Improved locus-specific database for OPA1 mutations allows inclusion of advanced clinical data

Area of Science:

• Genetics
• Ophthalmology
• Neurology

Background:

• Autosomal-dominant optic atrophy (ADOA) is the most prevalent inherited optic neuropathy.
• Mutations in the optic atrophy 1 (OPA1) gene account for 60%-80% of ADOA cases.
• Clinical heterogeneity in patients with OPA1 variants complicates genotype-phenotype correlations.

Purpose of the Study:

• To update the OPA1 locus-specific database (LSDB) with new clinical and genetic knowledge.
• To develop a clinico-biological database integrating clinical phenotypes with OPA1 variants.
• To facilitate molecular diagnoses, variant statistics, and genotype-phenotype correlations in ADOA.

Main Methods:

• Utilized the Leiden Open-Source Variation Database to create an updated OPA1 LSDB.
• Registered previously reported and new patients to validate the database.
• Enabled online submissions for clinical and molecular descriptions of OPA1 variant phenotypes, including ophthalmological and neurological data.

Main Results:

• The updated OPA1 LSDB (http://opa1.mitodyn.org/) is now available.
• The database successfully integrated clinical phenotypes with OPA1 variants.
• Validation included data from literature and new patient cohorts.

Conclusions:

• The updated OPA1 LSDB is a valuable resource for the ADOA research community.
• It supports improved molecular diagnostics and understanding of genotype-phenotype relationships.
• The database facilitates large-scale variant analysis and clinical correlation studies.