3031
The murine fra-1 gene , encoding Fos-related Ag 1 , was isolated from a splenic cDNA library and sequenced.
 ( protein: Fos-related Ag 1, None) , ( DNA: splenic cDNA library, None) , ( DNA: murine fra-1 gene, 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: Fos-related Ag 1, None) , ( DNA: splenic cDNA library, None) , ( DNA: murine fra-1 gene, None) 