Catalytic activity:ATP + a protein = ADP + a phosphoprotein. ,Function:May play a role as a corepressor for homeodomain transcription factors. Phosphorylates DAXX in response to stress , and mediates its translocation from the nucleus to the cytoplasm. May be involved in malignant squamous cell tumor formation. ,PTM:Autophosphorylated. Phosphorylated and activated by JNK1. ,similarity:Belongs to the protein kinase superfamily. ,similarity:Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. HIPK subfamily. ,similarity:Contains 1 protein kinase domain. ,subcellular location:Predominantly nuclear. ,subunit:Interacts with Nkx1-2 and Nkx2-5 (By similarity) . Interacts with DAXX and TP53. ,tissue specificity:Ubiquitously expressed with highest levels in skeletal muscle and heart. Overexpressed in breast cancer cell lines. ,
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