621
However, this deletion mutation prevented the induced phosphorylation , degradative loss , and functional release of I kappa B alpha from NF-kappa B in Tax -expressing cells .
 protein: I kappa B alpha; protein: NF-kappa B; cell line: Tax -expressing cells; protein: Tax
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: I kappa B alpha, NF-kappa B, Tax -expressing cells, Tax 
Answer:
 protein: I kappa B alpha; protein: NF-kappa B; cell line: Tax -expressing cells; protein: Tax