Table 5. Amino acid substitutions identified in mouse-adapted H3N2 influenza viruses.

Virus	PB2		PA					HA							NP			NA
	323	355	86	396	421	609	713	18	144	160	183	209	262	522	34	189	384	331	369	463
SW_293	F	R	M	E	V	K	Y	K	A	N	T	F	N	E	D	M	G	S	T	D
D_P9_C1	L	R	M	E	V	K	Y	K	T	N	A	S	T	D	D	M	G	S	M	D
D_P11_C2	L	R	I	E	V	R	H	K	T	N	A	S	T	E	D	M	R	S	A	N
D_P13_C1	L	K	I	E	V	R	H	K	T	N	A	S	T	E	D	I	R	S	K	D
B_P8_C2	L	R	I	E	F	R	H	Q	T	D	A	S	T	E	N	M	G	R	T	D
B_P9_C2	L	R	I	K	F	R	H	Q	T	D	A	S	T	E	N	M	G	R	T	D