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Five cellular proteins ( p52 , p57 , p70 , p72 , and p100 ) cross-link the EMCV IRES or fragments of the IRES .
 IRES, cellular proteins, p72, p70, p57, p100, p52, IRES
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:
 IRES, cellular proteins, p72, p70, p57, p100, p52, IRES