11238
Activation of the Jak -Stat pathway correlates with proliferative signaling by the G-CSFR and requires the membrane-proximal box 1 PXP motif , which is conserved in members of the cytokine receptor superfamily .
 ( protein: -Stat, None) , ( protein: Jak, None) , ( protein: membrane-proximal box 1 PXP motif, None) , ( protein: cytokine receptor superfamily, None) , ( protein: G-CSFR, 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: Jak, None) , ( protein: membrane-proximal box 1 PXP motif, None) , ( protein: cytokine receptor superfamily, None) , ( protein: G-CSFR, None) 