The protein encoded by this gene belongs to the PI3/PI4-kinase family. This protein is an important cell cycle checkpoint kinase that phosphorylates; thus, it functions as a regulator of a wide variety of downstream proteins, including tumor suppressor proteins p53 and BRCA1, checkpoint kinase CHK2, checkpoint proteins RAD17 and RAD9, and DNA repair protein NBS1. This protein and the closely related kinase ATR are thought to be master controllers of cell cycle checkpoint signaling pathways that are required for cell response to DNA damage and for genome stability.

Western

Western blot analysis of Phospho-ATM (Ser1981) in (1) HEK293 lysates; (2) HEK293 lysates treated with Doxorubicin using Phospho-ATM (Ser1981) antibody.

Immunohistochemistry

Immunohistochemistry analysis of paraffin-embedded Human liver using Phospho-ATM (S1981) antibody.High-pressure and temperature Sodium Citrate pH 6.0 was used for antigen retrieval.