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Updated: Aug 17, 2025

Targeted Next-generation Sequencing and Bioinformatics Pipeline to Evaluate Genetic Determinants of Constitutional Disease
Published on: April 4, 2018
TogoVar: A comprehensive Japanese genetic variation database.
Nobutaka Mitsuhashi1, Licht Toyo-Oka2,3, Toshiaki Katayama4
1Database Center for Life Science, Joint Support-Center for Data Science Research, Research Organization of Information and Systems, University of Tokyo Kashiwanoha-campus Station Satellite 6F, 178-4-4, Wakashiba, Kashiwa, Chiba, 277-0871, Japan. mitsuhashi@dbcls.rois.ac.jp.
TogoVar is a new database providing allele frequencies for Japanese populations, aiding genetic studies. It integrates data to compare Japanese and non-Japanese variant frequencies, enhancing variant interpretation.
Area of Science:
- Genomics
- Bioinformatics
- Population Genetics
Background:
- Genetic variation data is crucial for understanding population-specific traits and diseases.
- Existing databases may lack comprehensive allele frequency data for Japanese populations.
- Controlled-access genomic data requires specific reanalysis schemes for public use.
Purpose of the Study:
- To develop TogoVar, a database integrating allele frequencies from Japanese populations.
- To enable comparison of allele frequencies between Japanese and non-Japanese populations.
- To provide comprehensive annotations for variant interpretation and prioritization.
Main Methods:
- Reanalyzing individual-level genome sequence data from the Japanese Genotype-phenotype Archive (JGA).
- Integrating public datasets of Japanese and non-Japanese population genetic data.
- Assigning permanent TogoVar IDs to Japanese population variants.
- Annotating variants with molecular consequence, pathogenicity, and literature information.
Main Results:
- Established a scheme for reanalyzing JGA data to generate public allele frequencies.
- Integrated Japanese and non-Japanese population datasets for comparative analysis.
- Developed a comprehensive annotation system for genetic variants.
- Created TogoVar (https://togovar.org) as a publicly accessible resource.
Conclusions:
- TogoVar serves as a valuable reference for genetic studies in Japanese populations.
- The database facilitates the comparison of genetic variation across diverse populations.
- Integrated annotations in TogoVar aid in the interpretation and prioritization of genetic variants.
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