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Antibody detects endogenous levels of BRSK2 only when phosphorylated at Thr260.
BRSK2 is a brain-selective serine/threonine kinase 2 that is mainly expressed in the brain, with weaker expression in testis and pancreas. BRSK2 expressed in insect cells specifically phosphorylates WEE1A, CDC25C and CDC25B in an in vitro assay. DNA damage induced by ultraviolet (UV) irradiation or methyl methane sulfonate, but not by ionizing radiation, enhanced endogenous BRSK2 kinase activity in a caffeine-sensitive manner and caused translocation of BRSK2 from the cytoplasm to the nucleus. Overexpression of BRSK2 in HeLa cells results in increased phosphorylation of CDC25C. DNA damage induced by ultraviolet (UV) irradiation or methyl methane sulfonate, but not by ionizing radiation, enhances endogenous BRSK2 kinase activity in a caffeine-sensitive manner and causes translocation of BRSK2 from the cytoplasm to the nucleus. Overexpression of BRSK2 induces G2/M arrest in HeLa cells. Small interfering RNA against BRSK2 partly abrogates UV-induced G2/M arrest. BRSK2 may act as a checkpoint kinase upon DNA damage induced by UV irradiation or methyl methane sulfonate.
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Protein Aliases: BR serine/threonine-protein kinase 2; Brain-selective kinase 2; Brain-specific serine/threonine-protein kinase 2; protein kinase SAD1B; SAD1B; Serine/threonine-protein kinase 29; Serine/threonine-protein kinase BRSK2; Serine/threonine-protein kinase SAD-A; testicular tissue protein Li 30
Gene Aliases: 4833424K13Rik; BRSK2; C11orf7; HUSSY-12; Kiaa4256; PEN11B; SAD-A; SAD1; SADA; STK29
UniProt ID: (Human) Q8IWQ3, (Mouse) Q69Z98
Entrez Gene ID: (Human) 9024, (Mouse) 75770
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