9794
NF-kappa B activation was independent of the transmembrane domain of CD40 , suggesting that it is independent of p23 , a molecule that associates with CD40 in a region other than the cytoplasmic domain .
 CD40, NF-kappa B, p23, cytoplasmic domain, transmembrane domain, CD40
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 CD40, NF-kappa B, p23, cytoplasmic domain, transmembrane domain, CD40