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OCA2 common variant NM_000275.3:c.574-19A>G affects splicing and is pathogenic
Modibo Diallo1, Alicia Defay-Stinat1, Claudio Plaisant2
1Laboratoire Maladies Rares, Génétique et Métabolisme, Bordeaux University INSERM U1211, Bordeaux, France.
Molecular Genetics and Metabolism Reports
|June 30, 2026
Summary
This study highlights a common intronic variant in the OCA2 gene that causes albinism by affecting gene splicing. This finding expands the diagnostic scope for albinism and other rare genetic disorders.
Area of Science:
- Genetics
- Ophthalmology
- Molecular Biology
Background:
- Albinism is a group of genetic disorders characterized by hypopigmentation due to impaired melanin synthesis.
- Most known pathogenic variants causing albinism are rare and located in coding regions.
- The role of common non-coding variants in albinism pathogenesis is often overlooked.
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