4651
A gel retardation experiment with synthetic double-stranded oligonucleotides showed that activated NF-kappa B consisting of p50/p65 heterodimer bound to all four putative NF-kappa B DNA probes , suggesting that all four putative NF-kappa B recognition sites play an important role in inducible TNF-alpha expression .
 protein: TNF-alpha; protein: NF-kappa B; DNA: NF-kappa B recognition sites; protein: p50/p65 heterodimer; protein: NF-kappa B; DNA: NF-kappa B DNA probes; 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: TNF-alpha, NF-kappa B, NF-kappa B recognition sites, p50/p65 heterodimer, NF-kappa B, NF-kappa B DNA probes, NF-kappa B 
Answer:
 protein: TNF-alpha; protein: NF-kappa B; DNA: NF-kappa B recognition sites; protein: p50/p65 heterodimer; protein: NF-kappa B; DNA: NF-kappa B DNA probes; protein: NF-kappa B