TABLE 2.

Amino acid differences between two H5N1 swine influenza viruses and the duck virus DK/ZJ/00

Protein	Amino acid position	Amino acid in virusa
		DK/ZJ/00	SW/FJ/01	SW/FJ/03
PB2	51	V	M	M
	92	P	S	S
	164	L	M	M
	562	I	I	S
	679	L	P	P
	725	P	L	L
PB1	456	L	H	H
	486	L	R	R
PA	54	V	I	I
	330	I	V	V
	384	Y	C	C
	459	V	I	I
HA	16	S	G	G
	100	N	S	S
	168	K	K	E
	254	S	A	A
	444	L	I	L
NP	65	S	R	R
	257	T	I	I
	284	V	A	A
NA	34	V	I	I
M2	26	L	S	L
	65	T	T	A
NS1	18	V	I	I
	69	P	L	L
	88	I	M	M
	191-195	EALQR	EALQR
NS2	39-43	KLYRD	KLYRD

^aThe amino acids that are different between the two swine influenza viruses are shown in italics.