Figure 3
![Figure 3](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1423-0127-16-105/MediaObjects/12929_2009_Article_105_Fig3_HTML.jpg)
Detection of EBV DNA by polymerase chain reaction. Panel A, a fragment of 153 bp and 246 bp of EBNA-3C were detected in B95-8 (lane 1) and AG876 (lane 2); NPC-BM1 (lane 3), NPC-BM00 (lane 4) and NPC-BM29 (lane 5) were all negative for EBNA-3C. Panel B, an expected fragment of 125 bp of Bam HI W were detected in B95-8 (lane 1) and AG876 (lane 2), but not in NPC-BM1, NPC-BM00 and NPC-BM29.