Secondary accession number


Secondary accession number
In ArrayExpress: An experiment can have a secondary accession number to show a link to another experiment or to an external data source. For example: if the data provided is a re-analysis of another dataset, the accession number of the original experiment will be listed as a secondary accession number; data exported from GEO will have the GEO series or data set identifier as the secondary accession number; HTS experiments will have a link to the European Nucleotide Archive (ENA) or European Genome-phenome Archive (EGA) where the raw data files are kept.