Symbol # of mutant samples Percentage of the mutant samples
PIK3CA 263 33.89%
TP53 258 33.25%
GATA3 81 10.44%
MLL3 61 7.86%
CDH1 55 7.09%
MAP2K4 32 4.12%
PTEN 29 3.74%
SYNE1 28 3.61%
RUNX1 25 3.22%
PIK3R1 21 2.71%
AKT1 19 2.45%
DST 19 2.45%
NF1 19 2.45%
ATM 17 2.19%
ARID1A 16 2.06%
AKAP9 14 1.80%
CSMD3 14 1.80%
PTPRD 14 1.80%
RB1 14 1.80%
SF3B1 14 1.80%
ZNF384 14 1.80%
ERBB2 13 1.68%
MLL2 13 1.68%
MTOR 12 1.55%
ERBB3 11 1.42%
MAGI1 11 1.42%
MYB 11 1.42%
SETD2 11 1.42%
TLR4 11 1.42%
DCC 10 1.29%
KDM6A 10 1.29%
PRKDC 10 1.29%
TAF1 10 1.29%
TPR 10 1.29%
USP9X 10 1.29%
Table 5: Ion comprehensive cancer genes frequently mutated in TCGA breast cancer samples