4489
Whereas 94-kD STAT5A was clearly tyrosine phosphorylated and bound to the enhancer element , the gamma response region ( GRR ), of the Fc gamma RI gene , substantially less tyrosine phosphorylated STAT5B bound to the immobilized GRR element .
 ( protein: STAT5B, None) , ( DNA: GRR element, None) , ( DNA: enhancer element, None) , ( DNA: gamma response region, None) , ( DNA: GRR, None) , ( DNA: GRR, None) , ( DNA: Fc gamma RI gene, None) , ( protein: STAT5A, None) , ( protein: 94-kD STAT5A, 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: STAT5B, None) , ( DNA: GRR element, None) , ( DNA: enhancer element, None) , ( DNA: gamma response region, None) , ( DNA: GRR, None) , ( DNA: GRR, None) , ( DNA: Fc gamma RI gene, None) , ( protein: STAT5A, None) , ( protein: 94-kD STAT5A, None) 