1489
Enhancement of HIV-1 replication is related in part to increased DNA-binding activity of cellular transcription factors such as NF-kappa B .
 protein: cellular transcription factors; protein: transcription factors; protein: NF-kappa B
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: cellular transcription factors; protein: transcription factors; protein: NF-kappa B