TABLE 1 .

P4-to-P4′ residues of the 1/2 cleavage site of different alphaviruses and their strains

Virus (strain)	Amino acid position	Residue at the following position of the cleavage motif:
		P4	P3	P2	P1	P1′	P2′	P3′	P4′
RRV-T48	531	R	A	G	A	G	V	V	E
SFV4	534	H	A	G	A	G	V	V	E
CHIKV	532	R	A	G	A	G	I	I	E
SINVT538 (S.A.AR86)	537	D	T	G	A	A	L	V	E
SINVI538 (TOTO1101)	537	D	I	G	A	A	L	V	E