2858
The BZLF1 gene promoter ( Zp ) was activated by crosslinking of cell surface immunoglobulin ( Ig ) with anti-Ig antibody in B cells , even in the absence of other viral genes.
 ( protein: cell surface immunoglobulin, None) , ( cell type: B cells, None) , ( protein: Ig, None) , ( DNA: BZLF1 gene promoter, None) , ( DNA: BZLF1 gene, None) , ( DNA: Zp, None) , ( protein: anti-Ig antibody, 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: cell surface immunoglobulin, None) , ( cell type: B cells, None) , ( protein: Ig, None) , ( DNA: BZLF1 gene promoter, None) , ( DNA: BZLF1 gene, None) , ( DNA: Zp, None) , ( protein: anti-Ig antibody, None) 