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Protein expression of γ-tubulin, RB1, and phosphorylated RB1 in various tumors. A, immunohistochemical staining of γ-tubulin (γTub), RB1, and Ser(P)780 RB1 (pRB1) in breast, colon, and SCLC tumors. Stainings are denoted as low, intermediate, and strong. B, immunohistochemical staining of phosphorylated Ser780 RB1 in U2OS cells treated with or without λ-phosphatase (phos.).
