Supplementary Information for Publication Huaiyu Mi, Jody Vandergriff, Michael Campbell, Apurva Narechania, William Majoros, Suzanna Lewis, Paul D. Thomas, Michael Ashburner. 2003. Assessment of genome-wide protein function classification for Drosophila melanogaster. Genome Res., 13: 2118-2128. PANTHER/X to GO Mapping of PANTHER/X ontology biological processes and molecular functions to GO. GO to PANTHER/X Mapping of GO biological processes and molecular functions to the PANTHER/X ontology. PANTHER classifications of FlyBase sequences PANTHER/LIB 3.0 classifications of FlyBase sequences (Release 2) analyzed for the paper. The classification of the current FlyBase sequences (Release 3) can be found at the PANTHER website.