1238
Triggering of the human interleukin-6 gene by interferon-gamma and tumor necrosis factor-alpha in monocytic cells involves cooperation between interferon regulatory factor-1 , NF kappa B , and Sp1 transcription factors .
 protein: transcription factors; protein: NF kappa B; protein: Sp1; protein: interferon regulatory factor-1
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: transcription factors; protein: NF kappa B; protein: Sp1; protein: interferon regulatory factor-1