4085
The forms produced in B lymphocytes have a predominantly activating effect on gene expression whereas those produced in neuronal cells have a predominantly inhibitory effect and can repress the expression of both the herpes simplex virus immediate-early genes and the cellular tyrosine hydroxylase gene .
 ( cell type: neuronal cells, None) , ( DNA: cellular tyrosine hydroxylase gene, None) , ( DNA: herpes simplex virus immediate-early genes, None) , ( cell type: B lymphocytes, None) , ( protein: tyrosine hydroxylase, 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:
 ( cell type: neuronal cells, None) , ( DNA: cellular tyrosine hydroxylase gene, None) , ( DNA: herpes simplex virus immediate-early genes, None) , ( cell type: B lymphocytes, None) , ( protein: tyrosine hydroxylase, None) 