1992
The RAR alpha rearranged band in the Southern blot analysis and a chimaeric product of PML-RAR alpha by polymerase chain reaction were strongly visible before ATRA treatment , but at the time of maximal basophilia both of them were markedly diminished.
 ( protein: PML-RAR alpha, None) , ( protein: chimaeric product, None) , ( protein: RAR alpha, 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: PML-RAR alpha, None) , ( protein: chimaeric product, None) , ( protein: RAR alpha, None) 