tokens: Expression of either BZLF1 or BRLF1 triggers expression of the other immediate-early factor , and together these activators act individually or in synergy on downstream targets to activate the viral lytic cycle .
folded_tokens: expression of either bzlf1 or brlf1 triggers expression of the other immediate-early factor , and together these activators act individually or in synergy on downstream targets to activate the viral lytic cycle .
labels: O O O B-DNA_domain_or_region O B-DNA_domain_or_region O O O O O B-protein_family_or_group I-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 O O O B-other_name B-other_name I-other_name O