1447
Complex 1 results from binding of a ubiquitous polypeptide that recognizes the 3' portion of this sequence and is not required for repression .
 protein: Complex 1; DNA: 3' portion
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: Complex 1; DNA: 3' portion