1453
PU.1 is a hematopoietic transcription factor belonging to the Ets-family .
 protein: PU.1; protein: hematopoietic transcription factor; protein: Ets-family
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: hematopoietic transcription factor; protein: Ets-family