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We show here that c-Rel binds to kappa B sites as homodimers as well as heterodimers with p50 .
 protein: c-Rel; protein: p50; DNA: kappa B sites; protein: homodimers; protein: heterodimers
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: c-Rel; protein: p50; DNA: kappa B sites; protein: homodimers; protein: heterodimers