Table 1.

Comparison of the S-Meq protein amino acid sequences among field isolates.

			Basic region			Leucine zipper				Transactivation domaina
MDV strain	Country	Accession number	71	77	80	110	114	115	119	150	168	-/176	176/217b	177/218	180/221	285/326
Kgw-c2	Japan	LC385874	A	E	Y	C	C	A	C	H	S	-	A	P	A	T
CVI988(S-Meq)	Netherlands	AY243338	A	E	D	C	R	V	C	H	S	-	P	P	A	I
855/17	Italy	MK139678	A	E	Y	S	R	V	C	H	S	-	P	S	T	T
MDV/2/SA	Saudi Arabia	KJ949618	A	E	Y	S	R	V	C	P	S	-	P	P	A	T
Iraq3A	Iraq	KC243262	A	E	Y	C	R	V	R	H	P	-	A	P	A	T
Iraq10A	Iraq	KC243264	S	E	D	C	R	V	C	H	P	-	A	P	A	T
Iraq6F	Iraq	KC243263	S	E	D	C	R	V	C	H	S	-	A	P	A	T
Nr-c1c	Japan	LC385871	A	E	Y	C	R	A	C	H	S	S	A	P	A	T

^aS-Meq has 41 aa-deletions in the transactivation domain.

^bInterruptions at position 2 of the direct proline repeats.

^cMeq amino acid sequence from a Japanese strain is indicated and its sequence is the most frequent among the field strains in Japan (Murata et al., 2013).