1022
ROI appear to serve as messengers mediating directly or indirectly the release of the inhibitory subunit I kappa B from NF-kappa B .
 protein: inhibitory subunit; protein: NF-kappa B; protein: I kappa B
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: inhibitory subunit; protein: NF-kappa B; protein: I kappa B