P53-binding protein 1 (53BP1) plays a critical role in tumor suppression and is a putative substrate of ATM kinase. Upon DNA damage, it is phosphorylated and relocalizes to the presumptive sites of damage, specifically, double-strand breaks. This also suggests a role in DNA repair, maintaining genomic stability. Tumor protein p53 binding protein 1 binds to the central domain of p53 required for site-specific DNA binding thus inhibiting the ability of p53 to bind DNA. TP53BP1 also functions as a checkpoint protein with properties of a DNA double-strand break sensor. It is a putative substrate of ATM kinase and is phosphorylated in response to DNA damage and localizes to sites of double-strand breaks.
TP53BP1 antibody can be used in ELISA, and immunohistochemistry starting at 5 μg/mL.
PBS, pH 7.2, no preservatives added.
Aliquot and store at -20°C or below. Avoid multiple freeze-thaw cycles.