2908
Two multicopy basal enhancer motifs within the SCMV MIE enhancer , namely, 11 copies of the 16-bp cyclic AMP response element ( CRE ) and 3 copies of novel 17-bp serum response factor ( SRF ) binding sites referred to as the SNE ( SRF/NFkappaB-like element ), as well as four classical NFkappaB sites within the HCMV version, contribute to TPA responsiveness in transient assays in monocyte and T- cell types .
 ( protein: SRF, None) , ( DNA: MIE enhancer, None) , ( DNA: NFkappaB sites, None) , ( DNA: CRE, None) , ( protein: serum response factor, None) , ( DNA: SNE, None) , ( DNA: cyclic AMP response element, None) , ( DNA: SRF/NFkappaB-like element, None) , ( DNA: MIE, None) , ( DNA: serum response factor ( SRF ) binding sites, None) , ( DNA: multicopy basal enhancer motifs, 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: SRF, None) , ( DNA: MIE enhancer, None) , ( DNA: NFkappaB sites, None) , ( DNA: CRE, None) , ( protein: serum response factor, None) , ( DNA: SNE, None) , ( DNA: cyclic AMP response element, None) , ( DNA: SRF/NFkappaB-like element, None) , ( DNA: MIE, None) , ( DNA: serum response factor ( SRF ) binding sites, None) , ( DNA: multicopy basal enhancer motifs, None) 