DNA-activated serine/threonine protein kinase (DNA-PK) is a nuclear protein kinase that is involved in DNA nonhomologous end joining (NHEJ) required for double- strand brake repair and V(D)J recombination.
DNA-PK is composed of a large catalytic subunit of ~470 kD (DNA-PKcs) and a DNA binding heterodimer of approximately 70- and 80-kD subunits called Ku.
(1-2).
Autophosphorylation of DNA-PK correlates with loss of protein kinase activity and dissociation of the DNA-PKcs-Ku complex.
DNA-PK phosphorylates Hsp90, p53 and c-Jun (3-4).
Applications:Suitable for use in Immunohistochemistry, Immunocytochemistry.