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This work aimed to ascertain the role of kappaB-responsive elements of the human immunodeficiency virus type 1 ( HIV-1 ) enhancer not only in early initiation but also in long-term maintenance of proviral transcription in cells of the monocytic lineage .
 ( DNA: human immunodeficiency virus type 1 ( HIV-1 ) enhancer, None) , ( DNA: kappaB-responsive elements, None) , ( cell type: monocytic lineage, 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 immunodeficiency virus type 1 ( HIV-1 ) enhancer, None) , ( DNA: kappaB-responsive elements, None) , ( cell type: monocytic lineage, None) 