1541
These two DNA-protein complexes are composed of at least four host proteins ( p50 , p55 , p75 , p85 ), each of which shares structural similarity with the v-rel oncogene product .
 protein: p75; protein: p55; protein: p50; protein: DNA-protein complexes; protein: v-rel oncogene product; protein: p85
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: p75; protein: p55; protein: p50; protein: DNA-protein complexes; protein: v-rel oncogene product; protein: p85