13189
When levels were semiquantitated using densitometry , significant decreases of TCRzeta (P = 0.029) and p56(lck) (P = 0.029) but not CD3epsilon (P = 0.131), compared with control levels, were found.
 protein: TCRzeta; protein: CD3epsilon; protein: p56(lck)
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: TCRzeta, CD3epsilon, p56(lck) 
Answer:
 protein: TCRzeta; protein: CD3epsilon; protein: p56(lck)