Detection of EBV BALF1 gene by PCR. Amplified PCR products were electrophoresed and the presence of BALF1 sequence  was confirmed by hybridization with 32P labeled BamH1-A fragment used as a probe. A: lanes 1-8 for tumor samples and B: lanes 9-16 for precancerous lesions. B95-8 DNA and H2O were used as positive and negative controls respectively.
Khenchouche et al. Virology Journal 2013 10:340 doi:10.1186/1743-422X-10-340