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

18 May 2020 - New FTP upload server for submitters
We would like to notify our submitters that there is a new FTP server to be used from now on. This change only involves the name of the server; all other steps will remain the same: FTP upload instructions. The old FTP address will be deactivated on June 1st 2020. We hope this change will improve performance of the upload and apologise for any inconvenience.


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

Annotare: web-based submission tool for ArrayExpress.

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.