13372
In both activated peripheral blood T lymphocytes and activated tumorigenic T cell lines , IL-2 gene expression was blocked at the transcriptional level by okadaic acid .
 ( cell type: T lymphocytes, None) , ( cell line: activated tumorigenic T cell lines, None) , ( protein: IL-2, None) , ( cell type: activated peripheral blood T lymphocytes, 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: T lymphocytes, None) , ( cell line: activated tumorigenic T cell lines, None) , ( protein: IL-2, None) , ( cell type: activated peripheral blood T lymphocytes, None) 