7484
High retinoidal activity (agonist or antagonist for retinoic acid receptor ( RAR ) requires a carboxylic acid moiety and an appropriate hydrophobic group located at a suitable position on the molecule.
 ( protein: RAR, None) , ( protein: retinoic acid receptor, 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: RAR, None) , ( protein: retinoic acid receptor, None) 