tokens: Epstein-Barr virus EBNA3C represses Cp , the major promoter for EBNA expression , but has no effect on the promoter of the cell gene CD21 .
folded_tokens: epstein-barr virus ebna3c represses cp , the major promoter for ebna expression , but has no effect on the promoter of the cell gene cd21 .
labels: B-virus I-virus B-protein_molecule O B-DNA_domain_or_region O O O O O B-protein_family_or_group O O O O O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O