6705
Binding of NF-AT , NF-kappaB , and AP-1 was induced by T-cell receptor ( TcR ) stimulation , although there was no significant upregulation of binding by IL-2 stimulation .
 protein: AP-1; protein: NF-kappaB; protein: NF-AT; protein: TcR; protein: IL-2; protein: T-cell receptor
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: AP-1, NF-kappaB, NF-AT, TcR, IL-2, T-cell receptor 
Answer:
 protein: AP-1; protein: NF-kappaB; protein: NF-AT; protein: TcR; protein: IL-2; protein: T-cell receptor