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[go-friends] S. cerevisiae GO annotations file

Rama Balakrishnan ramab at
Thu Mar 6 12:13:51 PST 2014

Hi All,

The Saccharomyces cerevisiae GAF file (gene_associations_file) is changing.  Up until now the S. cerevisiae Gene Ontology (GO) annotations have been specified as taxon:4932.  We are changing this to match the NCBI taxonomy ID that is used for the reference genome sequence at GenBank and protein entries at UniProt.  Starting March 8th, 2014, the GAF file will use taxon:559292 in column 13.  This change better represents the genome that is being listed.  The taxon ID 4932 is for all of Saccharomyces cerevisiae, and the taxon ID 559292 is specific to the strain, S288C, used for the S. cerevisiae reference genome sequence. 

The GAF can be downloaded from SGD's Downloads site:

Link to the NCBI Taxonomy Browser for S288C:


Please contact us if you have any questions (

SGD Project
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