Table 1. Methylation of the Nap ZREs in the EBV genome.

Cell Line	Description	ZRE2	ZRE1 −2	ZRE1 +2
293-ZKO	superinfected 293	5/5	5/5	4/5
HONE-1/EBV	superinfected NPC	7/8	7/8	7/8
SNU-719	EBV+ gastric	8/8	8/8	7/8
Raji	EBV+ BL	8/8	8/8	8/8

The cytosine methylation status of the CpG motifs within the ZRE1 and ZRE2 sites in the Nap in different latently infected EBV+ cell lines is shown. The number of clones found to contain a methylated CpG in each Nap ZRE, versus the number of clones sequenced in each cell line (following bisulfate treatment), is indicated.