Background:  Serine/threonine protein kinase which activates checkpoint signaling upon genotoxic stresses such as ionizing radiation (IR), ultraviolet light (UV), or DNA replication stalling, thereby acting as a DNA damage sensor. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates BRCA1, CHEK1, MCM2, RAD17, RPA2, SMC1 and p53/TP53, which collectively inhibit DNA replication and mitosis and promote DNA repair, recombination and apoptosis. Phosphorylates 'Ser-139' of histone variant H2AX/H2AFX at sites of DNA damage, thereby regulating DNA damage response mechanism. Required for FANCD2 ubiquitination. Critical for maintenance of fragile site stability and efficient regulation of centrosome duplication.

Description: Rabbit polyclonal to ATR

Immunogen: KLH conjugated synthetic peptide derived from ATR

Specificity:  ·Reacts with Human, Mouse, Rabbit, Pig, Dog, Cow and Rat.

·Isotype: IgG

Application:  ·Western blotting: 1/100-500. Predicted Mol wt: 309 kDa;

·Immunohistochemistry (Paraffin/frozen tissue section): 1/100-500;

·Immunocytochemistry: 1/100-200;

·ELISA: 1/500;

· Optimal working dilutions must be determined by the end user.