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YAMAMOTO Toshiyuki
Department School of Medicine(Tokyo Women's Medical University Hospital), School of Medicine Position Professor |
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| Article types | Case report |
| Language | English |
| Peer review | Peer reviewed |
| Title | A novel TUBB3 mutation in a sporadic patient with asymmetric cortical dysplasia. |
| Journal | Formal name：American Journal of Medical Genetics. Part A Abbreviation：Am J Med Genet A ISSN code：15524825/15524833 |
| Domestic / Foregin | Foregin |
| Volume, Issue, Page | 170A(4),pp.1076-1079 |
| Author and coauthor | Shimojima K, Okamoto N, Yamamoto T |
| Publication date | 2016/04 |
| Summary | Recent advances in molecular technology have led to the discovery of several genes related to human malformations of cortical development (MCDs). The beta-tubulin class III gene (TUBB3) was identified as a gene responsible for MCDs. Although mouse-model experiments have not revealed any findings of neuronal migration disorders, human TUBB3 mutations have been identified in patients with congenital fibrosis of the extraocular muscles. Since the discovery of a TUBB3 mutation, only 15 mutations have been identified. In this study, comprehensive mutation screening through next-generation sequencing identified a novel TUBB3 mutation (p.Ser230Leu) in a sporadic patient with moderate developmental delay associated with mild MCD. Compared to patients with the alpha-tubulin class 1a gene (TUBA1A) mutations, patients with TUBB3 mutations show milder phenotypic manifestations and milder MCD. Therefore, patients with milder MCD manifestations may be under-diagnosed, and TUBB3 mutations may be rarely identified. Additional genotype-phenotype information should be accumulated for further understanding of the TUBB3 functional relevance. |
| DOI | 10.1002/ajmg.a.37545 |
| PMID | 26739025 |