14373
Cell cycle analysis of E2F in primary human T cells reveals novel E2F complexes and biochemically distinct forms of free E2F .
 ( cell type: primary human T cells, None) , ( protein: E2F, None) , ( cell type: T cells, None) , ( protein: E2F, None) , ( protein: novel E2F complexes, None) , ( protein: E2F, 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: primary human T cells, None) , ( protein: E2F, None) , ( cell type: T cells, None) , ( protein: E2F, None) , ( protein: novel E2F complexes, None) , ( protein: E2F, None) 