software

Annotation Quality Control

The GO Consortium implements a number of automated checks to check the quality of the annotations submitted to the GO database. These checks are detailed on the annotation quality control checks page.

GO Annotation File (GAF) Format 1.0

Annotation data is submitted to the GO Consortium in the form of gene association files, or GAFs. The following document lays out the format specification for GAF 1.0; for the newer GAF 2.0 file syntax, please see the GAF 2.0 file format guide.

More general information on annotation can be found in the GO annotation guide.

Downloads

In these pages you will find the gene association files submitted by members of the Gene Ontology Consortium (Annotations), the various versions of Gene Ontology available for download (Ontology), and mappings from the GO to a number of external vocabularies also built for genome annotation (Mappings).

Use and License

Gene Ontology Consortium data and data products are licensed under the Creative Commons Attribution 4.0 Unported License. A human-readable version and explanation is available at the Creative Commons website. For information about how to properly credit data use, please review the Creative Commons FAQ or contact the GO Helpdesk.

Download Mappings

Mappings of External Classification Systems to GO

The Gene Ontology is not the only attempt to build structured controlled vocabularies for genome annotation. To aid users, the GO Consortium provides mappings of its terms to those in a number of external vocabularies.