Phylogenetic Analysis of Hemagglutinin Genes of H9N2 Avian Influenza Viruses Isolated from Chickens in Shandong, China, between 1998 and 2013

Table 3

Amino acid sequence at the cleavage site and receptor-binding site of HA.

Strain abbreviation	Left edge	Receptor-binding sites (RBS)							Right edge	Cleavage site
SD/6/96	224–229	98	153	155	183	190	194	195	134–138
	NGQQGR	P	W	T	N	A	L	Y	GTSKA	PARSSRGLF
SD/WF/98	+	+	+	+	+	T	+	+	+	+
SD/B1/98	+	+	+	+	+	T	+	+	+	+
SD/JN/99	NGLQGR	+	+	+	+	+	+	+	+	PSRSSRGLF
SD/LW/99	+	+	+	+	+	V	+	+	+	+
SD/241/01	+	+	+	+	+	V	+	+	+	+
SD/3/01	NGMQGR	+	+	+	+	V	+	+	+	+
SD/244/02	+	+	+	+	+	+	+	+	+	+
SD/BZ02/02	+	+	+	+	+	T	+	+	+	+
SD/2/03	+	+	+	+	+	+	+	+	+	+
SD/S2/05	NGLQGR	+	+	+	+	+	+	+	+	+
SD/JN5/05	+	+	+	+	+	V	+	+	+	+
SD/JN4/05	+	+	+	+	+	V	+	+	+	+
SD/ZC820/06	+	+	+	+	+	+	+	+	+	+
SD/YB06/06	+	+	+	+	+	T	+	+	+	+
SD/LX414/07	+	+	+	+	+	V	+	+	+	+
SD/LX331/07	+	+	+	+	+	+	+	+	+	+
SD/LX327/07	+	+	+	+	+	T	+	+	+	+
SD/SD0014/08	+	+	+	+	+	T	+	+	+	+
SD/1/08	+	+	+	+	+	V	+	+	+	+
SD/LX316/08	+	+	+	+	+	V	+	+	+	+
SD/BD/09	+	+	+	+	+	V	+	+	+	+
SD/SG2/09	+	+	+	+	+	T	+	+	+	+
SD/SG1/09	+	+	+	+	+	T	+	+	+	+
SD/YT1/10	+	+	+	+	+	+	+	+	+	+
SD/YT2/10	+	+	+	+	+	+	+	+	+	+
SD/YT4/10	+	+	+	+	+	+	+	+	+	+
SD/BD1/11	+	+	+	+	+	V	+	+	+	+
SD/YT15/11	+	+	+	+	+	+	+	+	+	+
SD/YT1/11	NGLMGR	+	+	+	+	V	+	+	+	+
SD/YS/12	NGLQGR	+	+	+	+	V	+	+	+	+
SD/WF4/12	NGLMGR	+	+	+	+	V	+	+	+	+
SD/P6/12	+	+	+	+	+	V	+	+	+	+
SD/HK1/13	+	+	+	+	+	V	+	+	+	+
SD/LC1/13	+	+	+	+	+	+	+	+	+	+
SD/LC2/13	+	+	+	+	+	T	+	+	+	+

Note. Plus signs (+) indicate identical site.