TABLE 1.

Amino acid residues in the VP2 of parvoviruses of the feline subgroup

Virus	Origin, yr	Strain	Host	Protein at residuea:
				80	87	93	101	232	265	297	300	305	323	426	555	564	568
FPV	USA, 1967	FPV-b	Cat	Lys	—	Lys	—	Val	—	—	—	—	Asp	—	—	Asn	Ala
MEV	USA, 1975	MEV-b	Mink	Lys	—	Lys	—	Val	—	—	—	—	Asp	—	—	Asn	Ala
CPV-2	USA, 1978	CPV-b	Dog	Arg	Met	Asn	Ile	Ile	Thr	Ser	Ala	Asp	Asn	Asn	Val	Ser	Gly
	USA, 1978	CPV-Norden	Dog	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Vaccine A		Cornell 780916b	Dog	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Vaccine B		154b	Dog	—	—	—	—	—	—	—	—	—	—	—	—	—	—
CPV-2a	USA, 1984	CPV-15	Dog	—	Leu	—	Thr	—	—	—	Gly	Tyr	—	—	Ile	—	—
	USA, 1983	CPV-31	Dog	—	Leu	—	Thr	—	—	—	Gly	Tyr	—	—	Ile	—	—
CPV-2b	USA, 1984	CPV-39	Dog	—	Leu	—	Thr	—	—	—	Gly	Tyr	—	Asp	—	—	—
	USA, 1990	CPV-133	Dog	—	Leu	—	Thr	—	—	—	Gly	Tyr	—	Asp	—	—	—
Asp-300 CPV-2	Vietnam, 2000	LCPV-V203	Leopard	—	Leu	—	Thr	—	—	Ala	Asp	Tyr	—	Asp	—	—	—
	Vietnam, 2000	LCPV-V140	Leopard	—	Leu	—	Thr	—	—	Ala	Asp	Tyr	—	—	—	—	—
Pro-265 CPV-2	Italy, 2000	CPV-616	Dog	—	Leu	—	Thr	—	Pro	—	Gly	Tyr	—	Asp	—	—	—
	Italy, 2000	W42	Wolf	—	Leu	—	Thr	—	Pro	—	Gly	Tyr	—	Asp	—	—	—
Glu-426 CPV-2	Italy, 2000	136/00	Dog	—	Leu	—	Thr	—	—	Ala	Gly	Tyr	—	Glu	—	—	—
	Italy, 2000	56/00	Dog	—	Leu	—	Thr	—	—	Ala	Gly	Tyr	—	Glu	—	—	—
CPV-2b vaccine	Italy, 1997	29/97, 68th passageb	Dog	—	Leu	—	Thr	—	—	Ala	Gly	Tyr	—	Asp	—	—	—

^aDashes indicate identity to the sequence of the CPV-2 strain b (in boldface). CPV-2 variants of recent identification are also reported.

^bThese strains have been sequenced in this study.