10718
The core of the promoter ( positions -42 to +11 ) is recognized by the lymphoid cell -specific transcription factors Ets-1 , LEF1 , and AML1 as well as by CREB/ATF-1 , as is demonstrated in gel shift and footprinting experiments .
 ( protein: LEF1, None) , ( protein: AML1, None) , ( DNA: positions -42 to +11, None) , ( protein: Ets-1, None) , ( DNA: promoter, None) , ( cell type: lymphoid cell, None) , ( protein: CREB/ATF-1, None) , ( protein: lymphoid cell -specific transcription factors, 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: LEF1, None) , ( protein: AML1, None) , ( DNA: positions -42 to +11, None) , ( protein: Ets-1, None) , ( DNA: promoter, None) , ( cell type: lymphoid cell, None) , ( protein: CREB/ATF-1, None) , ( protein: lymphoid cell -specific transcription factors, None) 