Table 1. Previously unrecognized ORFs conserved in the four clinical isolates.

ORF	Position	Strand	AD169	Towne	ChCMV
C-ORF1	1911-2219	+	+	+	-
C-ORF2	2002-2313	-	+	+	+
C-ORF3	3201-3464	-	-	+	-
C-ORF4	7721-7993	+	+	+	-
C-ORF5	8623-8946	-	+	+	-
C-ORF6	23457-23714	-	+	+	-
C-ORF7	29049-29441	+	+	+	+
C-ORF8	34809-35084	+	+	+	-
C-ORF9	35428-35847	-	+	+	+
C-ORF10	42908-43321	+	+	+	+
C-ORF11	46173-46517	-	+	+	-
C-ORF12	53739-54098	-	+	-	-
C-ORF13	54532-54792	+	+	+	+
C-ORF14	54705-55322	+	+	+	+
C-ORF15	120245-120505	-	+	+	+
C-ORF16	157089-157358	-	+	+	-
C-ORF17	159004-159321	+	+	+	-
C-ORF18	161498-161749	-	+	+	+
C-ORF19	162157-162567	-	+	+	-
C-ORF20	166218-166598	+	+	+	-
C-ORF21	167837-168241	+	+	+	+
C-ORF22	168302-168568	+	+	+	+
C-ORF23	175896-176174	+	+	+	+
C-ORF24	184793-185437	+	-	-	+
C-ORF25	190194-190643	-	-	-	-
C-ORF26	190299-190754	+	-	-	-
C-ORF27	204440-204773	+	+	+	-
C-ORF28	205251-205532	+	+	+	+
C-ORF29	207279-207572	-	+	+	+

The ORFs are positioned in the FIX sequence, which has been organized into the order of the conventional map for clinical isolates that is displayed in Fig. 1A. blastp was used to search for homologues to the conserved ORFs in the AD169 and Towne sequences reported here, as well as in the chimpanzee cytomegalovirus (ChCMV) sequence (4).