12822
We have examined changes in HS1 phosphorylation after differential stimulation of CD3 , CD2 , and CD28 to elucidate its role in T cells and to further delineate the signaling pathways recruited by these receptors.
 ( protein: CD2, None) , ( protein: HS1, None) , ( protein: CD3, None) , ( cell type: T cells, None) , ( protein: CD28, 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: CD2, None) , ( protein: HS1, None) , ( protein: CD3, None) , ( cell type: T cells, None) , ( protein: CD28, None) 