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We have reviewed the COP1 mediated tumor suppressor protein p53 pathway and its oncogenic role. COP1 is a negative regulator of p53 and acts as a pivotal controller of p53-Akt death-live switch (Protein kinase B). In presence of p53, COP1 is overexpressed in breast, ovarian, gastric cancers, even without MDM2 (Mouse double minute-2) amplification. Following DNA damage, COP1 is phosphorylated instantly...
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