13617
Using retinoids with different receptor binding specificity ( CD336 , CD437 , CD2019 , CD367 ), dose-dependent inhibition of IgE synthesis was shown by all four derivates, but was most marked by an RA binding the alpha receptor with high specificity.
 ( protein: alpha receptor, None) , ( protein: IgE, 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: alpha receptor, None) , ( protein: IgE, None) 