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Array Express
Search ArrayExpress and BioStudies for datasets and data packages supporting scientific studies.
About Array Express
Array Express is a web-based collection from EMBL-EBI for functional genomics data. It stores data from high-throughput functional genomics experiments and makes it available for reuse by the research community. Each study typically includes metadata such as detailed sample annotations and protocols, along with processed data and raw data.
Raw sequence reads from high-throughput sequencing studies are brokered to the European Nucleotide Archive (ENA), and the site links to ENA for downloading them. Researchers can submit experiments through the Annotare submission tool. The site is part of the BioStudies service, which its homepage describes as one package for all the data supporting a study.
Key features
- Stores data from high-throughput functional genomics experiments
- Studies include sample annotations, protocols, processed data and raw data
- Links to raw sequence reads held in the European Nucleotide Archive
- Annotare web-based tool for submitting experiments
- Bioconductor R package for accessing ArrayExpress and building data structures
- FTP and Aspera access for downloading data directly
Best for: Researchers in functional genomics who need existing study data for reuse or want to submit their own experiments.
Good for
- Provides study data for reuse by the research community
- Studies include detailed sample annotations and protocols
- Connects sequencing studies to raw reads in the European Nucleotide Archive
Watch out for
- Raw sequence reads are downloaded from ENA rather than directly from this site
- Focused on functional genomics data from high-throughput experiments
Array Express at a glance
- Category
- Research & Data › Open Data & Datasets
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
Array Express alternatives
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BALSA hosts analyzed neuroimaging datasets and indexes studies for researchers.
Synapse supports scientific collaborations centered on shared biomedical datasets and research projects.
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Array Express FAQ
Where are raw sequence reads from sequencing studies stored?
Raw sequence reads from high-throughput sequencing studies are brokered to the European Nucleotide Archive (ENA). The site provides links to download the reads from ENA.
How can I submit an experiment?
Data can be submitted through the dedicated Annotare submission tool. The site also provides a submission guide with more information.
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