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| PR:P09012 | U1 small nuclear ribonucleoprotein A (human) | | |  | | |
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| PR:000049306 | U1 small nuclear ribonucleoprotein A, initiator methionine removed form (human) | | |  | | |
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| |
 |  |  |  |  |
    |
| PR:P09012 | U1 small nuclear ribonucleoprotein A (human) | | |  | | |
 |  |  |  |  |  |
    |
| PR:000049306 | U1 small nuclear ribonucleoprotein A, initiator methionine removed form (human) | | |  | | |