14733
Ionizing radiation triggers a signal in human B-lymphocyte precursors that is intimately linked to an active protein-tyrosine kinase regulatory pathway .
 ( cell type: human B-lymphocyte precursors, None) , ( protein: protein-tyrosine 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:
 ( cell type: human B-lymphocyte precursors, None) , ( protein: protein-tyrosine kinase, None) 