3242
The IRF-2 promoter region contains a CpG island , with several GC boxes , a putative NF-kappa B -binding site , and a CAAT box , but no TATA box .
 CpG island, NF-kappa B, CAAT box, TATA box, GC boxes, NF-kappa B -binding site, IRF-2, promoter region
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:
 CpG island, NF-kappa B, CAAT box, TATA box, GC boxes, NF-kappa B -binding site, IRF-2, promoter region