9678
G28-5 IgG partially blocked, whereas G28-5 sFv augmented CD40 responses during stimulation with natural ligand ( gp39-CD8 fusion protein ).
 ( protein: G28-5 IgG, None) , ( protein: G28-5 sFv, None) , ( protein: natural ligand, None) , ( protein: CD40, None) , ( protein: gp39-CD8 fusion protein, 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: G28-5 IgG, None) , ( protein: G28-5 sFv, None) , ( protein: natural ligand, None) , ( protein: CD40, None) , ( protein: gp39-CD8 fusion protein, None) 