3 deletion syndrome. Here, we present comprehensive descriptions of nine novel individuals bearing MYT1L mutations; most of them single nucleotide variants (SNVs). This increases the number of known individuals with causative deletions or SNVs of MYT1L to 51. Since eight of the nine novel patients bear mutations affecting MYT1L only, the total number of such individuals now nearly equals the number of individuals with larger microdeletions affecting additional genes, allowing for a comprehensive phenotypic comparison of these two patient groups. For example, 55% of the individuals with mutations affecting MYT1L only were overweight or obese as compared to 86% of the individuals with larger microdeletions. A similar trend was observed regarding short stature with 5 versus 35%, respectively. However, these differences were nominally significant only after correction for multiple testing, further supporting the hypothesis that MYT1L haploinsufficiency is central to the 2p25.3 deletion phenotype. Most importantly, the large number of individuals with MYT1L mutations presented and reviewed here allowed for the delineation of a more comprehensive clinical picture. Seizures, postnatal short stature, macrocephaly, and microcephaly could be shown to be over-represented among individuals with MYT1L mutations. |
| وصف الملف: | application/pdf |
| تدمد: | 1552-4833 1552-4825 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d6687b40b1f36cdad3881b0200ff57d0Test https://doi.org/10.1002/ajmg.a.61515Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....d6687b40b1f36cdad3881b0200ff57d0 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15524833 15524825 |
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