IndraLab

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USP25 activates USP25. 3 / 3
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"Interestingly, we also noticed that co-expression of MEK1 CA and ERK resulted in the band shift of both Nanog and USP21 (XREF_SUPPLEMENTARY), which is possibly caused by the phosphorylation of Nanog and USP21 by the activated ERK."

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"We then corroborated the effects of USP21 on the identified substrates by performing additional electroporation experiments using mouse skeletal muscle and confirmed that the forced expression of USP21 increased DNA‐PKcs and ACLY levels, supporting the ability of USP21 to stabilize the proteins (P < 0.05; Figure 4E, upper)."

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"Importantly, GST pull-down assay showed that phosphorylation of USP21 by activated p38 significantly enhanced the binding of USP21 to the purified STING (XREF_FIG)."