422
This region is termed the CK-1 or CD28RE and appears to bind specific members of the NF-kappa B family of transcription factors .
 protein: transcription factors; DNA: CK-1; protein: NF-kappa B family; DNA: CD28RE; protein: NF-kappa B
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: transcription factors, CK-1, NF-kappa B family, CD28RE, NF-kappa B 
Answer:
 protein: transcription factors; DNA: CK-1; protein: NF-kappa B family; DNA: CD28RE; protein: NF-kappa B