SMAD2, phosphorylated (Ser118) (Mothers Against Decapentaplegic Homolog 2, Mothers Against DPP Homolog 2, MAD Homolog 2, Mad-related Protein 2, hMAD-2, SMAD Family Member 2, SMAD 2, hSMAD2, JV18-1, MADR2, MADH2)[SMAD2]