196
Interestingly, when we mutated the Sp1 site , resulting in a marked decrease in hEpoR promoter activity , we could restore transactivation by increasing GATA-1 levels in OCIM1 cells .
 ( cell type: OCIM1 cells, None) , ( protein: GATA-1, None) , ( protein: Sp1, None) , ( DNA: Sp1 site, None) , ( DNA: hEpoR promoter, 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: OCIM1 cells, None) , ( protein: GATA-1, None) , ( protein: Sp1, None) , ( DNA: Sp1 site, None) , ( DNA: hEpoR promoter, None) 