tokens: In EBV infection most of the changes , including the early induction of cyclin D2 , are dependent on expression of EBV genes , but an alteration in the E2F-4 profile was partly independent of viral gene expression , presumably occurring in response to signal transduction activated when the virus binds to its receptor , CD21 .
folded_tokens: in ebv infection most of the changes , including the early induction of cyclin d2 , are dependent on expression of ebv genes , but an alteration in the e2f-4 profile was partly independent of viral gene expression , presumably occurring in response to signal transduction activated when the virus binds to its receptor , cd21 .
labels: O B-virus O O O O O O O O O O O B-protein_molecule I-protein_molecule O O O O O O B-virus O O O O O O O B-protein_molecule O O O O O B-other_name I-other_name I-other_name O O O O O O O O O O O O O O O O O B-protein_molecule O