14726
The human immunodeficiency virus ( HIV ) type 1 long terminal repeat ( LTR ) contains binding sites for nuclear factor kappa B ( NF-kappa B ) and the constitutively expressed transcription factor Sp1 , both of which are highly conserved in HIV and simian immunodeficiency virus isolates .
 ( protein: transcription factor Sp1, None) , ( protein: NF-kappa B, None) , ( DNA: human immunodeficiency virus ( HIV ) type 1 long terminal repeat, None) , ( protein: nuclear factor kappa B, None) , ( DNA: LTR, 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: transcription factor Sp1, None) , ( protein: NF-kappa B, None) , ( DNA: human immunodeficiency virus ( HIV ) type 1 long terminal repeat, None) , ( protein: nuclear factor kappa B, None) , ( DNA: LTR, None) 