| Autor: |
Zhiying Xie, Chang Liu, Yanyu Lu, Chengyue Sun, Yilin Liu, Meng Yu, Junlong Shu, Lingchao Meng, Jianwen Deng, Wei Zhang, Zhaoxia Wang, He Lv, Yun Yuan |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Frontiers in Genetics, Vol 13 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
1664-8021 |
| DOI: |
10.3389/fgene.2022.979732 |
| Popis: |
The precise identification of pathogenic DMD variants is sometimes rather difficult, mainly due to complex structural variants (SVs) and deep intronic splice-altering variants. We performed genomic long-read whole DMD gene sequencing in a boy with asymptomatic hyper-creatine kinase-emia who remained genetically undiagnosed after standard genetic testing, dystrophin protein and DMD mRNA studies, and genomic short-read whole DMD gene sequencing. We successfully identified a novel pathogenic SV in DMD intron 1 via long-read sequencing. The deep intronic SV consists of a long interspersed nuclear element-1 (LINE-1) insertion/non-tandem duplication rearrangement causing partial exonization of the LINE-1, establishing a genetic diagnosis of Becker muscular dystrophy. Our study expands the genetic spectrum of dystrophinopathies and highlights the significant role of disease-causing LINE-1 insertions in monogenic diseases. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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