7314
Moreover, anti- STAT3 antibodies specifically precipitated a protein of 92 kDa that becomes phosphorylated on tyrosine upon lymphocyte treatment with H2O2 .
 ( protein: STAT3 antibodies, None) , ( protein: STAT3, None) , ( protein: 92 kDa, 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: STAT3 antibodies, None) , ( protein: STAT3, None) , ( protein: 92 kDa, None) 