1215
The mechanism by which TGF-beta inhibits Ig chain synthesis is unclear although it does not involve inhibition of the binding of NF-kappa B or Oct-2 to their respective target sequences.
 protein: NF-kappa B; protein: Oct-2; protein: TGF-beta
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: NF-kappa B; protein: Oct-2; protein: TGF-beta