1002
The pattern of binding activity in restimulated T cells is consistent with the pattern that has previously been shown to regulate T-cell-specific expression of the IL-2 and the beta chain of the TcR genes .
 DNA: TcR genes; cell type: T cells; protein: TcR; protein: IL-2
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: TcR genes, T cells, TcR, IL-2 
Answer:
 DNA: TcR genes; cell type: T cells; protein: TcR; protein: IL-2