11490
Mutational analysis showed that optimal transcriptional activity required the GATA sequence at position -24 , and gel-shift assays further showed that the GATA-2 transcription factor , but not GATA-1 , bound to this region of the PECAM-1 promoter .
 ( DNA: -24, None) , ( protein: GATA-1, None) , ( protein: GATA-2 transcription factor, None) , ( DNA: PECAM-1 promoter, None) , ( DNA: GATA sequence, None) , ( protein: GATA-2, 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:
 ( DNA: -24, None) , ( protein: GATA-1, None) , ( protein: GATA-2 transcription factor, None) , ( DNA: PECAM-1 promoter, None) , ( DNA: GATA sequence, None) , ( protein: GATA-2, None) 