| Protein | Synonyms | Taxonomy |
|---|
| Nucleoprotein | Nucleocapsid protein; Protein N | Influenza A virus (A/Puerto Rico/8/1934(H1N1)) |
| RNA-directed RNA polymerase catalytic subunit | EC 2.7.7.48; Polymerase basic protein 1; PB1; RNA-directed RNA polymerase subunit P1 | Influenza A virus (A/Puerto Rico/8/1934(H1N1)) |
| Polymerase acidic protein | EC 3.1.-.-; RNA-directed RNA polymerase subunit P2 | Influenza A virus (A/Puerto Rico/8/1934(H1N1)) |
| Polymerase basic protein 2 | RNA-directed RNA polymerase subunit P3 | Influenza A virus (A/Puerto Rico/8/1934(H1N1)) |