Table 2.

Amino acid differences between the proteins of swine and chicken strains.

HA classification		A/Indonesia/6/05-like		HA classification		Clade 2.1.3
Virus		Ck UT6016	Sw UT6003	Virus		Ck UT6044	Sw UT6005	Sw UT6010
MLD50 (log10EID50)a		3.8	>6.1	MLD50 (log10EID50)		2.2	>6.1	3.5
Protein position				Protein position
PB2	526	R	K	PB2	13c	Q	H	Q
PA	231	T	A		150d	G	V	G
	618	A	T		184	T	A	A
	684	G	E		317	L	M	M
HA1b	36	A	T		365	I	M	M
	133	A	S		678	G	D	D
NP	50	S	N	PB1-F2	4	G	E	E
	318	S	P		47	S	N	N
NA	266	S	G	PA	367	R	K	K
NS1	27	M	L		397	K	E	E
	74	G	D		547	D	N	N
	180	F	L	HA1	156	A	T	T
				NA	17	I	V	V
					41	G	R	G
					197	K	R	R
				M2	23	S	N	N
					29	A	V	V
					68	V	I	I
				NS1	124	K	I	I
					212	N	S	S
				NS2	60	I	V	V
					92	N	N	T

^aThe same data as shown in Table 1.

^bH5 numbering

^cGln at 13 position of the PB2 protein is widely conserved among H1N1, H3N2, and H5N1 viruses.

^dGly-to-Val substitution at 150 position of the PB2 protein is a novel mutation among H1N1, H3N2 and H5N1 viruses.