1652
Furthermore, we demonstrate that the PU-SF complex binds to PU.1 sites found on a number of myeloid promoters , and its formation requires an intact PU.1 site adjacent to a single-stranded region.
 protein: PU.1; protein: PU-SF complex; DNA: myeloid promoters; protein: PU.1; DNA: PU.1 site; protein: PU-SF
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: PU.1; protein: PU-SF complex; DNA: myeloid promoters; protein: PU.1; DNA: PU.1 site; protein: PU-SF