13688
Retinoid X receptor and c-cerbA/thyroid hormone receptor regulate erythroid cell growth and differentiation .
 ( protein: c-cerbA/thyroid hormone receptor, None) , ( protein: Retinoid X 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: c-cerbA/thyroid hormone receptor, None) , ( protein: Retinoid X receptor, None) 