2062
Because the Nef protein does not affect the surface expression of the CD3 -TCR complex, we conclude that the Nef protein down-regulates the transcriptional factors NF-kappa B and AP-1 in T cells in vitro through an effect on the TCR-dependent signal transduction pathway .
 protein: AP-1; cell type: T cells; protein: NF-kappa B; protein: CD3; protein: Nef; protein: Nef
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, T cells, NF-kappa B, CD3, Nef, Nef 
Answer:
 protein: AP-1; cell type: T cells; protein: NF-kappa B; protein: CD3; protein: Nef; protein: Nef