tokens: In addition , this TR2RE- SV40 can function as a repressor to suppress the transcriptional activities of both SV40 early and late promoters .
folded_tokens: in addition , this tr2re- sv40 can function as a repressor to suppress the transcriptional activities of both sv40 early and late promoters .
labels: O O O O B-DNA_domain_or_region B-virus O O O O O O O O B-other_name I-other_name O O O O O O O O