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One of the genes that encodes a CBF alpha subunit is AML1 , also called Cbf alpha 2 .
 ( protein: CBF alpha, None) , ( protein: Cbf alpha 2, None) , ( protein: CBF alpha subunit, None) , ( protein: AML1, 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: CBF alpha, None) , ( protein: Cbf alpha 2, None) , ( protein: CBF alpha subunit, None) , ( protein: AML1, None) 