tokens: In a wide range of cell types , the basal transcriptional activity of the LTR from SIVsmmPBj14 was found to be 2- to 4 . 5-fold higher than that of an LTR from a non-acutely pathogenic strain .
folded_tokens: in a wide range of cell types , the basal transcriptional activity of the ltr from sivsmmpbj14 was found to be 2- to 4 . 5-fold higher than that of an ltr from a non-acutely pathogenic strain .
labels: O O O O O O O O O O O O O O B-DNA_domain_or_region O B-virus O O O O O O O O O O O O O O B-DNA_domain_or_region O O O O O O