Table 1. Amino acid differences in protein 1a of CMV-Fny and CMV-P1.

Region	Number of aa differences	Position	CMV-Fny	CMV-P1
1–456	18	23	Thr	Asn
(Methyltransferase		54	Gly	Ser
domain)		147	Asn	Ser
		169	Gln	His
		224	Val	Leu
		242	Thr	Ala
		249	Val	Ser
		252	Leu	Ile
		255	Thr	Ser
		256	Val	Gly
		258	Ser	Thr
		259	Arg	Gly
		266	Met	Leu
		267	Val	Ile
		284	Glu	Lys
		298	Arg	Lys
		310	His	Asn
		355	Glu	Lys
457–645	9	513	Tyr	Phe
		542	Ser	Ile
		550	Thr	Ala
		553	Gln	Pro
		555	Pro	Leu
		566	Arg	Gln
		576	Ala	Val
		585	Val	Ile
		623	Arg	Lys
646–993	10	646	Ile	Val
(Helicase domain)		662	Val	Ala
		690	Cys	Ser
		697	Thr	Ala
		865	His	Arg
		896	Ser	Glu
		901	Ile	Val
		957	Gln	Lys
		980	Val	Ala
		993	Ala	Val