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| PR:P26129 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/1957 H2N2)) | | |  | | |
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| PR:P67866 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/17/1957 H2N2)) | | |  | | |
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| PR:P67867 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/47/1957 H2N2)) | | |  | | |
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    |
| PR:P26129 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/1957 H2N2)) | | |  | | |
 |  |  |  |  |  |  |
    |
| PR:P67866 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/17/1957 H2N2)) | | |  | | |
 |  |  |  |  |  |  |
    |
| PR:P67867 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/47/1957 H2N2)) | | |  | | |
 |  |  |  |  |
    |
| PR:P26129 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/1957 H2N2)) | | |  | | |
 |  |  |  |  |  |
    |
| PR:P67866 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/17/1957 H2N2)) | | |  | | |
 |  |  |  |  |  |
    |
| PR:P67867 | matrix protein 2 (Influenza A virus (strain A/Leningrad/134/47/1957 H2N2)) | | |  | | |