2424
Priming with 10 nM RA , or subsequent treatment with D3 (5 nM), did not alter expression of mRNAs encoding receptors for D3 ( VDR ), RA ( RAR alpha ) or 9-CIS RA ( RXR alpha , beta , gamma ).
 ( RNA: mRNAs, None) , ( protein: RAR alpha, None) , ( protein: VDR, None) , ( protein: receptors, 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:
 ( RNA: mRNAs, None) , ( protein: RAR alpha, None) , ( protein: VDR, None) , ( protein: receptors, None) 