5196
We have previously shown that a DNA-binding factor specific to adult hematopoietic cells ( polypryrimidine-binding factor , PYBF ) binds to a pyrimidine-rich region 1 kb upstream from the human delta-globin-encoding gene ( HBD ).
 ( protein: PYBF, None) , ( cell type: adult hematopoietic cells, None) , ( protein: DNA-binding factor, None) , ( DNA: 1 kb upstream, None) , ( DNA: HBD, None) , ( DNA: pyrimidine-rich region, None) , ( protein: polypryrimidine-binding factor, None) , ( DNA: human delta-globin-encoding gene, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: PYBF, None) , ( cell type: adult hematopoietic cells, None) , ( protein: DNA-binding factor, None) , ( DNA: 1 kb upstream, None) , ( DNA: HBD, None) , ( DNA: pyrimidine-rich region, None) , ( protein: polypryrimidine-binding factor, None) , ( DNA: human delta-globin-encoding gene, None) 