| Protein | Synonyms | Taxonomy |
|---|
| ORF6 protein | Accessory protein 6; Non-structural protein 6; ns6; Protein X3 | Severe acute respiratory syndrome-related coronavirus |
| ORF3b protein | Accessory protein 3b; Non-structural protein 3b; ns3b; Protein X2 | Severe acute respiratory syndrome-related coronavirus |
| ORF3a protein | Accessory protein 3a; Protein 3a; Protein U274; Protein X1 | Severe acute respiratory syndrome-related coronavirus |
| ORF7a protein | Accessory protein 7a; Protein U122; Protein X4 | Severe acute respiratory syndrome-related coronavirus |