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| PR:P08621 | U1 small nuclear ribonucleoprotein 70 kDa (human) | | |  | | |
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| PR:P08621-4 | U1 small nuclear ribonucleoprotein 70 kDa isoform h4 (human) | | |  | | |
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    |
| PR:P08621 | U1 small nuclear ribonucleoprotein 70 kDa (human) | | |  | | |
 |  |  |  |  |  |
    |
| PR:P08621-4 | U1 small nuclear ribonucleoprotein 70 kDa isoform h4 (human) | | |  | | |