Table 3.
PRO annotation coverage by GO terms in release 3.0
| Ontology | OBO Relation | # Terms* | Example | |
| GO Molecular Function | has_function | 295 | PRO:000000650 smad 5 isoform 1 phosphorylated 1 | GO:0046332 SMAD binding |
| NOT has_function | 55 | PRO:000000478 smad 5 isoform 2 | GO:0046332 SMAD binding | |
| GO Cellular Component Complex | part_of | 62 | PRO:000000178 RING-box protein 2 isoform 1 | GO:0000151 ubiquitin ligase complex |
| NOT part_of | 5 | PRO:000000179 RING-box protein 2 isoform 2 | GO:0000151 ubiquitin ligase complex | |
| GO Cellular Component | located_in | 240 | PRO:000000457 noggin isoform 1 cleaved 1 | GO:0005615 extracellular space |
| GO Biological Process | participates_in | 274 | PRO:000000086 chordin isoform 1 | GO:0001501 skeletal development |
| PSI-MOD | has_modification | 172 | PRO:000000650 smad 2 isoform 1 phosphorylated 1 | MOD:00046 O-phospho- L-serine |
| SO | has_agent | 305 | TGF-beta receptor type-1 sequence variant 11 | SO:1000097 mutation causing amino acid deletion |
* Number of PRO terms under the umbrella of the corresponding ontology.