OmicsDI
Overview
OmicsDI (Omics Discovery Index) is an integrated resource developed by EMBL-EBI that provides a unified search and discovery platform for omics datasets. It aggregates metadata from multiple public omics repositories, enabling researchers to find and access genomics, proteomics, metabolomics, transcriptomics, and multi-omics datasets through a single interface.
Key Features
- Multi-Repository Search: Unified access to datasets from multiple omics databases
- Cross-Omics Coverage: Genomics, proteomics, metabolomics, transcriptomics, and multi-omics data
- Standardized Metadata: Harmonized dataset descriptions using controlled vocabularies
- Advanced Search: Faceted search across organisms, tissues, diseases, and data types
- Dataset Discovery: Browse and explore related datasets and studies
- API Access: Programmatic access to dataset metadata
- Citation Tracking: Links to publications and citation information
Integrated Repositories
OmicsDI aggregates data from major omics repositories:
Genomics and Transcriptomics
- ArrayExpress
- GEO (Gene Expression Omnibus)
- ENA (European Nucleotide Archive)
- dbGaP
- EGA (European Genome-phenome Archive)
- EVA (European Variation Archive)
- NODE (National Omics Data Encyclopedia)
- LINCS
Proteomics
- PRIDE (Proteomics Identifications Database)
- PeptideAtlas
- MassIVE
- jPOST
- iProX
- Panorama Public
- GPMDB
- PaxDb
- MetaboLights
- Metabolomics Workbench
- GNPS
Models
- BioModels
- FAIRDOMHub
- Physiome Model Repository
- Cell Collective
Other Data Types
- Expression Atlas
- BioStudies (including BioImages and literature records)
- ECRIN MDR (clinical studies)
Data Content
- Dataset identifiers and accession numbers
- Study titles and descriptions
- Organism and tissue information
- Disease and phenotype annotations
- Experimental design details
- Technology and platform information
- Sample sizes and biological replicates
- Publication references
- Data availability and access information
Standardization
- Ontology-based annotations (e.g., EFO, NCBI Taxonomy)
- Unified metadata schema across repositories
- Controlled vocabulary for data types and technologies
- Cross-references between related datasets
Applications
- Data Discovery: Finding relevant omics datasets for research questions
- Multi-Omics Integration: Identifying complementary datasets across omics types
- Meta-Analysis: Discovering comparable datasets for large-scale analyses
- Hypothesis Generation: Exploring related studies and datasets
- Data Reuse: Accessing public omics data for secondary analyses
- Literature Mining: Connecting datasets to publications
Search Capabilities
Faceted Search
- Organism/species
- Tissue and cell type
- Disease and phenotype
- Omics type
- Technology platform
- Publication date
- Submitter institution
Advanced Features
- Free-text search across metadata fields
- Boolean operators and filters
- Related dataset recommendations
- Export and download of search results
API and Programmatic Access
OmicsDI provides:
- RESTful API for dataset queries
- Bulk metadata download
- Integration with computational workflows
This resource has the Information Resource identifier: infores:omicsdi
Access
- Web Interface: https://www.omicsdi.org/
- API Documentation: https://www.omicsdi.org/help/api
- Help and Tutorials: https://www.omicsdi.org/about
Governance
OmicsDI is maintained by the European Bioinformatics Institute (EMBL-EBI) as part of their data integration and discovery services.
For more information, visit https://www.omicsdi.org/ or contact EMBL-EBI at https://www.ebi.ac.uk/