NBN and Fanconi anemia: Those genes included NBN, PRKDC, RFWD2, UBE2T, and YWHAZ. While NBN is present in the four DNA damage pathways that are ATR, Fanconi Anemia, ATM, and BARD1, YWHAZ is just present in ATR/ATM; PRKDC in BARD1; and UBE2T in Fanconi Anemia pathway, respectively.