1326
Promoter deletion studies revealed two additional NF-IL6 binding sites located at positions -44 to -36 ( C/EBP proximal ) and -87 to -79 ( C/EBP medial ), respectively.
 protein: C/EBP medial; protein: NF-IL6; DNA: NF-IL6 binding sites; protein: C/EBP proximal
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: C/EBP medial; protein: NF-IL6; DNA: NF-IL6 binding sites; protein: C/EBP proximal