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| PR:Q09720 | probable proteasome subunit beta type-4 (Schizosaccharomyces pombe 972h-) | | |  | | |
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| PR:Q55DY7 | proteasome subunit beta type-2 (Dictyostelium discoideum) | | |  | | |
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| PR:P49721 | proteasome subunit beta type-2 (human) | | |  | | |
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| PR:000067325 | proteasome subunit beta type-2 cysteinylated 1 (human) | | |  | | |
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| PR:000083265 | proteasome subunit beta type-2 cysteinylated 2 (human) | | |  | | |
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| PR:000071275 | proteasome subunit beta type-2 deaminated 1 (human) | | |  | | |
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| PR:000078072 | proteasome subunit beta type-2 deaminated 2 (human) | | |  | | |
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| PR:P49721-1 | proteasome subunit beta type-2 isoform 1 (human) | | |  | | |
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| PR:000067438 | proteasome subunit beta type-2 methylated 1 (human) | | |  | | |
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| PR:Q9R1P3 | proteasome subunit beta type-2 (mouse) | | |  | | |
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| PR:Q9R1P3-1 | proteasome subunit beta type-2 isoform 1 (mouse) | | |  | | |
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| PR:P40307 | proteasome subunit beta type-2 (rat) | | |  | | |
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| PR:P91477 | proteasome subunit beta type-2 (worm) | | |  | | |
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| PR:P49721-1 | proteasome subunit beta type-2 isoform 1 (human) | | |  | | |
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| PR:Q9R1P3-1 | proteasome subunit beta type-2 isoform 1 (mouse) | | |  | | |
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| PR:O24633 | proteasome subunit beta type-2-B (Arabidopsis thaliana) | | |  | | |
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| PR:O24633-1 | proteasome subunit beta type-2-B isoform 1 (Arabidopsis thaliana) | | |  | | |
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| PR:P22141 | proteasome subunit beta type-4 (yeast) | | |  | | |