6632
Unlike TNFR1 , LMP1 can interact directly with receptor-interacting protein ( RIP ) and stably associates with RIP in EBV -transformed lymphoblastoid cell lines .
 RIP, RIP, TNFR1, EBV -transformed lymphoblastoid cell lines, LMP1, receptor-interacting protein
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:
 RIP, RIP, TNFR1, EBV -transformed lymphoblastoid cell lines, LMP1, receptor-interacting protein