PPM1A protein phosphatase binds phosphorylated SMAD2 and SMAD3 in the nucleus.
Wrighton, KH, Shi, Y, Liang, YY, Brunicardi, FC, Duan, X, Feng, XH, Chen, YG, Su, Y, Lin, X, Hu, M, Meng, A, Wang, J, Davis, CM, Long, J
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