12552
Altogether, the CD4 gene is regulated by several positive and negative regulatory mechanisms which come into play in a developmentally coordinated manner.
 ( DNA: CD4 gene, None) , ( protein: CD4, 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:
 ( DNA: CD4 gene, None) , ( protein: CD4, None) 