| Autor: |
Qi Peng, Keze Ma, Linsheng Wang, Yinghua Zhu, Yaozhong Zhang, Chunbao Rao, Dong Luo, Zaixue Jiang, Wei Lai, Huiling Lu, Chaohui Duan, Zhongjun Zhou, Xiaomei Lu |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Frontiers in Pediatrics, Vol 10 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2296-2360 |
| DOI: |
10.3389/fped.2022.889089 |
| Popis: |
BackgroundThe AIFM1 gene is located on chromosome Xq26.1 and encodes a flavoprotein essential for nuclear disassembly in apoptotic cells. Mutations in this gene can cause variable clinical phenotypes, but genotype-phenotype correlations of AIFM1-related disorder have not yet been fully determined because of the clinical scarcity.Case PresentationWe describe a 4-month-old infant with mitochondrial encephalopathy, carrying a novel intronic variant in AIFM1 (NM_004208.4: c.1164 + 5G > A). TA cloning of the complementary DNA (cDNA) and Sanger sequencing revealed the simultaneous presence of an aberrant transcript with exon 11 skipping (89 bp) and a normal transcript through analysis of mRNA extracted from the patient’s fibroblasts, which is consistent with direct RNA sequencing results.ConclusionWe verified the pathogenic effect of the AIFM1 c.1164 + 5G > A splicing variant, which disturbed normal mRNA splicing. Our findings expand the mutation spectrum of AIFM1 and point out the necessity of intronic sequence analysis and the importance for integrative functional studies in the interpretation of sequence variants. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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