ARR4 Genetic Variants Associated with High Myopia in a Southern Chinese Family

Genetic data from a study identifying a novel nonsense mutation in the ARR4 gene linked to high myopia. The research, conducted by Dejian Yuan of Liuzhou Maternal and Child Health Hospital, used exome sequencing on a Southern Chinese family and found a case contradicting the previously assumed X-linked, female-limited inheritance pattern. The results expand the known variant spectrum for ARR4 and provide information for genetic counseling and diagnosis.

Use Cases

• Train models to predict pathogenicity of ARR4 gene variants based on mutation type and inheritance patterns described.
• Analyze genotype-phenotype correlations for high myopia using the family co-segregation data mentioned.
• Study complex X-linked inheritance patterns in ophthalmological genetics based on the described genetic paradox.

Strengths

• Identifies a novel, specific truncated mutation (ARR4: c.569C>G, p.S190*) not previously reported.
• Provides evidence challenging a prior genetic assumption, showing high myopia caused by ARR4 is not exclusively X-linked and female-limited.
• Links the mutant protein's behavior to ER stress and proteasomal degradation pathways.

Limitations

• Row count is unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Data may reflect geographic bias inherent to the single Southern Chinese family studied.

Provenance

Source

Liuzhou Maternal and Child Health Hospital

Collection Method

Exome sequencing (ES) conducted on a Southern Chinese family.

Geography

Southern China