2596
The stimulatory effects of gp160 are mediated through the CD4 molecule , since pretreatment with soluble CD4 abrogates its activity.
 ( protein: CD4, None) , ( protein: CD4 molecule, 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: CD4, None) , ( protein: CD4 molecule, None) 