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Background
Involved in the negative regulation of p53 expression (PubMed: 23242139). Required for the relief of p53-dependent checkpoint mediated cell cycle arrest. Binds to and dephosphorylates ‘Ser-15’ of TP53 and ‘Ser-345’ of CHEK1 which contributes to the functional inactivation of these proteins (PubMed: 15870257, PubMed: 16311512). Mediates MAPK14 dephosphorylation and inactivation (PubMed: 21283629). Is also an important regulator of global heterochromatin silencing and critical in maintaining genome integrity (By similarity).
