gene	number
BRCA2	7
PALB2	3
RB1	3
BRCA1	2
MSH6	2
SDHB	2
ATM	1
BLM	1
CA1	1
CHEK2	1
DNMT3A	1
DPYD	1
FANCD2	1
JAK2	1
MSH2	1
NBN	1
POLE	1
RAD51D	1
SBDS	1
SH2B3	1
TSC2	1
VHL	1