12533
The gene encoding the retinoic acid-synthesizing enzyme aldehyde dehydrogenase 1 ( Aldh1 ), initially called Hdg-1 , was found to be ectopically activated by HOX11 in this system.
 ( protein: Aldh1, None) , ( protein: retinoic acid-synthesizing enzyme, None) , ( protein: aldehyde dehydrogenase 1, None) , ( protein: Hdg-1, None) , ( protein: HOX11, 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: Aldh1, None) , ( protein: retinoic acid-synthesizing enzyme, None) , ( protein: aldehyde dehydrogenase 1, None) , ( protein: Hdg-1, None) , ( protein: HOX11, None) 