8708
These transcription factors are either not produced due to block of transcription of their respective genes ( Oct-2 , OBF-1 , PU.1 ), or are rendered inactive posttranslationally ( NF-kappa B , E47 ).
 DNA: OBF-1; DNA: E47; protein: transcription factors; protein: PU.1; protein: NF-kappa B; DNA: Oct-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: OBF-1, E47, transcription factors, PU.1, NF-kappa B, Oct-2 
Answer:
 DNA: OBF-1; DNA: E47; protein: transcription factors; protein: PU.1; protein: NF-kappa B; DNA: Oct-2