ArrayExpress – functional genomics data

ArrayExpress Archive of Functional Genomics Data stores data from high-throughput functional genomics experiments, and provides these data for reuse to the research community.

Latest News

12 July 2016 - Updated help pages and improved links between related experiments

We have taken your suggestions on board and rewrote most of our help pages, including a simplified welcome page and an interactive 3-minute read on submitting data to ArrayExpress. In addition, we have introduced links to cross-reference related experiments from the same study in the links section of an experiment. Here is an example. We hope you'll get to the information you need more easily!


Information about how to search ArrayExpress, understand search results, how to submit data and FAQ can be found in our Help section.

Find out more about the Functional Genomics group.

Tools and Access

ArrayExpress Bioconductor package: an R package to access ArrayExpress and build data structures.

Programmatic access: query and download data using web services or JSON.

FTP access: data can be downloaded directly from our FTP site.

Related Projects

Discover up and down regulated genes in numerous experimental conditions in the Expression Atlas.

Explore the Experimental Factor Ontology used to support queries and annotation of ArrayExpress data.