250
The interleukin-5 /receptor interaction activates Lyn and Jak2 tyrosine kinases and propagates signals via the Ras-Raf-1-MAP kinase and the Jak -STAT pathways in eosinophils .
 ( protein: Jak, None) , ( protein: -STAT, None) , ( protein: interleukin-5, None) , ( cell type: eosinophils, None) , ( protein: Ras-Raf-1-MAP kinase, 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: Jak, None) , ( protein: -STAT, None) , ( protein: interleukin-5, None) , ( cell type: eosinophils, None) , ( protein: Ras-Raf-1-MAP kinase, None) 