BRCA2 and Fanconi anemia: So far, up to 20 Fanconi Anaemia (FA) genes have been identified (FANCA, B, C, D1 (BRCA2), D2, E, F, G (XRCC9), I, J (BRIP1), L, M, N (PALB2), O (RAD51C), P (SLX4), Q (ERRC4), R (RAD51), S (BRCA1), T (UBE2T) and U (XRCC2))13.