Table 2. Comparison of amino acid mutational sites in twelve glycoproteins of the twenty-two ILTV strains.

ORF	Amino acid sites	Conserved amino acid	LJS09	K317	WG	SA2	A20	Serva	ACC78	CL-9	V1-99	CSW-1	1874C5	USDA	81658	63140	LT Blen	Laryngo	CEO Low	CEO High	CEO TRVX	TCO Low	TCO High	TCO IVAX
gB	44	R			H	H	H		H	H	H	H
gB	71	R	$\boxed{\text{K}}$	$\boxed{\text{K}}$
gB	116	A	V					V
gB	207	F	$\boxed{\mathbf{\text{L}}}$
gB	242	Y										H
gB	348	M													$\dot{\text{T}}$							$\dot{\text{T}}$	$\dot{\text{T}}$	$\dot{\text{T}}$
gB	496	R														$\dot{\text{H}}$
gB	551	M			V	V	V		V	V
gB	644	I			$\text{T}$	$\text{T}$	$\text{T}$		$\text{T}$	$\text{T}$	$\text{T}$	$\text{T}$	$\text{T}$	$\text{T}$		$\text{T}$
gB	707	F			$\boxed{\mathbf{\text{S}}}$
gB	799	P											$\dot{\text{S}}$
gB	805	K											$\dot{\text{R}}$
gB	809	E														-
gC	17	S									N	N
gC	76	Y		$\boxed{\mathbf{\text{C}}}$
gC	108	I										T
gD	137	V				L	L				L	L
gD	141	P				S	S				S	S
gD	145	V									L	L
gD	155	F	$\boxed{\mathbf{\text{S}}}$
gD	158	T				N	N				N	N
gD	194	Q				R	R
gD	222	D		$\boxed{\text{V}}$	$\boxed{\text{V}}$
gD	234	G				R	R				R	R
gD	311	D										N
gD	350	M									I	I
gD	376	R	$\boxed{\mathbf{\text{H}}}$
gE	210	R	$\text{K}$	$\text{K}$				$\text{K}$	$\text{K}$	$\text{K}$							$\text{K}$		$\text{K}$	$\text{K}$	$\text{K}$
gE	267	V			A	A	A				A	A
gE	386	T												$\dot{\text{A}}$	$\dot{\text{A}}$							$\dot{\text{A}}$	$\dot{\text{A}}$	$\dot{\text{A}}$
gE	420	P										L
gE	424	N									S
gG	45	I			L	L	L
gG	58	V			G	G	G				G	G
gG	73	E										D
gG	98	H			$\text{N}$	$\text{N}$	$\text{N}$				$\text{N}$	$\text{N}$	$\text{N}$
gG	113	A			$\boxed{\mathbf{\text{V}}}$
gG	115	V			$\text{G}$	$\text{G}$	$\text{G}$				$\text{G}$	$\text{G}$	$\text{G}$
gG	118	A			V	V	V
gG	121	A									V	V
gG	129	Q			H	H	H
gG	220	G											$\dot{\text{L}}$
gG	262	E			$\boxed{\text{G}}$
gG	274	R										K
gG	284	F			L	L	L				L	L
gG	291	Q			R	R	R
gH	355	E			$\boxed{\mathbf{\text{G}}}$
gH	401	H			R	R	R		R	R	R	R
gH	452	D			$\boxed{\mathbf{\text{G}}}$
gH	455	Y		H
gH	566	I			V	V	V			V
gH	568	L			$\text{S}$	$\text{S}$	$\text{S}$			$\text{S}$	$\text{S}$	$\text{S}$	$\text{S}$
gH	605	N			H	H	H			H
gH	697	Q			$\boxed{\mathbf{\text{R}}}$
gH	711	L		$\boxed{\mathbf{\text{R}}}$
gH	778	R									S
gI	14	T	$\boxed{\mathbf{\text{A}}}$
gI	38	H										R
gI	39	I			V	V	V				V	V
gI	40	V										A
gI	109	E	$\boxed{\mathbf{\text{V}}}$
gI	178	A			$\text{D}$	$\text{D}$	$\text{D}$				$\text{D}$	$\text{D}$	$\text{D}$
gI	185	L			F	F	F				F	F
gI	211	A			T	T	T
gI	212	T			P	P	P				P	P
gI	224	V			I	I	I
gI	253	P									H	H
gI	358	D									E	E
gJ	8	R				H	H				H	H
gJ	74	I										T
gJ	88	G		$\boxed{\mathbf{\text{E}}}$
gJ	162	R												$\dot{\text{W}}$	$\dot{\text{W}}$							$\dot{\text{W}}$	$\dot{\text{W}}$	$\dot{\text{W}}$
gJ	163	G										D
gJ	257	P									L	L
gJ	264	M		$\boxed{\mathbf{\text{L}}}$
gJ	293	V												$\dot{\text{A}}$	$\dot{\text{A}}$							$\dot{\text{A}}$	$\dot{\text{A}}$	$\dot{\text{A}}$
gJ	301	M			I	I	I				I	I
gJ	318	M		$\boxed{\mathbf{\text{K}}}$
gJ	337	R			G	G	G
gJ	340	A														$\dot{\text{T}}$
gJ	359	T									P	P
gJ	426	T			A	A	A
gJ	463	A									V	V
gJ	494	A			V	V	V				V	V
gJ	502	A			D	D	D
gJ	520	Q			$\boxed{\mathbf{\text{P}}}$
gJ	584	R									W	W
gJ	600	E			G	G	G
gJ	643	P			$\boxed{\mathbf{\text{S}}}$
gJ	647	T			I	I	I
gJ	661–670	-			STVPEITQTP	STVPEITQTP	STVPEITQTP					STVPEITQTP
gJ	694	A											$\dot{\text{T}}$
gJ	715	V									M	M
gJ	719	P									Q	Q
gJ	887	L			F	F	F				F	F
gK	216	V				I	I
gL	8	P												$\dot{\text{Q}}$	$\dot{\text{Q}}$							$\dot{\text{Q}}$	$\dot{\text{Q}}$	$\dot{\text{Q}}$
gL	126	P				Q	Q			Q
gL	141	P						Q
gL	202	A									V	V
gM	23	A	$\text{T}$	$\text{T}$	$\text{T}$				$\text{T}$										$\text{T}$	$\text{T}$	$\text{T}$
gM	32	C			$\boxed{\mathbf{\text{Y}}}$
gM	229	P											$\dot{\text{S}}$
gM	236	M		$\boxed{\mathbf{\text{T}}}$
gM	350	K	$\boxed{\mathbf{\text{E}}}$
gN	16	V			M	M	M
gN	40	Y			H	H	H

Note:

1. Bold (except bold italic) (A) represents the mutational sites were found only in single strain.

2. Italic (A) represents the mutational sites were found in strains WG, SA2, and A20.

3. Bold italic (A) represents the mutational sites were found among WG strain and Australia strains.

4. Underline (A and A) represents the mutational sites were found only in Australia strains.

5. Character border ($\boxed{\text{A}}$ and $\boxed{\mathbf{\text{A}}}$) represents the mutational sites were found in Chinese strains.

6. Emphasis mark ($\dot{\text{A}}$ and $\dot{\text{A}}$) represents the mutational sites were found only in USA strains.

7. Light grey ($\text{A}$) represents the mutational sites were found among Chinese strains, USA strains and Australia strains.