Functional Information from SwissProt/UniProt
| site_id | SWS_FT_FI1 |
| Number of Residues | 3 |
| Details | BINDING: |
| Chain | Residue | Details |
| B | ASP110 | |
| B | ASP185 | |
| B | ASP186 | |
| site_id | SWS_FT_FI2 |
| Number of Residues | 2 |
| Details | SITE: Essential for RT p66/p51 heterodimerization |
| Chain | Residue | Details |
| B | TRP401 | |
| B | TRP414 | |
| A | ASN498 | |
| A | ASP549 | |
| site_id | SWS_FT_FI3 |
| Number of Residues | 2 |
| Details | SITE: Essential for RT p66/p51 heterodimerization |
| Chain | Residue | Details |
| A | TRP401 | |
| A | TRP414 | |
| site_id | SWS_FT_FI4 |
| Number of Residues | 1 |
| Details | SITE: Cleavage; by viral protease; partial |
| Chain | Residue | Details |
| A | PHE440 | |
