tokens: Transcription of the six EBNA genes , which are expressed in EBV immortalized primary B cells , arises from one of two promoters , Cp and Wp , located near the left end of the viral genome .
folded_tokens: transcription of the six ebna gene , which be express in ebv immortalize primary b cell , arise from one of two promoter , cp and wp , located near the left end of the viral genome .