11526
This identification, initially made by microsequence analysis , was verified by showing that (i) LR1 -DNA binding activity increased in B cells transfected with a nucleolin cDNA expression construct ; (ii) LR1 -DNA binding activity was recognized by antibodies raised against recombinant human nucleolin ; and (iii) in B cells transfected with epitope-tagged nucleolin expression constructs , the LR1 -DNA complex was recognized by the anti-tag antibody .
 ( protein: LR1, None) , ( DNA: epitope-tagged nucleolin expression constructs, None) , ( protein: LR1, None) , ( cell type: B cells, None) , ( protein: LR1 -DNA complex, None) , ( protein: nucleolin, None) , ( protein: LR1, None) , ( cell type: B cells, None) , ( protein: recombinant human nucleolin, None) , ( DNA: nucleolin cDNA expression construct, None) , ( protein: nucleolin, None) , ( protein: anti-tag antibody, None) , ( protein: nucleolin, 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: LR1, None) , ( DNA: epitope-tagged nucleolin expression constructs, None) , ( protein: LR1, None) , ( cell type: B cells, None) , ( protein: LR1 -DNA complex, None) , ( protein: nucleolin, None) , ( protein: LR1, None) , ( cell type: B cells, None) , ( protein: recombinant human nucleolin, None) , ( DNA: nucleolin cDNA expression construct, None) , ( protein: nucleolin, None) , ( protein: anti-tag antibody, None) , ( protein: nucleolin, None) 