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Human peripheral B cells became capable of constitutively producing p40 by in vitro transformation with EBV , coincident with the expression of latent membrane protein 1 ( LMP1 ) of EBV .
 latent membrane protein 1, LMP1, Human peripheral B cells
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 latent membrane protein 1, LMP1, Human peripheral B cells