1543
DNA-protein crosslinking studies have revealed that the more rapidly migrating B2 complex contains both p50 and p55 while the more slowly migrating B1 complex is composed of p50 , p55 , p75 , and p85 .
 protein: B1 complex; protein: p55; protein: p75; protein: p55; protein: p50; protein: p50; protein: B2 complex; 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: B1 complex; protein: p55; protein: p75; protein: p55; protein: p50; protein: p50; protein: B2 complex; protein: p85