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Previous data are consistent with a model that LMP1 is a constitutively activated receptor that transduces signals for transformation through its carboxyl-terminal cytoplasmic tail .
 LMP1, carboxyl-terminal cytoplasmic tail, constitutively activated receptor
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:
 LMP1, carboxyl-terminal cytoplasmic tail, constitutively activated receptor