4436
In NK3.3 cells , IL-2 induced comparable formation of c-fos promoter sis-inducible element IFN-gamma-activated sequence-binding complexes containing STAT3 alone with complexes containing STAT3 and STAT1 alpha , while in preactivated primary NK cells , it preferentially induced complexes containing STAT3 and STAT1 alpha .
 ( protein: IFN-gamma-activated sequence-binding complexes, None) , ( protein: c-fos promoter sis-inducible element IFN-gamma-activated sequence-binding complexes, None) , ( cell line: NK3.3 cells, None) , ( protein: STAT3, None) , ( protein: STAT1 alpha, None) , ( cell line: preactivated primary NK cells, None) , ( protein: STAT3, None) , ( protein: STAT1 alpha, None) , ( protein: STAT3, None) , ( protein: IL-2, None) , ( DNA: c-fos promoter, 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: IFN-gamma-activated sequence-binding complexes, None) , ( protein: c-fos promoter sis-inducible element IFN-gamma-activated sequence-binding complexes, None) , ( cell line: NK3.3 cells, None) , ( protein: STAT3, None) , ( protein: STAT1 alpha, None) , ( cell line: preactivated primary NK cells, None) , ( protein: STAT3, None) , ( protein: STAT1 alpha, None) , ( protein: STAT3, None) , ( protein: IL-2, None) , ( DNA: c-fos promoter, None) 