gene number BRCA2 47 ATM 18 RB1 13 BRCA1 10 TP53 10 FANCA 9 APC 8 ATR 8 BRIP1 7 FANCC 7 BLM 6 MSH2 6 MUTYH 6 NF1 6 MSH6 5 PALB2 5 CYLD 4 NBN 4 POLE 4 RAD50 4 RAD51D 4 SDHA 4 CHEK2 3 ERCC4 3 PMS2 3 SDHB 3 CDKN2A 2 DICER1 2 DNMT3A 2 EGFR 2 ERCC2 2 FANCE 2 FANCG 2 FH 2 MET 2 PMS1 2 PRKAR1A 2 PTCH1 2 RAD51C 2 RET 2 SDHD 2 SF3B1 2 TSC2 2 WRN 2 ALK 1 AR 1 ASXL1 1 ATP7B 1 BAP1 1 BRAF 1 BUB1B 1 CBL 1 CDKN1B 1 CTSD 1 ERBB4 1 EXT2 1 FGF3 1 G6PC 1 GNAS 1 IDH1 1 IDH2 1 ITGA2B 1 JAK2 1 JAK3 1 MLH1 1 MRE11A 1 NTRK1 1 NUP93 1 PAH 1 PARK2 1 PMM2 1 POLK 1 PTEN 1 PTPN11 1 RAD51 1 RAD54L 1 RAF1 1 RECQL 1 SBDS 1 TTR 1 UGT1A1 1 VHL 1 WT1 1