4300
Our results demonstrate the regulation of STAT activity by a signaling pathway that regulates the T cell functional phenotype and is distinct from the cytokine -activated Janus kinase -STAT signaling pathway .
 ( protein: -STAT, None) , ( protein: cytokine, None) , ( protein: Janus kinase, None) , ( protein: STAT, 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: -STAT, None) , ( protein: cytokine, None) , ( protein: Janus kinase, None) , ( protein: STAT, None) 