TABLE 3.

Induction of EBV replication and virus production in infected 293 cells

Cell line	Transfection	% Positivea			G418r virus released (CFU/ml)b
		Z	VCA	gp350/220
293	pMCV-RZ	5.6	0.0	0.0	0
293(P3-531)-3c	Mock	0.0	0.0	0.0	0
	pCMV-RZ	5.9	1.6	0.3	22 ± 5
293(P3-531)-5	Mock	0.0	0.0	0.0	0
	pCMV-RZ	9.3	0.8	0.0	3.7 ± 1.0
B95-8	NAd	6.6	6.5	4.0	NAd

^aPercentage of cells positive for the antigen by immunofluorescence. 

^bDetermined by infection of BL30; average of two measurements ± standard error of the mean. 

^cCarries both parental P3HR1 and recombinant P3-531 EBV genomes. 

^dNA, not applicable.