RAVAR

RAVAR curates a comprehensive repository of published rare variant–trait associations to enable analysis of gene- and variant-level contributions to complex traits.

Key Features:

• Dataset size: Contains 95,047 high-quality rare variant associations compiled from 245 publications.
• Trait coverage: Records associations for 4,429 reported traits.
• Association types: Includes 76,186 gene-level associations and 18,861 variant-level (SNP) associations.
• Provenance of findings: Aggregates associations reported from large-scale datasets including the UK Biobank and studies employing rare variant–trait association testing methods.
• Ontology indexing: Uses an Exploring Functional Ontology (EFO) tree structure for ontology-based indexing and retrieval of study annotations.
• Annotation detail: Provides detailed gene and SNP information for each reported association.
• Visualization: Integrates visualization tools including Manhattan plots for graphical representation of association results.

Scientific Applications:

• Rare variant exploration: Enables systematic exploration and analysis of published rare variant–trait associations.
• Trait genetics: Supports investigations into the genetic underpinnings of diverse phenotypes and disease mechanisms.
• Heritability and architecture studies: Facilitates research on genetic heritability and the contribution of rare variants to complex trait architecture.

Methodology:

Curates and aggregates association results from 245 publications into a repository of 95,047 associations classified as gene-level or variant-level, indexes entries using the Exploring Functional Ontology (EFO) tree structure, incorporates results from large-scale datasets such as the UK Biobank and studies using rare variant–trait association testing methods, and provides integrated Manhattan plot visualizations and gene/SNP annotations.