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"Moreover, USP10 is mainly localized in the cytosol, where its function is to maintain the levels of p53 and to counteract MDM2-mediated p53 nuclear export under normal conditions. xref Upon DNA damage, USP10 is phosphorylated by ATM, after which it is re-localized to the nucleus where p53 de-ubiquitination occurs, which is the reverse of the function of residual MDM2, which ubiquitinates p53. xref , xref As USP10 plays an anti-cancer role by regulating the nuclear output and degradation of p53 induced by MDM2, down regulating DUBs may have an impact on cancer and other hypoxia related diseases. xref "