11230
The kinases that couple ligand binding to tyrosine phosphorylation of cellular substrates by the G-CSFR with activation of specific functional programs are largely unknown.
 ( protein: cellular substrates, 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: cellular substrates, None) 