3219
The Rel/NF-kappa B proteins , p50 , p52 , p65 , c-Rel , and RelB , constitute a family of transcription factors involved in the positive regulation of a variety of genes during the immune response .
 protein: transcription factors; protein: p50; protein: p52; protein: RelB; protein: p65; protein: Rel/NF-kappa B proteins; protein: c-Rel
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, p50, p52, RelB, p65, Rel/NF-kappa B proteins, c-Rel 
Answer:
 protein: transcription factors; protein: p50; protein: p52; protein: RelB; protein: p65; protein: Rel/NF-kappa B proteins; protein: c-Rel