Table 3. Specific amino acid sequence analysis of internal genes

Isolates	PB2				PB1		PA	M1		M2
	E627K	D701N	G309D	T339K	H436Y	PB1-F2 deletion	A515T	N30D	T215A	L26P	V27A	S31N
A/wild bird/Korea/KNU12-1/2012(H11N3)	E	D	D	K	Y	No	T	D	A	L	V	S
A/wild bird/Korea/KNU14-11/2014(H11N3)	E	D	D	K	Y	No	T	D	A	L	V	S
A/wild bird/Korea/KNU16-34/2016(H11N9)	E	D	D	K	Y	No	T	D	A	L	V	S
A/mallard/Korea/KNU17-7/2017(H11N9)	E	D	D	K	Y	No	T	D	A	L	V	S
A/mallard/Korea/KNU17-9/2017(H11N9)	E	D	D	K	Y	No	T	D	A	L	V	S
A/bean goose/Korea/KNU18-88/2018(H11N9)	E	D	D	K	Y	No	T	D	A	L	V	S