Pathways preferentially altered in BRCA, OV, GBM, LUAD and HNSC include G2/M DNA Damage Checkpoint // Processing Of DNA Double Strand Break Ends, TP53 Regulates Transcription Of DNA Repair Genes and other signaling networks related to BRCA1/2 and its associated RING Domain 1 (BARD1). This evidence concerns the gene TP53 and glioblastoma.