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The active nuclear form of the NF-kappa B transcription factor complex is composed of two DNA binding subunits , NF-kappa B p65 and NF-kappa B p50 , both of which share extensive N-terminal sequence homology with the v-rel oncogene product .
 protein: v-rel oncogene product; protein: DNA binding subunits; protein: NF-kappa B transcription factor complex; protein: NF-kappa B p65; protein: NF-kappa B p50
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: v-rel oncogene product; protein: DNA binding subunits; protein: NF-kappa B transcription factor complex; protein: NF-kappa B p65; protein: NF-kappa B p50