14562
By comparison, there was no modification of the expression of CD4 antigen , which is expressed at high levels in these cells.
 protein: CD4 antigen
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: CD4 antigen 
Answer:
 protein: CD4 antigen