Release 141 of ENA's assembled/annotated sequences is now available

Release 141 of ENA's assembled/annotated sequences is now available

8 Oct 2019 - 16:36

Release 141 of assembled/annotated sequences from ENA is now available on the EBI public ftp server at

It contains 260,968,673 sequence entries comprising 369,883,136,884 nucleotides. You can see the full release notes at:

ENA captures, preserves and presents the world's nucleotide sequence data. New content is included in ENA on a continuous basis and are distributed daily from our browser and RESTful service. The ENA assembled/annotated sequence release provides a quarterly snapshot of content in this important subset of ENA content.

As announced previously we have now stopped including cross referencing (XREF) information in released flat files.  Due to the periodic release cycle and limitations of the format, the XREF lines contained in flat files could not be up to date. Up to date XREF information can only be available from the XREF API ( and against records in the web browser, with further enhancements to this service with the release of the new ENA browser later this year. These services are updated on a daily basis and will contain the latest XREF information.

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