2001
Two nuclear factor NF-IL6 (positions -153 to -145 and -83 to -75) and one nuclear factor NF-kappa B (positions -72 to -63) motifs are present within this fragment.
 nuclear factor NF-IL6, -153 to -145, nuclear factor NF-kappa B (positions -72 to -63) motifs, NF-kappa B, NF-IL6
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:
 nuclear factor NF-IL6, -153 to -145, nuclear factor NF-kappa B (positions -72 to -63) motifs, NF-kappa B, NF-IL6