TABLE 1.

Seroreactivities of recombinant VCA fragments in Western blots developed with sera from infectious mononucleosis patients (IgM) or previously infected donors (IgG)

Antigen	Reading frame	Cloned sequence (aa)	Fusion	No. of positive sera		Intensity of reactiona
				IgM (n = 9)	IgG (n = 9)	IgM	IgG
gp125/1	BALF4	433–580	GST	0	0
gp125/2	BALF4	580–729	GST	0	0
gp125/3	BALF4	752–857	GST	0	0
p143/1	BNRF1	1–253	GST	8	9	(+)	+
p143/2	BNRF1	254–488	GST	0	0
p143/3	BNRF1	489–739	GST	5	3	(+)	(+)
p143/4	BNRF1	811–1088	GST	6	5	(+)	(+)
p143/5	BNRF1	1089–1322	GST	1	5	(+)	(+)
p150/1	BcLF1	1–199	GST	3	1	(+)	+
p150/2	BcLF1	303–455	GST	0	0
p150/3	BcLF1	450–556	GST	0	0
p150/4	BcLF1	450–659	GST	3	3	(+)	(+)
p150/5	BcLF1	659–857	GST	3	2	(+)	+
p18	BFRF3	105–176	GST	9	9	++	++
p23	BLRF2	1–162b	None	4	9	++	++

^aSymbols indicating intensity of stained bands: (+), weak bands only; +, moderate bands; ++, strong reaction. 

^bFull length.