5492
Upon cellular activation, I kappa B alpha is phosphorylated, polyubiquitinated, and degraded in the proteasome .
 protein: proteasome; protein: I kappa B alpha
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: proteasome, I kappa B alpha 
Answer:
 protein: proteasome; protein: I kappa B alpha