10897
Gel shift assays demonstrated SP1 and Egr-1 binding to the CD19 GC box , while unknown nuclear proteins bound the PyG and AT boxes .
 ( protein: Egr-1, None) , ( DNA: CD19 GC box, 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: Egr-1, None) , ( DNA: CD19 GC box, None) 