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| PR:P24928 | DNA-directed RNA polymerase II subunit RPB1 (human) | | |  | | |
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| PR:000048850 | DNA-directed RNA polymerase II subunit RPB1 phosphoserine(3+) form (human) | | |  | | |
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    |
| PR:P24928 | DNA-directed RNA polymerase II subunit RPB1 (human) | | |  | | |
 |  |  |  |  |  |
    |
| PR:000048850 | DNA-directed RNA polymerase II subunit RPB1 phosphoserine(3+) form (human) | | |  | | |