12203
Epstein-Barr virus , a human gammaherpesvirus , possesses a unique set of latent genes whose constitutive expression in B cells leads to cell growth transformation .
 ( cell type: B cells, None) , ( DNA: latent genes, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell type: B cells, None) , ( DNA: latent genes, None) 