Table 2.

Summary of driver mutation types

Driver mutation	Total (%)	Type	N (%)
KRAS	129 (27)	G12C	57 (44)
		G12V	22 (17)
		G12D	15 (12)
		G12A	14 (11)
		G12F	2 (2)
		G12R	1 (1)
		G12S	1 (1)
		G13C	8 (6)
		G13D	1 (1)
		Q61H	4 (3)
		Q61L	2 (2)
		Q61R	1 (1)
		A146T	1 (1)
EGFR	86 (18)	L858R	42 (49)
		Exon 19 del.	39 (45)
		L861Q	2 (2)
		S768I	2 (2)
		G719A	1 (1)
BRAF	8 (2)	V600E	6 (75)
		D594G	2 (25)
PIK3CA*	8 (2)	E542K	4 (50)
		C420K	1 (13)
		E545K	1 (13)
		H1047R	1 (13)
		R88Q	1 (13)
NRAS	4 (1)	Q61L	2 (50)
		Q61K	1 (25)
		G31R	1 (25)
AKT1	1 (0.2)	E17K	1 (100)

^*Among PIK3CA mutated tumors, 2 coexisted with KRAS mutation and 2 with EGFR mutation.

EGFR, epidermal growth factor receptor