14218
To determine whether Nef affects the binding of cellular factors implicated in HIV-1 regulation , 32P-labeled oligonucleotides corresponding to the binding sites were incubated with nuclear extracts prepared from Nef-expressing T-cell lines that were not stimulated or were stimulated with T-cell mitogens .
 cell line: Nef-expressing T-cell lines; protein: cellular factors; protein: Nef; protein: T-cell mitogens
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: Nef-expressing T-cell lines, cellular factors, Nef, T-cell mitogens 
Answer:
 cell line: Nef-expressing T-cell lines; protein: cellular factors; protein: Nef; protein: T-cell mitogens