Read domain XML 1.0 metadata format

The SRA XML 1.0 metadata format HAS BEEN REPLACED by the SRA XML 1.1 metadata in March 2010.

XML Schema XML Schema Document Description
SRA.submission.xsd SRA.submission.pdf A submission contains submission actions to be performed by the archive. For small studies the submission accession number can be quoted in place of study accession number.
SRA.sample.xsd SRA.sample.pdf A sample contains information about the sample upon which the sequencing experiments are based. Samples can be used in any number of sequencing experiments. A study contains information about the sequencing project. Studies can contain any number of sequencing experiments.
SRA.experiment.xsd SRA.experiment.pdf An experiment contains information about the sequencing experiment. Experiments are associated with runs which contain the actual sequencing results. A run contains the sequencing results from sequencing experiments. Each run can contain all or part of the results for a particular experiment. For example, each Illumina Genome Analyzer lane is typically represented by a single run.
SRA.analysis.xsd SRA.analysis.pdf An analysis contains secondary analysis results computed from the primary sequences results.

Latest ENA news

01 Jul 2015: ENA release 124
Release 124 of ENA's assembled/annotated sequences now available

20 Jun 2015: Sample Checklist Updates - June 2015
ENA are planning to update several sample metadata reporting checklists. Some of these changes have been carried out for harmonisation of attributes/fields between various checklist. Other changes were made to allow a standardised missing/null value reporting. All changes will come into effect as of 3rd August 2015.

03 Jun 2015: Changes to read data submission services 1st of October 2015
ENA will make a number of changes to submission services for raw sequence read data on first of October 2015. We continue to track an ever evolving landscape of available and preferred formats and introduce these changes with a view to overall simplification of the submission system to allow us to provide a more efficient service with faster turnaround.