5023
In order to better characterize the human gammac promoter and define the minimal tissue-specific promoter region , progressive 5'-deletion constructs of a segment extending 1053 base pairs upstream of the major transcription start site were generated and tested for promoter activity in various hematopoietic and nonhematopoietic cell types .
 ( DNA: human gammac promoter, None) , ( DNA: 5#$%#-deletion constructs, None) , ( DNA: major transcription start site, None) , ( DNA: 1053 base pairs upstream, None) , ( DNA: minimal tissue-specific promoter region, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: human gammac promoter, None) , ( DNA: 5#$%#-deletion constructs, None) , ( DNA: major transcription start site, None) , ( DNA: 1053 base pairs upstream, None) , ( DNA: minimal tissue-specific promoter region, None) 