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Transfection studies indicate that the I kappa B alpha gene is specifically induced by the 65-kilodalton transactivating subunit of NF-kappa B .
 65-kilodalton transactivating subunit, I kappa B alpha gene, NF-kappa B, I kappa B alpha
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:
 65-kilodalton transactivating subunit, I kappa B alpha gene, NF-kappa B, I kappa B alpha