gene	number
BRCA2	6
ATM	5
RB1	4
MSH6	3
APC	2
ATR	2
BLM	2
ERCC4	2
FH	2
MSH2	2
PALB2	2
BRCA1	1
CA4	1
CHEK2	1
DICER1	1
DPYD	1
ERBB4	1
FANCA	1
FANCC	1
FGF3	1
JAK2	1
MUTYH	1
NF1	1
POLD1	1
POLE	1
RAD51D	1
RECQL4	1
SBDS	1
TP53	1
UGT1A1	1
WRN	1