1475
Several transcription factors participate in IL-2 promoter activation , among which are AP-1 -like factors and NF-kappa B .
 protein: AP-1 -like factors; protein: transcription factors; protein: IL-2; protein: NF-kappa B; protein: AP-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: AP-1 -like factors; protein: transcription factors; protein: IL-2; protein: NF-kappa B; protein: AP-1