11901
Here we demonstrate that AML1a , which solely has no effects as a transcriptional regulator, dominantly suppresses transcriptional activation by AML1b , and that AML1a exhibits the higher affinity for DNA-binding than AML1b .
 ( protein: AML1b, None) , ( protein: AML1b, None) , ( protein: AML1a, None) , ( protein: AML1a, 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: AML1b, None) , ( protein: AML1b, None) , ( protein: AML1a, None) , ( protein: AML1a, None) 