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| PR:000000038 | BMP receptor-regulated SMAD family member protein | | |  | | |
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| PR:000026724 | SMAD family member 1 isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:000026724 | SMAD family member 1 isoform 1 phosphorylated 1 (mouse) | | |  | | |
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| PR:000026724 | SMAD family member 1 isoform 1 phosphorylated 1 (mouse) | | |  | | |