| GO evidence code | Description by Gene Ontoloty |
| IDA | Inferred from Direct Assay |
| IMP | Inferred from Mutant Phenotype |
| IGI | Inferred from Genetic Interaction |
| IPI | Inferred from Physical Interaction |
| IEP | Inferred from Expression Pattern |
| TAS | Traceable Author Statement |
| RCA | Inferred from Reviewed Computational Analysis |
| IGC | Inferred from Genomic Context |
| ISS | Inferred from Sequence or Structural Similarity |
| NAS | Non-traceable Author Statement |
| IEA | Inferred from Electronic Annotation |
| IC | Inferred by Curator |
| Evidence code | Data set description |
| CE-CC | Co-citation of worm gene |
| CE-CX | Co-expression among worm genes |
| CE-GT | Worm genetic interactions |
| CE-LC | Literature curated worm protein physical interactions |
| CE-YH | High-throughput yeast 2-hybrid assays among worm genes |
| DM-PI | Fly protein physical interactions |
| HS-CC | Co-citation of human genes |
| HS-CX | Co-expression among human genes |
| HS-DC | Co-occurrence of domains among human proteins |
| HS-GN | Gene neighbourhoods of bacterial and archaeal orthologs of human genes |
| HS-LC | Literature curated human protein physical interactions |
| HS-MS | human protein complexes from affinity purification/mass spectrometry |
| HS-PG | Co-inheritance of bacterial and archaeal orthologs of human genes |
| HS-YH | High-throughput yeast 2-hybrid assays among human genes |
| SC-CC | Co-citation of yeast genes |
| SC-CX | Co-expression among yeast genes |
| SC-GT | Yeast genetic interactions |
| SC-LC | Literature curated yeast protein physical interactions |
| SC-MS | Yeast protein complexes from affinity purification/mass spectrometry |
| SC-TS | Yeast protein interactions inferred from tertiary structures of complexes |
| SC-YH | High-throughput yeast 2-hybrid assays among yeast genes |