Learn to use ArrayExpress, a resource for storage and sharing of gene expression and other microarray data. ArrayExpress provides interfaces that allow users to search for complete datasets, for gene expression profiles, and for differentially expressed genes. Data content can be downloaded in multiple ways. ArrayExpress is one of the core databases of EBI, the European Bioinformatics Institute, and it is a public archive for functional genomics data.

You will learn:

  • to query the archive of ArrayExpress for records of experiments, arrays, and protocols, and to export data
  • to query for expression profiles of genes, and identify groups of genes with similar expression profiles
  • to find conditions under which a gene is differentially expressed, and to find genes differentially expressed under certain conditions


This tutorial is a part of the tutorial group Expression resources. You might find the other tutorials in the group interesting:

Functional Glycomics Gateway: The home for Functional Glycomics research

CleanEx: A Database of Heterogeneous Gene Expression Data Based on A Consistent Gene Nomenclature

Allen Mouse Brain Atlas: Mapped gene expression data in mouse brain

miRBase: microRNA sequences, targets and gene nomenclature

DBTSS: Database of Transcriptional Start Sites

Alternative Splicing and Transcript Diversity (ASTD) database: A bioinformatics resource for alternative splice events and transcripts for human, mouse, and rat

GENSAT: Provides an extensive amount of high quality images of gene expression in the central nervous system of the mouse.

Gene Expression Omnibus (GEO): A gene expression/molecular abundance repository and a curated, online resource for gene expression data


EBI : This category includes all resources maintained at the European Bioinformatics Institute (EBI)

Expression : This category may contain various expression data collections, annotation tools, or repositories of expression data.


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