4770
Using these T cells as a model of IL-12 signal transduction , we confirmed that these events involve members of the Janus kinase family of nonreceptor tyrosine kinases JAK2 , TYK2 , and signal transducer and activator of transcription 4 .
 ( protein: TYK2, None) , ( protein: nonreceptor tyrosine kinases, None) , ( protein: Janus kinase family, None) , ( protein: signal transducer and activator of transcription 4, None) , ( protein: JAK2, None) , ( cell type: T cells, None) , ( protein: IL-12, 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: TYK2, None) , ( protein: nonreceptor tyrosine kinases, None) , ( protein: Janus kinase family, None) , ( protein: signal transducer and activator of transcription 4, None) , ( protein: JAK2, None) , ( cell type: T cells, None) , ( protein: IL-12, None) 