981
As with the heterologous DNA binding domain , MZF-1 represses reporter gene expression in nonhematopoietic cell lines and activates expression in hematopoietic cell lines .
 cell line: hematopoietic cell lines; cell line: nonhematopoietic cell lines; protein: DNA binding domain; DNA: MZF-1; DNA: reporter gene
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:
 cell line: hematopoietic cell lines; cell line: nonhematopoietic cell lines; protein: DNA binding domain; DNA: MZF-1; DNA: reporter gene