Further, we tested UBE2L6 transcription levels in six cell lines (CNE1, CNE2, TW03, HNE1, HONE1 and C666-1), 37 NPC primary tumor biopsies and 12 normal nasopharyngeal epithelium by RT-PCR. The gene discussed is UBE2L6; the disease is nasopharyngeal carcinoma.