1610
As a homodimer JunB is unable to bind the enhancer; however in the presence of c-Fos , high-affinity binding is observed.
 protein: c-Fos; protein: JunB
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-Fos; protein: JunB