Digenic Mutations in Junctional Epidermolysis Bullosa in An Iranian Family
In this study, we describe one Iranian patient who was diagnosed with Epidermolysis Bullosa (EB) because of mutations in three candidate genes, including 3 mutations. Two missense mutations in the LAMA3 (D3134H) and LAMB3 (Y339H) genes and also, a synonymous mutation in the ITGB4 (H422H) gene were i...
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| Autores principales: | , , , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Royan Institute (ACECR), Tehran
2021
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| Materias: | |
| Acceso en línea: | https://doaj.org/article/6c7b457e830a4806a700491d2da2d330 |
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| Sumario: | In this study, we describe one Iranian patient who was diagnosed with Epidermolysis Bullosa (EB) because of mutations in three candidate genes, including 3 mutations. Two missense mutations in the LAMA3 (D3134H) and LAMB3 (Y339H) genes and also, a synonymous mutation in the ITGB4 (H422H) gene were identified that leads to the Junctional-EBHerlitz (JEB-Herlitz) clinical phenotype. The patient had a heterozygous LAMA3 mutation combined with a heterozygous mutation in LAMB3. Our results propose that these mutations produce novel protein-coding transcripts which explain the JEB-Herlitz phenotype in the patient. Interestingly, this is the first report indicating that a digenic inheritance in the LAMA3 and LAMB3 which is responsible for JEB-Herlitz. Also, this is the first digenic inheritance recognized in the JEB-Herlitz family. This study provides a new way to clarify the molecular mechanisms of LAMA3 and LAMB3 genes in JEB-Herlitz. |
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