13830
The levels of p56lck and p59fyn were lower in tumor-draining than in normal LN T cells and production of tyrosine -phosphorylated substrates was markedly depressed following anti-CD3 stimulation .
 ( protein: p59fyn, None) , ( cell type: normal LN T cells, None) , ( protein: tyrosine -phosphorylated substrates, None) , ( protein: anti-CD3, None) , ( protein: p56lck, 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: p59fyn, None) , ( cell type: normal LN T cells, None) , ( protein: tyrosine -phosphorylated substrates, None) , ( protein: anti-CD3, None) , ( protein: p56lck, None) 