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Alternative splicing of RNA transcripts encoded by the murine p105 NF-kappa B gene generates I kappa B gamma isoforms with different inhibitory activities .
 I kappa B gamma isoforms, murine p105 NF-kappa B gene, RNA transcripts
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:
 I kappa B gamma isoforms, murine p105 NF-kappa B gene, RNA transcripts