12543
Since the co-expression with a dominant negative c-Fos abolished the responsiveness to TPA , we conclude that activated transcription of the DRA gene depends on interactions between the X2 box and NF-X2 , which contains c-Fos .
 protein: c-Fos; DNA: DRA gene; protein: c-Fos; DNA: X2 box; DNA: NF-X2
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: c-Fos, DRA gene, c-Fos, X2 box, NF-X2 
Answer:
 protein: c-Fos; DNA: DRA gene; protein: c-Fos; DNA: X2 box; DNA: NF-X2