685
In particular, the c-Rel homodimer has a high affinity for interleukin-6 ( IL-6 ) and beta interferon kappa B sites .
 DNA: beta interferon kappa B sites; DNA: kappa B sites; protein: c-Rel; protein: c-Rel homodimer; protein: IL-6; protein: interleukin-6
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:
 DNA: beta interferon kappa B sites; DNA: kappa B sites; protein: c-Rel; protein: c-Rel homodimer; protein: IL-6; protein: interleukin-6