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We have recently reported the establishment of a lipopolysaccharide ( LPS )-dependent cell-free activation system of NF-kappa B in association with the induction of I kappa B alpha phosphorylation .
 protein: NF-kappa B; protein: I kappa B; protein: I kappa B alpha
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: I kappa B; protein: I kappa B alpha