Changes to the Trace Archive at ENA

Changes to the Trace Archive at ENA

30 Jan 2017 - 10:09

We are making some changes to capillary sequencing trace data at ENA (known as the Trace Archive).  The archive is now available in full via FTP at  This is a  mirror of the FTP archive at NCBI and therefore has the same directory structure (based on organism and strain) and file formats. We will update our FTP archive for new and updated files on the first Sunday of every month.

On Monday 20th February, Trace Archive access will be retired from the ENA Browser (including Advanced Search).  After this time, Trace sequences will only be available via FTP.

Where once the Trace Archive was actively growing, in recent years with changes to sequencing technologies it has become an infrequently used resource. These changes allow ENA to focus its interfaces on those aspects of the sequence data archives that are more widely used by the scientific community.

Please contact us at if you require further details and assistance.

Subscribe to the e-mail newsletter
Get a monthly round-up of the hottest news and features from EMBL, straight to your inbox.
Or stay updated with the RSS feed (EMBL-EBI only).