Update publication information. To understand how ADAR1 controls genome stability, affinity purification and mass spectrometry were employed to identify the interactomes of ADAR1 with cellular extracts from HeLa cells stably expressing FLAG-ADAR1.Mass spectrometry analysis of FLAG-ADAR1 associated proteins. The differential protein bands of the immunoprecipitates from cellular extracts of HeLa cells were retrieved from silver stained SDS-PAGE, digested with trypsin and analyzed by mass spectrometry.