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Internal ribosomal binding requires a cis-acting element termed the internal ribosomal entry site ( IRES ).
 IRES, cis-acting element, internal ribosomal entry site
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, cis-acting element, internal ribosomal entry site