Alternative products:Additional isoforms seem to exist ,Catalytic activity:ATP + a protein = ADP + a phosphoprotein. ,developmental stage:Expressed in the developing central nervous system. ,Disease:Overexpressed 1.5-fold in fetal Down syndrome brain. ,enzyme regulation:Inhibited by RANBP9. ,Function:May play a role in a signaling pathway regulating nuclear functions of cell proliferation. Phosphorylates serine , threonine and tyrosine residues in its sequence and in exogenous substrates. ,PTM:Autophosphorylated on tyrosine residues. ,similarity:Belongs to the protein kinase superfamily. CMGC Ser/Thr protein kinase family. MNB/DYRK subfamily. ,similarity:Contains 1 protein kinase domain. ,subunit:Interacts RAD54L2/ARIP4 (By similarity) . Interacts with RANBP9. ,tissue specificity:Ubiquitous. Highest levels in skeletal muscle , testis , fetal lung and fetal kidney. ,
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