TABLE 1.

Summary of regions in the genomes of HSV-1 and HSV-2

Region	Virus	Length (bp)	% G+C	No. of genesa
RL (as TRL)	HSV-1	9,212	71.6	2
	HSV-2	9,297	75.4	2
UL	HSV-1	107,947	66.9	58
	HSV-2	108,689	68.9	58
US	HSV-1	12,980	64.3	13
	HSV-2	14,329	66.2	13
RS (as TRS)	HSV-1	6,677	79.5	1
	HSV-2	6,711	80.1	1
Whole genome	HSV-1	152,261	68.3	74
	HSV-2	154,746	70.4	74

^aEstimates of the number of genes encoding distinct proteins, as discussed in the text.