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| PR:Q9BT78-1 | COP9 signalosome complex subunit 4 isoform 1 (human) | | |  | | |
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| PR:O88544-1 | COP9 signalosome complex subunit 4 isoform 1 (mouse) | | |  | | |
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| PR:Q68FS2-1 | COP9 signalosome complex subunit 4 isoform 1 (rat) | | |  | | |
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| PR:Q6P0H6-1 | COP9 signalosome complex subunit 4 isoform 1 (zebrafish) | | |  | | |