دورية أكاديمية
De novo and inherited private variants in MAP1B in periventricular nodular heterotopia.
| العنوان: | De novo and inherited private variants in MAP1B in periventricular nodular heterotopia. |
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| المؤلفون: | Erin L Heinzen, Adam C O'Neill, Xiaolin Zhu, Andrew S Allen, Melanie Bahlo, Jamel Chelly, Ming Hui Chen, William B Dobyns, Saskia Freytag, Renzo Guerrini, Richard J Leventer, Annapurna Poduri, Stephen P Robertson, Christopher A Walsh, Mengqi Zhang, Epi4K Consortium, Epilepsy Phenome/Genome Project |
| المصدر: | PLoS Genetics, Vol 14, Iss 5, p e1007281 (2018) |
| بيانات النشر: | Public Library of Science (PLoS), 2018. |
| سنة النشر: | 2018 |
| المجموعة: | LCC:Genetics |
| مصطلحات موضوعية: | Genetics, QH426-470 |
| الوصف: | Periventricular nodular heterotopia (PVNH) is a malformation of cortical development commonly associated with epilepsy. We exome sequenced 202 individuals with sporadic PVNH to identify novel genetic risk loci. We first performed a trio-based analysis and identified 219 de novo variants. Although no novel genes were implicated in this initial analysis, PVNH cases were found overall to have a significant excess of nonsynonymous de novo variants in intolerant genes (p = 3.27x10-7), suggesting a role for rare new alleles in genes yet to be associated with the condition. Using a gene-level collapsing analysis comparing cases and controls, we identified a genome-wide significant signal driven by four ultra-rare loss-of-function heterozygous variants in MAP1B, including one de novo variant. In at least one instance, the MAP1B variant was inherited from a parent with previously undiagnosed PVNH. The PVNH was frontally predominant and associated with perisylvian polymicrogyria. These results implicate MAP1B in PVNH. More broadly, our findings suggest that detrimental mutations likely arising in immediately preceding generations with incomplete penetrance may also be responsible for some apparently sporadic diseases. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1553-7390 1553-7404 |
| Relation: | https://doaj.org/toc/1553-7390; https://doaj.org/toc/1553-7404 |
| DOI: | 10.1371/journal.pgen.1007281 |
| URL الوصول: | https://doaj.org/article/39581fdc43d744058838751411b69c7f |
| رقم الأكسشن: | edsdoj.39581fdc43d744058838751411b69c7f |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15537390 15537404 |
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| DOI: | 10.1371/journal.pgen.1007281 |