14796
In vivo the Sp1 site is bound only in myeloid ( U937 ) cells , not in cervical carcinoma ( HeLa ) cells .
 ( cell line: cervical carcinoma ( HeLa ) cells, None) , ( cell line: myeloid ( U937 ) cells, None) , ( cell line: U937, None) , ( DNA: Sp1 site, None) , ( cell line: HeLa, 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 line: cervical carcinoma ( HeLa ) cells, None) , ( cell line: myeloid ( U937 ) cells, None) , ( cell line: U937, None) , ( DNA: Sp1 site, None) , ( cell line: HeLa, None) 