Ontology Downloads

Ontology File Downloads

Terms, definitions and ontology structure.

Current ontology statistics:

as of May 13, 2008 at 6:00 Pacific time:
25082 terms, 98.1% with definitions.

14736 biological_process
2084 cellular_component
8262 molecular_function

There are 1160 obsolete terms not included in the above statistics.

Download GO ontology files
Format	Download	Updated
OBO v1.2 format format guide	OBO v1.2	Every 30 minutes
OBO v1.0 format format guide Monthly releases also available by FTP	OBO v1.0	Daily
GO format format guide Monthly releases also available by FTP Note that this format is deprecated.	function process component defs	Weekly
mySQL format format guide	see the go_`YYYYMM`-termdb.data.gz and go_`YYYYMM`-termdb.tables.tar.gz file in the GO Database archives	Daily
RDF-XML format format guide	rdf-xml.gz rdf.dtd.gz	Daily
OBO-XML format format guide	obo-xml.gz obo-xml.dtd.gz	Daily
OWL format format guide	owl.gz	Daily
GO Slims See the GO Slim Guide for details on everything GO slim related		Daily

An archive of the ontology files (in both OBO and GO format) from the first of each month is available from the ontology-archive directory of the FTP site. See the GO FTP site access instructions.