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The proto-oncoprotein c-Rel is a member of the nuclear factor kappa B transcription factor family , which includes the p50 and p65 subunits of nuclear factor kappa B .
 protein: nuclear factor kappa B transcription factor family; protein: p50; protein: proto-oncoprotein c-Rel; protein: p65 subunits; protein: nuclear factor 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: nuclear factor kappa B transcription factor family; protein: p50; protein: proto-oncoprotein c-Rel; protein: p65 subunits; protein: nuclear factor kappa B