| 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 |